2012
M F F Nave; L -G Eriksson; C Giroud; J S Grassie; T Hellsten; T Johnson; K Kirov; Y Lin; J Mailloux; P Mantica; M -L Mayoral; F I Parra; J. Ongena; T Tala; A Salmi; J H F Severo; P Vries; contributors
Scalings of Spontaneous Rotation in the JET Tokamak Proceedings Article
In: Proceedings Fusion Energy 2012, pp. EX/P3-31, 2012, (Presented at the 24th IAEA Fusion Energy Conference, 8-13 October 2012, San Diego, CA, USA).
@inproceedings{1488,
title = {Scalings of Spontaneous Rotation in the JET Tokamak},
author = {M F F Nave and L -G Eriksson and C Giroud and J S Grassie and T Hellsten and T Johnson and K Kirov and Y Lin and J Mailloux and P Mantica and M -L Mayoral and F I Parra and J. Ongena and T Tala and A Salmi and J H F Severo and P Vries and contributors},
year = {2012},
date = {2012-10-01},
booktitle = {Proceedings Fusion Energy 2012},
volume = {IAEA-CN-197},
pages = {EX/P3-31},
note = {Presented at the 24th IAEA Fusion Energy Conference, 8-13 October 2012, San Diego, CA, USA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
M -L Mayoral; V Bobkov; A Czarnecka; I Day; A Ekedahl; P Jacquet; M Goniche; R King; K Kirov; E. Lerche; J Mailloux; D. Van Eester; O Asunta; C Challis; D Ciric; J W Coenen; L Colas; M C Giroud; M Graham; I Jenkins; E Joffrin; T Jones; D King; V Kiptily; C C Klepper; C Maggi; F Marcotte; G Matthews; D Milanesio; I Monakhov; M Nightingale; R Neu; J. Ongena; T Puetterich; V Riccardo; F Rimini; J Strachan; E Surrey; V Thompson; G. Van Rooij; contributors
On the Challenge of Plasma Heating with the JET Metallic Wall Proceedings Article
In: Proceedings Fusion Energy 2012, pp. EX/4-3, 2012, (Presented at the 24th IAEA Fusion Energy Conference, 8-13 October 2012, San Diego, CA, USA).
@inproceedings{1486,
title = {On the Challenge of Plasma Heating with the JET Metallic Wall},
author = {M -L Mayoral and V Bobkov and A Czarnecka and I Day and A Ekedahl and P Jacquet and M Goniche and R King and K Kirov and E. Lerche and J Mailloux and D. Van Eester and O Asunta and C Challis and D Ciric and J W Coenen and L Colas and M C Giroud and M Graham and I Jenkins and E Joffrin and T Jones and D King and V Kiptily and C C Klepper and C Maggi and F Marcotte and G Matthews and D Milanesio and I Monakhov and M Nightingale and R Neu and J. Ongena and T Puetterich and V Riccardo and F Rimini and J Strachan and E Surrey and V Thompson and G. Van Rooij and contributors},
year = {2012},
date = {2012-10-01},
booktitle = {Proceedings Fusion Energy 2012},
volume = {IAEA-CN-197},
pages = {EX/4-3},
note = {Presented at the 24th IAEA Fusion Energy Conference, 8-13 October 2012, San Diego, CA, USA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
M Lehnen; G Arnoux; S Brezinsek; J Flanagan; S N Gerasimov; N Hartmann; T C Hender; A Huber; S. Jachmich; U Kruezi; G F Matthews2; J Morris; V V Plyusnin; C Reux; V Riccardo; B Sieglin; P C Vries; contributors
Impact and mitigation of disruptions with the ITER-like wall in JET Proceedings Article
In: Proceedings Fusion Energy 2012, pp. EX/9-1, 2012, (Presented at the 24th IAEA Fusion Energy Conference, 8-13 October 2012, San Diego, CA, USA).
@inproceedings{1484,
title = {Impact and mitigation of disruptions with the ITER-like wall in JET},
author = {M Lehnen and G Arnoux and S Brezinsek and J Flanagan and S N Gerasimov and N Hartmann and T C Hender and A Huber and S. Jachmich and U Kruezi and G F Matthews2 and J Morris and V V Plyusnin and C Reux and V Riccardo and B Sieglin and P C Vries and contributors},
year = {2012},
date = {2012-10-01},
booktitle = {Proceedings Fusion Energy 2012},
volume = {IAEA-CN-197},
pages = {EX/9-1},
note = {Presented at the 24th IAEA Fusion Energy Conference, 8-13 October 2012, San Diego, CA, USA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
D Douai; T. Wauters; A. I. Lyssoivan; V Philipps; V Rohde; S H Hong; N Ashikawa; V Bobkov; Br S é; S Brezinsek; M Graham; E Joffrin; G Lombard; S H Kim; A Kreter; D Kogut; M -L Mayoral; J. -M. Noterdaeme; J. Ongena; Pegouri B é; R A Pitts; G Sergienko; M Shimada; S J Wang; TORE SUPRA Team; TEXTOR Team; ASDEX Upgrade Team; KSTAR Team; JET EFDA Contributors; ITPA Topical Group Scrape-Off-Layer Divertor
Overview of the International Research on Ion Cyclotron Wall Conditioning Proceedings Article
In: Proceedings Fusion Energy 2012, pp. EX/P5-09, 2012, (Presented at the 24th IAEA Fusion Energy Conference, 8-13 October 2012, San Diego, CA, USA).
@inproceedings{1477,
title = {Overview of the International Research on Ion Cyclotron Wall Conditioning},
author = {D Douai and T. Wauters and A. I. Lyssoivan and V Philipps and V Rohde and S H Hong and N Ashikawa and V Bobkov and Br S é and S Brezinsek and M Graham and E Joffrin and G Lombard and S H Kim and A Kreter and D Kogut and M -L Mayoral and J. -M. Noterdaeme and J. Ongena and Pegouri B é and R A Pitts and G Sergienko and M Shimada and S J Wang and TORE SUPRA Team and TEXTOR Team and ASDEX Upgrade Team and KSTAR Team and JET EFDA Contributors and ITPA Topical Group Scrape-Off-Layer Divertor},
year = {2012},
date = {2012-10-01},
booktitle = {Proceedings Fusion Energy 2012},
volume = {IAEA-CN-197},
pages = {EX/P5-09},
note = {Presented at the 24th IAEA Fusion Energy Conference, 8-13 October 2012, San Diego, CA, USA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
V Petrzilka; M Goniche; G Corrigan; J. Ongena; V Bobkov; L Colas; A Ekedahl; P Jacquet; M -L Mayoral; contributors
SOL density variations during ICRF heating and gas injection Proceedings Article
In: Society, European Physical (Ed.): Europhysics conference abstracts, pp. P2.027, 2012, (Proceedings of the 39th EPS Conference on Plasma Physics and 16th International Congress on Plasma Physics, Stockholm (Sweden), 2 - 6 July 2012).
@inproceedings{1468,
title = {SOL density variations during ICRF heating and gas injection},
author = {V Petrzilka and M Goniche and G Corrigan and J. Ongena and V Bobkov and L Colas and A Ekedahl and P Jacquet and M -L Mayoral and contributors},
editor = {European Physical Society},
year = {2012},
date = {2012-07-01},
booktitle = {Europhysics conference abstracts},
volume = {36F},
pages = {P2.027},
note = {Proceedings of the 39th EPS Conference on Plasma Physics and 16th International Congress on Plasma Physics, Stockholm (Sweden), 2 - 6 July 2012},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
D. Van Eester; E. Lerche; P Jacquet; V Bobkov; A Czarnecka; J W Coenen; L Colas; K. Crombé; M Graham; S. Jachmich; E joffrin; C C Klepper; V Kiptily; M Lehnen; C Maggi; F Marcotte; G Matthews; M -L Mayoral; K McCormick; I Monakhov; M F F Nave; R Neu; C Noble; J. Ongena; T P ü; F Rimini; Van G Rooij; JET EFDA Contributors
Characterization of Ion Cyclotron Resonance Heating in presence of the ITER-like wall in JET Proceedings Article
In: Society, European Physical (Ed.): Europhysics conference abstracts, pp. P1.094, 2012, (Proceedings of the 39th EPS Conference on Plasma Physics and 16th International Congress on Plasma Physics, Stockholm (Sweden), 2 - 6 July 2012).
@inproceedings{1464,
title = {Characterization of Ion Cyclotron Resonance Heating in presence of the ITER-like wall in JET},
author = {D. Van Eester and E. Lerche and P Jacquet and V Bobkov and A Czarnecka and J W Coenen and L Colas and K. Crombé and M Graham and S. Jachmich and E joffrin and C C Klepper and V Kiptily and M Lehnen and C Maggi and F Marcotte and G Matthews and M -L Mayoral and K McCormick and I Monakhov and M F F Nave and R Neu and C Noble and J. Ongena and T P ü and F Rimini and Van G Rooij and JET EFDA Contributors},
editor = {European Physical Society},
year = {2012},
date = {2012-07-01},
booktitle = {Europhysics conference abstracts},
volume = {36F},
pages = {P1.094},
note = {Proceedings of the 39th EPS Conference on Plasma Physics and 16th International Congress on Plasma Physics, Stockholm (Sweden), 2 - 6 July 2012},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
F. Durodié; M P S Nightingale; M L Mayoral; J. Ongena; A Argouarch; G BergerBy; T Blackman; V Cocilovo; A Czarnecka; S Dowson; D Frigione; R Goulding; M Graham; J Hobirk; S Huygen; S. Jachmich; P Jacquet; E. Lerche; P. U. Lamalle; T Loarer; R Maggiora; A. Messiaen; D Milanesio; I Monakhov; M F F Nave; F Rimini; H Sheikh; C Sozzi; M Tsalas; D. Van Eester; M. Vrancken; A Whitehurst; E Wooldridge; K D Zastrow; contributors
Physics and engineering results obtained with the ion cyclotron range of frequencies ITER-like antenna on JET Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074012+, 2012, ISSN: 0741-3335.
@article{1450,
title = {Physics and engineering results obtained with the ion cyclotron range of frequencies ITER-like antenna on JET},
author = {F. Durodié and M P S Nightingale and M L Mayoral and J. Ongena and A Argouarch and G BergerBy and T Blackman and V Cocilovo and A Czarnecka and S Dowson and D Frigione and R Goulding and M Graham and J Hobirk and S Huygen and S. Jachmich and P Jacquet and E. Lerche and P. U. Lamalle and T Loarer and R Maggiora and A. Messiaen and D Milanesio and I Monakhov and M F F Nave and F Rimini and H Sheikh and C Sozzi and M Tsalas and D. Van Eester and M. Vrancken and A Whitehurst and E Wooldridge and K D Zastrow and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074012},
doi = {10.1088/0741-3335/54/7/074012},
issn = {0741-3335},
year = {2012},
date = {2012-06-27},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074012+},
abstract = {This paper summarizes the operational experience of the ion cyclotron resonant frequency (ICRF) ITER-like antenna on JET aiming at substantially increasing the power density in the range of the requirements for ITER combined with load resiliency. An in-depth description of its commissioning, operational aspects and achieved performances is presented.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A. I. Lyssoivan; D Douai; R. Koch; J. Ongena; V Philipps; F C Schüller; D. Van Eester; T. Wauters; T Blackman; V Bobkov; S Brezinsek; Cal; F. Durodié; E Gauthier; T Gerbaud; M Graham; S. Jachmich; E Joffrin; A Kreter; V. Kyrytsya; E. Lerche; P Lomas; F. Louche; M Maslov; M L Mayoral; V Moiseenko; I Monakhov; I Pankratov; M. K. Paul; R A Pitts; V Plyusnin; G Sergienko; M Shimada; V L Vdovin; contributors
Simulation of ITER full-field ICWC scenario in JET: RF physics aspects Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074014+, 2012, ISSN: 0741-3335.
@article{1452,
title = {Simulation of ITER full-field ICWC scenario in JET: RF physics aspects},
author = {A. I. Lyssoivan and D Douai and R. Koch and J. Ongena and V Philipps and F C Schüller and D. Van Eester and T. Wauters and T Blackman and V Bobkov and S Brezinsek and Cal and F. Durodié and E Gauthier and T Gerbaud and M Graham and S. Jachmich and E Joffrin and A Kreter and V. Kyrytsya and E. Lerche and P Lomas and F. Louche and M Maslov and M L Mayoral and V Moiseenko and I Monakhov and I Pankratov and M. K. Paul and R A Pitts and V Plyusnin and G Sergienko and M Shimada and V L Vdovin and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074014},
doi = {10.1088/0741-3335/54/7/074014},
issn = {0741-3335},
year = {2012},
date = {2012-06-25},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074014+},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A Czarnecka; F. Durodié; A C A Figueiredo; K D Lawson; E. Lerche; M L Mayoral; J. Ongena; D. Van Eester; K D Zastrow; Vl V Bobkov; I H Coffey; L Colas; P Jacquet; I Monakhov; contributors
Impurity production from the ion cyclotron resonance heating antennas in JET Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074013+, 2012, ISSN: 0741-3335.
@article{1451,
title = {Impurity production from the ion cyclotron resonance heating antennas in JET},
author = {A Czarnecka and F. Durodié and A C A Figueiredo and K D Lawson and E. Lerche and M L Mayoral and J. Ongena and D. Van Eester and K D Zastrow and Vl V Bobkov and I H Coffey and L Colas and P Jacquet and I Monakhov and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074013},
doi = {10.1088/0741-3335/54/7/074013},
issn = {0741-3335},
year = {2012},
date = {2012-06-25},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074013+},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M Graham; M L Mayoral; I Monakhov; J. Ongena; T Blackman; M P S Nightingale; E Wooldridge; F. Durodié; A Argouarch; G Berger-By; A Czarnecka; S Dowson; R Goulding; S Huygen; P Jacquet; T J Wade; E. Lerche; P. U. Lamalle; H Sheikh; D. Van Eester; M. Vrancken; A Walden; A Whitehurst; contributors
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074011+, 2012, ISSN: 0741-3335.
@article{1449,
title = {Implementation of load resilient ion cyclotron resonant frequency (ICRF) systems to couple high levels of ICRF power to ELMy H-mode plasmas in JET},
author = {M Graham and M L Mayoral and I Monakhov and J. Ongena and T Blackman and M P S Nightingale and E Wooldridge and F. Durodié and A Argouarch and G Berger-By and A Czarnecka and S Dowson and R Goulding and S Huygen and P Jacquet and T J Wade and E. Lerche and P. U. Lamalle and H Sheikh and D. Van Eester and M. Vrancken and A Walden and A Whitehurst and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074011},
doi = {10.1088/0741-3335/54/7/074011},
issn = {0741-3335},
year = {2012},
date = {2012-06-25},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074011+},
abstract = {The paper summarizes the continuous developments made to the ion cyclotron resonant frequency (ICRF) system at JET in order to improve the reliability of the power coupled to plasma. It details the changes and improvements made to the system so that more power is coupled during ELMy plasmas as well as increasing the power density to demonstrate reliable operation in the range of the requirements for ITER. Results obtained using the conventional matching (stubs and trombones) system, 3 dB couplers and the conjugate-T scheme with variable matching elements outside the wave launching structure (external conjugate-T) and inside the wave launching structure (ITER-like antenna) are described. The presence of the three different approaches to load resilient ICRF systems at JET creates a unique opportunity to compare these methods under very similar plasma conditions and to assess the results of ICRF power delivery to ELMy plasmas, an important issue for ITER. The impact of the availability of increased levels of reliable ICRF power on plasma physics studies in JET is illustrated.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
V G Kiptily; D. Van Eester; E. Lerche; T Hellsten; J. Ongena; M L Mayoral; F E Cecil; D Darrow; Gatu M Johnson; V Goloborod'ko; G Gorini; C Hellesen; T Johnson; Y Lin; M Maslov; M Nocente; M Tardocchi; I Voitsekhovitch; contributors
Fast ions in mode conversion heating (3He)-H plasmas in JET Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074010+, 2012, ISSN: 0741-3335.
@article{1448,
title = {Fast ions in mode conversion heating (3He)-H plasmas in JET},
author = {V G Kiptily and D. Van Eester and E. Lerche and T Hellsten and J. Ongena and M L Mayoral and F E Cecil and D Darrow and Gatu M Johnson and V Goloborod'ko and G Gorini and C Hellesen and T Johnson and Y Lin and M Maslov and M Nocente and M Tardocchi and I Voitsekhovitch and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074010},
doi = {10.1088/0741-3335/54/7/074010},
issn = {0741-3335},
year = {2012},
date = {2012-06-22},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074010+},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
D. Van Eester; E. Lerche; T J Johnson; T Hellsten; J. Ongena; M L Mayoral; D Frigione; C Sozzi; G Calabro; M Lennholm; P Beaumont; T Blackman; D Brennan; A Brett; M Cecconello; I Coffey; A Coyne; K. Crombé; A Czarnecka; R Felton; Gatu M Johnson; C Giroud; G Gorini; C Hellesen; P Jacquet; Y. O. Kazakov; V Kiptily; S Knipe; A Krasilnikov; Y Lin; M Maslov; I Monakhov; C Noble; M Nocente; L Pangioni; I Proverbio; M Stamp; W Studholme; M Tardocchi; T W Versloot; V Vdovin; A Whitehurst; E Wooldridge; V Zoita; contributors
Minority and mode conversion heating in (3He)-H JET plasmas Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074009+, 2012, ISSN: 0741-3335.
@article{1447,
title = {Minority and mode conversion heating in (3He)-H JET plasmas},
author = {D. Van Eester and E. Lerche and T J Johnson and T Hellsten and J. Ongena and M L Mayoral and D Frigione and C Sozzi and G Calabro and M Lennholm and P Beaumont and T Blackman and D Brennan and A Brett and M Cecconello and I Coffey and A Coyne and K. Crombé and A Czarnecka and R Felton and Gatu M Johnson and C Giroud and G Gorini and C Hellesen and P Jacquet and Y. O. Kazakov and V Kiptily and S Knipe and A Krasilnikov and Y Lin and M Maslov and I Monakhov and C Noble and M Nocente and L Pangioni and I Proverbio and M Stamp and W Studholme and M Tardocchi and T W Versloot and V Vdovin and A Whitehurst and E Wooldridge and V Zoita and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074009},
doi = {10.1088/0741-3335/54/7/074009},
issn = {0741-3335},
year = {2012},
date = {2012-06-22},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074009+},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
E. Lerche; D. Van Eester; T J Johnson; T Hellsten; J. Ongena; M L Mayoral; D Frigione; C Sozzi; G Calabro; M Lennholm; P Beaumont; T Blackman; D Brennan; A Brett; M Cecconello; I Coffey; A Coyne; K. Crombé; A Czarnecka; R Felton; C Giroud; G Gorini; C Hellesen; P Jacquet; V Kiptily; S Knipe; A Krasilnikov; M Maslov; I Monakhov; C Noble; M Nocente; L Pangioni; I Proverbio; G Sergienko; M Stamp; W Studholme; M Tardocchi; V Vdovin; T Versloot; I Voitsekhovitch; A Whitehurst; E Wooldridge; V Zoita; contributors
Experimental investigation of ion cyclotron range of frequencies heating scenarios for ITER's half-field hydrogen phase performed in JET Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074008+, 2012, ISSN: 0741-3335.
@article{1446,
title = {Experimental investigation of ion cyclotron range of frequencies heating scenarios for ITER's half-field hydrogen phase performed in JET},
author = {E. Lerche and D. Van Eester and T J Johnson and T Hellsten and J. Ongena and M L Mayoral and D Frigione and C Sozzi and G Calabro and M Lennholm and P Beaumont and T Blackman and D Brennan and A Brett and M Cecconello and I Coffey and A Coyne and K. Crombé and A Czarnecka and R Felton and C Giroud and G Gorini and C Hellesen and P Jacquet and V Kiptily and S Knipe and A Krasilnikov and M Maslov and I Monakhov and C Noble and M Nocente and L Pangioni and I Proverbio and G Sergienko and M Stamp and W Studholme and M Tardocchi and V Vdovin and T Versloot and I Voitsekhovitch and A Whitehurst and E Wooldridge and V Zoita and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074008},
doi = {10.1088/0741-3335/54/7/074008},
issn = {0741-3335},
year = {2012},
date = {2012-06-22},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074008+},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
T Hellsten; T J Johnson; D. Van Eester; E. Lerche; Y Lin; M L Mayoral; J. Ongena; G Calabro; K. Crombé; D Frigione; C Giroud; M Lennholm; P Mantica; M F F Nave; V Naulin; C Sozzi; W Studholme; T Tala; T Versloot; contributors
Observations of rotation in JET plasmas with electron heating by ion cyclotron resonance heating Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074007+, 2012, ISSN: 0741-3335.
@article{1445,
title = {Observations of rotation in JET plasmas with electron heating by ion cyclotron resonance heating},
author = {T Hellsten and T J Johnson and D. Van Eester and E. Lerche and Y Lin and M L Mayoral and J. Ongena and G Calabro and K. Crombé and D Frigione and C Giroud and M Lennholm and P Mantica and M F F Nave and V Naulin and C Sozzi and W Studholme and T Tala and T Versloot and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074007},
doi = {10.1088/0741-3335/54/7/074007},
issn = {0741-3335},
year = {2012},
date = {2012-06-22},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074007+},
abstract = {The rotation of L-mode plasmas in the JET tokamak heated by waves in the ion cyclotron range of frequencies (ICRF) damped on electrons, is reported. The plasma in the core is found to rotate in the counter-current direction with a high shear and in the outer part of the plasma with an almost constant angular rotation. The core rotation is stronger in magnitude than observed for scenarios with dominating ion cyclotron absorption. Two scenarios are considered: the inverted mode conversion scenarios and heating at the second harmonic 3 He cyclotron resonance in H plasmas. In the latter case, electron absorption of the fast magnetosonic wave by transit time magnetic pumping and electron Landau damping (TTMP/ELD) is the dominating absorption mechanism. Inverted mode conversion is done in ( 3 He)-H plasmas where the mode converted waves are essentially absorbed by electron Landau damping. Similar rotation profiles are seen when heating at the second harmonic cyclotron frequency of 3 He and with mode conversion at high concentrations of 3 He. The magnitude of the counter-rotation is found to decrease with an increasing plasma current. The correlation of the rotation with the electron temperature is better than with coupled power, indicating that for these types of discharges the dominating mechanism for the rotation is related to indirect effects of electron heat transport, rather than to direct effects of ICRF heating. There is no conclusive evidence that mode conversion in itself affects rotation for these discharges.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M F F Nave; L G Eriksson; C Giroud; T J Johnson; K Kirov; M L Mayoral; J. -M. Noterdaeme; J. Ongena; G Saibene; R Sartori; F Rimini; T Tala; P Vries; K D Zastrow; contributors
JET intrinsic rotation studies in plasmas with a high normalized beta and varying toroidal field ripple Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074006+, 2012, ISSN: 0741-3335.
@article{1444,
title = {JET intrinsic rotation studies in plasmas with a high normalized beta and varying toroidal field ripple},
author = {M F F Nave and L G Eriksson and C Giroud and T J Johnson and K Kirov and M L Mayoral and J. -M. Noterdaeme and J. Ongena and G Saibene and R Sartori and F Rimini and T Tala and P Vries and K D Zastrow and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074006},
doi = {10.1088/0741-3335/54/7/074006},
issn = {0741-3335},
year = {2012},
date = {2012-06-22},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074006+},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
J. Ongena
The interaction of radio-frequency fields with fusion plasmas: the JET experience Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 070201+, 2012, ISSN: 0741-3335.
@article{1438,
title = {The interaction of radio-frequency fields with fusion plasmas: the JET experience},
author = {J. Ongena},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/070201},
doi = {10.1088/0741-3335/54/7/070201},
issn = {0741-3335},
year = {2012},
date = {2012-06-22},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {070201+},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
V Petrzilka; J Mailloux; J. Ongena; G Corrigan; V Fuchs; M Goniche; V Parail; P Belo; A Ekedahl; P Jacquet; M L Mayoral; C Silva; M Stamp; contributors
JET scrape-off-layer ionization at lower hybrid wave launching Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074005+, 2012, ISSN: 0741-3335.
@article{1443,
title = {JET scrape-off-layer ionization at lower hybrid wave launching},
author = {V Petrzilka and J Mailloux and J. Ongena and G Corrigan and V Fuchs and M Goniche and V Parail and P Belo and A Ekedahl and P Jacquet and M L Mayoral and C Silva and M Stamp and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074005},
doi = {10.1088/0741-3335/54/7/074005},
issn = {0741-3335},
year = {2012},
date = {2012-06-14},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074005+},
abstract = {We present in this paper modelling of the JET scrape-off layer (SOL) including direct SOL ionization by launched lower hybrid (LH) waves. For that purpose, the two-dimensional fluid code EDGE2D-NIMBUS was modified in order to account for possible enhanced ionization in the SOL, due to the LH power absorbed by the electrons in a layer extending in the radial direction from the launcher. By taking the direct LH SOL ionization into account, the observed modification of the density in front of the LH antenna during a LH power and gas injection, can be explained. The JET grill private SOL limiters, acting as sinks for the particles, are also included in the model. We compare the efficiency of gas puffing from the top and the outer mid-plane for SOL density enhancement and improvement in LH coupling. The observed reduction of the temporal variation of the LH wave reflection coefficient and of measured saturated currents in the SOL during ELMs, is explained. The density depletion, by ponderomotive forces in front of the grill, is estimated.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A Ekedahl; V Petrzilka; Y Baranov; T M Biewer; M Brix; M Goniche; P Jacquet; K K Kirov; C C Klepper; J Mailloux; M L Mayoral; M F F Nave; J. Ongena; E Rachlew; contributors
Influence of gas puff location on the coupling of lower hybrid waves in JET ELMy H-mode plasmas Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074004+, 2012, ISSN: 0741-3335.
@article{1442,
title = {Influence of gas puff location on the coupling of lower hybrid waves in JET ELMy H-mode plasmas},
author = {A Ekedahl and V Petrzilka and Y Baranov and T M Biewer and M Brix and M Goniche and P Jacquet and K K Kirov and C C Klepper and J Mailloux and M L Mayoral and M F F Nave and J. Ongena and E Rachlew and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074004},
doi = {10.1088/0741-3335/54/7/074004},
issn = {0741-3335},
year = {2012},
date = {2012-06-14},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074004+},
abstract = {Reliable coupling of the lower hybrid current drive (LHCD) to H-mode plasmas in JET is made feasible through a dedicated gas injection system, located at the outer wall and magnetically connected to the antenna (Pericoli Ridolfini et al 2004 Plasma Phys. Control. Fusion 46 349, Ekedahl et al 2005 Nucl. Fusion 45 351, Ekedahl et al 2009 Plasma Phys. Control. Fusion 51 044001). An experiment was carried out in JET in order to investigate whether a gas injection from the top of the torus, as is foreseen for the main gas injection in ITER, could also provide good coupling of the LH waves if magnetically connected to the antenna. The results show that a top gas injection was not efficient for providing a reliable LHCD power injection, in spite of being magnetically connected and in spite of using almost twice the amount of gas flow compared with the dedicated outer mid-plane gas puffing system. A dedicated gas injection system, set in the outer wall and magnetically connected to the LHCD antenna, is therefore recommended in order to provide the reliable coupling conditions for an LHCD antenna in ITER.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
K K Kirov; Yu Baranov; Th Gerbaud; M Goniche; J Mailloux; M L Mayoral; J. Ongena; S Schmuck; contributors
Analysis of electron cyclotron emission by fast electrons generated by lower hybrid current drive at JET Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074003+, 2012, ISSN: 0741-3335.
@article{1441,
title = {Analysis of electron cyclotron emission by fast electrons generated by lower hybrid current drive at JET},
author = {K K Kirov and Yu Baranov and Th Gerbaud and M Goniche and J Mailloux and M L Mayoral and J. Ongena and S Schmuck and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074003},
doi = {10.1088/0741-3335/54/7/074003},
issn = {0741-3335},
year = {2012},
date = {2012-06-14},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074003+},
abstract = {Heating and driving non-inductive current in plasmas by means of radio frequency waves in the range of the lower hybrid (LH) frequencies is important for steady-state (SS) operation in fusion (Fish 1987 Rev. Mod. Phys. 59 175 ). The penetration of LH waves at higher densities has recently been reviewed (Goniche et al 2010 Plasma Phys. Control. Fusion 52 124031 ) in order to assess the lower hybrid current drive (LHCD) performance under conditions as close as possible to the ITER SS scenario. The analysis of various experiments performed on C-Mod, FTU, Tore Supra and JET indicates (Goniche et al 2010 Plasma Phys. Control. Fusion 52 124031 ) a degradation of the current drive (CD) efficiency when the plasma density is increased, while at the same time the LH wave absorption shifts to the plasma periphery. JET pulses in H-mode confirm this trend and in addition it is found that the accessibility condition is not the main parameter to explain the reduction in the CD efficiency. This paper further discusses the LH deposition in H-mode plasmas and in particular it shows that lower pedestal density and higher temperature are beneficial regarding the LH wave penetration. The investigation presented here is based on the analysis of the electron cyclotron emission (ECE) spectra in plasmas with fast electrons generated by LH waves. The study includes the numerical calculation of the ECE intensity and a comparison with experimental profiles in the plasma periphery for optically thin frequencies.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M Goniche; J Mailloux; I Coffey; A Ekedahl; L Delpech; P Jacquet; J Hillairet; K Kirov; M L Mayoral; D Milanesio; R Maggiora; J. Ongena; G Sergienko; contributors
Operational issues at high lower hybrid power density in JET: waveguide conditioning and arc detection Journal Article
In: Plasma Physics and Controlled Fusion, vol. 54, no. 7, pp. 074002+, 2012, ISSN: 0741-3335.
@article{1440,
title = {Operational issues at high lower hybrid power density in JET: waveguide conditioning and arc detection},
author = {M Goniche and J Mailloux and I Coffey and A Ekedahl and L Delpech and P Jacquet and J Hillairet and K Kirov and M L Mayoral and D Milanesio and R Maggiora and J. Ongena and G Sergienko and contributors},
url = {http://dx.doi.org/10.1088/0741-3335/54/7/074002},
doi = {10.1088/0741-3335/54/7/074002},
issn = {0741-3335},
year = {2012},
date = {2012-06-01},
journal = {Plasma Physics and Controlled Fusion},
volume = {54},
number = {7},
pages = {074002+},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Agata Czarnecka; E. Lerche; J. Ongena; D. Van Eester; Antonio C A Figueiredo; Ivor H Coffey; Klaus-Dieter Zastrow; contributors
Impurity studies for the ITER half-field ICRF heating scenarios in hydrogen plasmas on JET Journal Article
In: Nukleonika, vol. 57, no. 1, pp. 25-30, 2012.
@article{1427,
title = {Impurity studies for the ITER half-field ICRF heating scenarios in hydrogen plasmas on JET},
author = {Agata Czarnecka and E. Lerche and J. Ongena and D. Van Eester and Antonio C A Figueiredo and Ivor H Coffey and Klaus-Dieter Zastrow and contributors},
year = {2012},
date = {2012-03-01},
journal = {Nukleonika},
volume = {57},
number = {1},
pages = {25-30},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M. K. Paul; A. I. Lyssoivan; R. Koch; T. Wauters; D Douai; V Bobkov; D. Van Eester; E. Lerche; J. Ongena; V Rohde; J. -M. Noterdaeme; M Graham; M L Mayoral; I Monakhov; M Nightingale; V V Plyusnin
Plasma and antenna coupling characterization in ICRF-wall conditioning experiments Journal Article
In: Fusion Engineering and Design, vol. 87, no. 2, pp. 98–103, 2012, ISSN: 09203796.
@article{1424,
title = {Plasma and antenna coupling characterization in ICRF-wall conditioning experiments},
author = {M. K. Paul and A. I. Lyssoivan and R. Koch and T. Wauters and D Douai and V Bobkov and D. Van Eester and E. Lerche and J. Ongena and V Rohde and J. -M. Noterdaeme and M Graham and M L Mayoral and I Monakhov and M Nightingale and V V Plyusnin},
url = {http://dx.doi.org/10.1016/j.fusengdes.2011.10.009},
doi = {10.1016/j.fusengdes.2011.10.009},
issn = {09203796},
year = {2012},
date = {2012-02-01},
journal = {Fusion Engineering and Design},
volume = {87},
number = {2},
pages = {98–103},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Yu Baranov; C D Challis; J. Ongena; B Alper; G Arnoux; P Buratti; T Gerbaud; D Keeling; V Kiptily; J Mailloux; M L Mayoral; I Monakhov; V Parail; G Sergienko; S Sharapov
In: Nuclear Fusion, vol. 52, no. 2, pp. 023018+, 2012, ISSN: 0029-5515.
@article{1420,
title = {Large ELM-like events triggered by core MHD in JET advanced tokamak plasmas: impact on plasmas profiles, plasma-facing components and heating systems},
author = {Yu Baranov and C D Challis and J. Ongena and B Alper and G Arnoux and P Buratti and T Gerbaud and D Keeling and V Kiptily and J Mailloux and M L Mayoral and I Monakhov and V Parail and G Sergienko and S Sharapov},
url = {http://dx.doi.org/10.1088/0029-5515/52/2/023018},
doi = {10.1088/0029-5515/52/2/023018},
issn = {0029-5515},
year = {2012},
date = {2012-02-01},
journal = {Nuclear Fusion},
volume = {52},
number = {2},
pages = {023018+},
abstract = {Large and infrequent collapse events have been observed in high β N advanced tokamak (AT) plasmas in JET. Although they have features similar to large ELMs, they were triggered by core MHD. They caused a considerable loss of the plasma thermal and fast particle energy (~10% of the total stored energy), but the heat load in the divertor due to these collapse events was small as a fraction of the plasma energy loss compared with regular type-I ELMs. Instead, significant heating of the main chamber wall was observed. A large, toroidally asymmetric, increase in the neutral gas pressure outside the plasma was observed after such events, which caused arcs in the lower hybrid (LH) and ion cyclotron (IC) heating systems and increased reionization in the neutral beam (NB) injectors. The collapses resulted in a reduction in the electron and ion temperatures and toroidal rotation of the whole plasma, a rise in Z eff ; and a sufficiently large increase in the peripheral electron density to completely black-out the ECE emission from the plasma core. These features have been modelled to gain an understanding of the plasma behaviour associated with these collapse events and the implication for the operation of AT plasma scenarios with high additional heating power will be discussed.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
J. Ongena; A. Messiaen
Heating, Confinement and Extrapolation to Reactors Proceedings Article
In: ANS, (Ed.): Transactions of Fusion Science and Technology, pp. 413-420, 2012.
@inproceedings{1416,
title = {Heating, Confinement and Extrapolation to Reactors},
author = {J. Ongena and A. Messiaen},
editor = {ANS},
year = {2012},
date = {2012-02-01},
booktitle = {Transactions of Fusion Science and Technology},
pages = {413-420},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
J. Ongena; I Voitsekhovitch; M. Evrard; D McCune
Numerical Transport Codes Proceedings Article
In: ANS, (Ed.): Transactions of Fusion Science and Technology, pp. 180-189, 2012.
@inproceedings{1415,
title = {Numerical Transport Codes},
author = {J. Ongena and I Voitsekhovitch and M. Evrard and D McCune},
editor = {ANS},
year = {2012},
date = {2012-02-01},
booktitle = {Transactions of Fusion Science and Technology},
pages = {180-189},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
J. Ongena; G Van Oost
Energy for Future Centuries: Prospects for Fusion Power as a Future Energy Source Proceedings Article
In: ANS, (Ed.): Transactions of Fusion Science and Technology, pp. 3-16, 2012.
@inproceedings{1410,
title = {Energy for Future Centuries: Prospects for Fusion Power as a Future Energy Source},
author = {J. Ongena and G Van Oost},
editor = {ANS},
year = {2012},
date = {2012-02-01},
booktitle = {Transactions of Fusion Science and Technology},
pages = {3-16},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
2011
D. Van Eester; E. Lerche; T Johnson; T Hellsten; J. Ongena; M L Mayoral; D Frigione; C Sozzi; G Calabro; M Lennholm; P Beaumont; T Blackman; D Brennan; A Brett; M Cecconello; I Coffey; A Coyne; K. Crombé; A Czarnecka; R Felton; Gatu M Johnson; C Giroud; G Gorini; C Hellesen; P Jacquet; Y. O. Kazakov; V Kiptily; S Knipe; A Krasilnikov; Y Lin; M Maslov; I Monakhov; C Noble; M Nocente; L Pangioni; I Proverbio; M Stamp; W Studholme; M Tardocchi; T W Versloot; V Vdovin; A Whitehurst; E Wooldridge; V Zoita; contributors
Enhancing The Mode Conversion Efficiency In JET Plasmas With Multiple Mode Conversion Layers Journal Article
In: AIP Conference Proceedings, vol. 1406, no. 1, pp. 301–308, 2011.
@article{1405,
title = {Enhancing The Mode Conversion Efficiency In JET Plasmas With Multiple Mode Conversion Layers},
author = {D. Van Eester and E. Lerche and T Johnson and T Hellsten and J. Ongena and M L Mayoral and D Frigione and C Sozzi and G Calabro and M Lennholm and P Beaumont and T Blackman and D Brennan and A Brett and M Cecconello and I Coffey and A Coyne and K. Crombé and A Czarnecka and R Felton and Gatu M Johnson and C Giroud and G Gorini and C Hellesen and P Jacquet and Y. O. Kazakov and V Kiptily and S Knipe and A Krasilnikov and Y Lin and M Maslov and I Monakhov and C Noble and M Nocente and L Pangioni and I Proverbio and M Stamp and W Studholme and M Tardocchi and T W Versloot and V Vdovin and A Whitehurst and E Wooldridge and V Zoita and contributors},
editor = {Cynthia K Phillips and James R Wilson},
url = {http://dx.doi.org/10.1063/1.3664981},
doi = {10.1063/1.3664981},
year = {2011},
date = {2011-12-01},
journal = {AIP Conference Proceedings},
volume = {1406},
number = {1},
pages = {301–308},
publisher = {AIP},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
J. Ongena; R. Koch; E. Lerche; F. Louche; A. I. Lyssoivan; A. Messiaen; B Schweer; D. Van Eester; M. Van Schoor; Y Altenburg; D Birus; D A Hartmann; R Wolf
IC Wall Conditioning antenna for W7-X with potential for Heating and Fast Particle Generation Journal Article
In: AIP Conference Proceedings, vol. 1406, no. 1, pp. 265–268, 2011.
@article{1403,
title = {IC Wall Conditioning antenna for W7-X with potential for Heating and Fast Particle Generation},
author = {J. Ongena and R. Koch and E. Lerche and F. Louche and A. I. Lyssoivan and A. Messiaen and B Schweer and D. Van Eester and M. Van Schoor and Y Altenburg and D Birus and D A Hartmann and R Wolf},
editor = {Cynthia K Phillips and James R Wilson},
url = {http://dx.doi.org/10.1063/1.3664974},
doi = {10.1063/1.3664974},
year = {2011},
date = {2011-12-01},
journal = {AIP Conference Proceedings},
volume = {1406},
number = {1},
pages = {265–268},
publisher = {AIP},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
E. Lerche; D. Van Eester; J. Ongena; M L Mayoral; T Johnson; T Hellsten; R Bilato; A Czarnecka; R Dumont; C Giroud; P Jacquet; V Kiptily; A Krasilnikov; M Maslov; V Vdovin; contributors
ICRF scenarios for ITER's half-field phase Journal Article
In: AIP Conference Proceedings, vol. 1406, no. 1, pp. 245–252, 2011.
@article{1398,
title = {ICRF scenarios for ITER's half-field phase},
author = {E. Lerche and D. Van Eester and J. Ongena and M L Mayoral and T Johnson and T Hellsten and R Bilato and A Czarnecka and R Dumont and C Giroud and P Jacquet and V Kiptily and A Krasilnikov and M Maslov and V Vdovin and contributors},
editor = {Cynthia K Phillips and James R Wilson},
url = {http://dx.doi.org/10.1063/1.3664970},
doi = {10.1063/1.3664970},
year = {2011},
date = {2011-12-01},
journal = {AIP Conference Proceedings},
volume = {1406},
number = {1},
pages = {245–252},
publisher = {AIP},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
L Colas; Ph; M L Mayoral; G Arnoux; V Bobkov; M Brix; M Fursdon; M Goniche; M Graham; E. Lerche; J Mailloux; I Monakhov; C Noble; J. Ongena; V Petržilka; A Sirinelli; V Riccardo; Z Vizvary; contributors
Heat loads from ICRF and LH wave absorption in the SOL: characterization on JET and implications for the ITER-Like Wall Journal Article
In: AIP Conference Proceedings, vol. 1406, no. 1, pp. 183–190, 2011.
@article{1386,
title = {Heat loads from ICRF and LH wave absorption in the SOL: characterization on JET and implications for the ITER-Like Wall},
author = {L Colas and Ph and M L Mayoral and G Arnoux and V Bobkov and M Brix and M Fursdon and M Goniche and M Graham and E. Lerche and J Mailloux and I Monakhov and C Noble and J. Ongena and V Petržilka and A Sirinelli and V Riccardo and Z Vizvary and contributors},
editor = {Cynthia K Phillips and James R Wilson},
url = {http://dx.doi.org/10.1063/1.3664957},
doi = {10.1063/1.3664957},
year = {2011},
date = {2011-12-01},
journal = {AIP Conference Proceedings},
volume = {1406},
number = {1},
pages = {183–190},
publisher = {AIP},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
E. Lerche; D. Van Eester; J. Ongena; M L Mayoral; M Laxaback; F Rimini; A Argouarch; P Beaumont; T Blackman; V Bobkov; D Brennan; A Brett; G Calabro; M Cecconello; I Coffey; L Colas; A Coyne; K. Crombé; A Czarnecka; R Dumont; F. Durodié; R Felton; D Frigione; M Gatu Johnson; C Giroud; G Gorini; M Graham; C Hellesen; T Hellsten; S Huygen; P Jacquet; T Johnson; V Kiptily; S Knipe; A Krasilnikov; P. U. Lamalle; M Lennholm; A Loarte; R Maggiora; M Maslov; A. Messiaen; D Milanesio; I Monakhov; M Nightingale; C Noble; M Nocente; L Pangioni; I Proverbio; C Sozzi; M Stamp; W Studholme; M Tardocchi; T W Versloot; V Vdovin; M. Vrancken; A Whitehurst; E Wooldridge; V Zoita
Optimizing ion-cyclotron resonance frequency heating for ITER: dedicated JET experiments Journal Article
In: Plasma Physics and Controlled Fusion, vol. 53, no. 12, pp. 124019+, 2011, ISSN: 0741-3335.
@article{1375,
title = {Optimizing ion-cyclotron resonance frequency heating for ITER: dedicated JET experiments},
author = {E. Lerche and D. Van Eester and J. Ongena and M L Mayoral and M Laxaback and F Rimini and A Argouarch and P Beaumont and T Blackman and V Bobkov and D Brennan and A Brett and G Calabro and M Cecconello and I Coffey and L Colas and A Coyne and K. Crombé and A Czarnecka and R Dumont and F. Durodié and R Felton and D Frigione and M Gatu Johnson and C Giroud and G Gorini and M Graham and C Hellesen and T Hellsten and S Huygen and P Jacquet and T Johnson and V Kiptily and S Knipe and A Krasilnikov and P. U. Lamalle and M Lennholm and A Loarte and R Maggiora and M Maslov and A. Messiaen and D Milanesio and I Monakhov and M Nightingale and C Noble and M Nocente and L Pangioni and I Proverbio and C Sozzi and M Stamp and W Studholme and M Tardocchi and T W Versloot and V Vdovin and M. Vrancken and A Whitehurst and E Wooldridge and V Zoita},
url = {http://dx.doi.org/10.1088/0741-3335/53/12/124019},
doi = {10.1088/0741-3335/53/12/124019},
issn = {0741-3335},
year = {2011},
date = {2011-12-01},
journal = {Plasma Physics and Controlled Fusion},
volume = {53},
number = {12},
pages = {124019+},
abstract = {In the past years, one of the focal points of the JET experimental programme was on ion-cyclotron resonance heating (ICRH) studies in view of the design and exploitation of the ICRH system being developed for ITER. In this brief review, some of the main achievements obtained in JET in this field during the last 5 years will be summarized. The results reported here include important aspects of a more engineering nature, such as (i) the appropriate design of the RF feeding circuits for optimal load resilient operation and (ii) the test of a compact high-power density antenna array, as well as RF physics oriented studies aiming at refining the numerical models used for predicting the performance of the ICRH system in ITER. The latter include (i) experiments designed for improving the modelling of the antenna coupling resistance under various plasma conditions and (ii) the assessment of the heating performance of ICRH scenarios to be used in the non-active operation phase of ITER.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
M. Vrancken; E. Lerche; T Blackman; F. Durodié; M. Evrard; M Graham; PH. Jacquet; Alan S Kaye; Marie-Line Mayoral; M P S Nightingale; J. Ongena; D. Van Eester; M. Van Schoor
Performance of the Scattering Matrix Arc Detection System on the JET ITER-like ICRF antenna Journal Article
In: Fusion Engineering and Design, vol. 86, no. 6-8, pp. 522, 2011, (Proceedings of the 26th Symposium of Fusion Technology (SOFT-26) - Oporto (Portugal) - 27 September/10 October 2010).
@article{1352,
title = {Performance of the Scattering Matrix Arc Detection System on the JET ITER-like ICRF antenna},
author = {M. Vrancken and E. Lerche and T Blackman and F. Durodié and M. Evrard and M Graham and PH. Jacquet and Alan S Kaye and Marie-Line Mayoral and M P S Nightingale and J. Ongena and D. Van Eester and M. Van Schoor},
url = {http://dx.doi.org/10.1016/j.fusengdes.2011.02.056},
year = {2011},
date = {2011-10-01},
journal = {Fusion Engineering and Design},
volume = {86},
number = {6-8},
pages = {522},
abstract = {Ion Cyclotron Radio Frequency (ICRF) antennas operating under high voltage to couple high power to fusion plasmas are at risk of electrical arcing. The standard Voltage Standing Wave Ratio (VSWR) system does not protect low impedance areas, which are used in antennas to achieve load tolerance to variations in plasma loading during Edge Localised Modes (ELMs). The Scattering Matrix Arc Detection System (SMAD) was designed to create additional protection for these areas, and 4 complete systems were implemented and tested on the ITER-like antenna (ILA) on JET. This paper describes the performance under relevant experimental conditions of load tolerance and/or high voltage and electrical arcing causing generator trip events.},
note = {Proceedings of the 26th Symposium of Fusion Technology (SOFT-26) - Oporto (Portugal) - 27 September/10 October 2010},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
PH. Jacquet; L Colas; Marie-Line Mayoral; G Arnoux; VL. Bobkov; M Brix; P Coad; A Czarnecka; D Dodt; F. Durodié; A Ekedahl; D Frigione; M Fursdon; E Gauthier; M Goniche; M Graham; ED. Joffrin; A Korotkov; E. Lerche; Joelle Mailloux; I Monakhov; C Noble; J. Ongena; V Petrzilka; Christophe Portafaix; F Rimini; A Sirinelli; V Riccardo; Z Vizvary; A Widdowson; K Zastrow
Heat loads on JET plasma facing components from ICRF and LH wave absorption in the SOL Journal Article
In: Nuclear Fusion, vol. 51, no. 10, pp. 103018+, 2011, (ISSN 0029-5515).
@article{1344,
title = {Heat loads on JET plasma facing components from ICRF and LH wave absorption in the SOL},
author = {PH. Jacquet and L Colas and Marie-Line Mayoral and G Arnoux and VL. Bobkov and M Brix and P Coad and A Czarnecka and D Dodt and F. Durodié and A Ekedahl and D Frigione and M Fursdon and E Gauthier and M Goniche and M Graham and ED. Joffrin and A Korotkov and E. Lerche and Joelle Mailloux and I Monakhov and C Noble and J. Ongena and V Petrzilka and Christophe Portafaix and F Rimini and A Sirinelli and V Riccardo and Z Vizvary and A Widdowson and K Zastrow},
url = {http://dx.doi.org/10.1088/0029-5515/51/10/103018},
year = {2011},
date = {2011-10-01},
journal = {Nuclear Fusion},
volume = {51},
number = {10},
pages = {103018+},
abstract = {In JET, lower hybrid (LH) and ion cyclotron resonance frequency (ICRF) wave absorption in the scrape-off layer can lead to enhanced heat fluxes on some plasma facing components (PFCs). Experiments have been carried out to characterize these heat loads in order to: (i) prepare JET operation with the Be wall which has a reduced power handling capability as compared with the carbon wall and (ii) better understand the physics driving these wave absorption phenomena and propose solutions for next generation systems to reduce them. When using ICRF, hot spots are observed on the antenna structures and on limiters close to the powered antennas and are explained by acceleration of ions in RF-rectified sheath potentials. High temperatures up to 800 $,^circ$C can be reached on locations where a deposit has built up on tile surfaces. Modelling which takes into account the fast thermal response of surface layers can reproduce well the surface temperature measurements via infrared (IR) imaging, and allow evaluation of the heat fluxes local to active ICRF antennas. The flux scales linearly with the density at the antenna radius and with the antenna voltage. Strap phasing corresponding to wave spectra with lower k values can lead to a significant increase in hot spot intensity in agreement with antenna modelling that predicts, in that case, an increase in RF sheath rectification. LH absorption in front of the antenna through electron Landau damping of the wave with high N components generates hot spots precisely located on PFCs magnetically connected to the launcher. Analysis of the LH hot spot surface temperature from IR measurements allows a quantification of the power flux along the field lines: in the worst case scenario it is in the range 15"i��??30 MW m "i��??2 . The main driving parameter is the LH power density along the horizontal rows of the launcher, the heat fluxes scaling roughly with the square of the LH power density. The local electron density in front of the grill increases with the LH launched power; this also enhances the intensity of the LH hot spots.},
note = {ISSN 0029-5515},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jorge H Belo; Philippe Bibet; Joao Bizarro; Bernard Bertrand; Roberto Cesario; Mauro Corona; Paul Finburg; Alan S Kaye; Frederic Leguern; Alain Lioure; Joelle Mailloux; Francesco Mirizzi; J. Ongena; Christophe Portafaix; Pietro Testoni; Angelo A Tuccillo; Jean-Claude Vallet; Bob Walton; Robert J Warren; David J Wilson
An ITER-relevant passive active multijunction launcher for lower hybrid current drive in JET-grade plasmas Journal Article
In: Nuclear Fusion, vol. 51, no. 8, pp. 083017+, 2011, (ISSN 0029-5515).
@article{1333,
title = {An ITER-relevant passive active multijunction launcher for lower hybrid current drive in JET-grade plasmas},
author = {Jorge H Belo and Philippe Bibet and Joao Bizarro and Bernard Bertrand and Roberto Cesario and Mauro Corona and Paul Finburg and Alan S Kaye and Frederic Leguern and Alain Lioure and Joelle Mailloux and Francesco Mirizzi and J. Ongena and Christophe Portafaix and Pietro Testoni and Angelo A Tuccillo and Jean-Claude Vallet and Bob Walton and Robert J Warren and David J Wilson},
url = {http://dx.doi.org/10.1088/0029-5515/51/8/083017},
year = {2011},
date = {2011-08-01},
journal = {Nuclear Fusion},
volume = {51},
number = {8},
pages = {083017+},
publisher = {IOP Publishing},
abstract = {Lower hybrid current drive (LHCD) has been demonstrated to be an important actuator for controlling the current profiles of advanced tokamak plasmas, either in fully non-inductive or in hybrid regimes. To continue such scenario development in JET, and most notably towards extrapolations for ITER, an upgrade of its LH launcher is required to deliver more power ($>$5 MW) and to deal with a broad array of density situations at the plasma edge more consistently. These may range from steep gradients to ELM activity; extend from as low as the cut-off density n ec to large and fast density variations and give rise to strong and rapid reflections of RF power. The passive active multijunction (PAM), advocated as the LH launcher concept for ITER, is claimed to be more resilient to such conditions, run with increased efficiency near n ec and even with a small vacuum gap, being also specially appropriate for long pulse operation"i��??all conditions hampering traditional designs. In addition, some of this leverage has been confirmed experimentally at the ITER-relevant FTU with the first PAM ever deployed, and more recently with Tore Supra's PAM. The JET version addressed in this study, with the latter focusing on the physics that drives and supports the adopted technical solutions, allows the injection of up to 5.2},
note = {ISSN 0029-5515},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A. I. Lyssoivan; R. Koch; D Douai; J. -M. Noterdaeme; V Philipps; V Rohde; F C Schüller; G Sergienko; D. Van Eester; T. Wauters; T Blackman; VL. Bobkov; S Brémond; S Brezinsek; E De Cal; R Dumont; M Garcia-Munoz; E Gauthier; M Graham; S. Jachmich; ED. Joffrin; A Kreter; P. U. Lamalle; E. Lerche; G Lombard; F. Louche; M Maslov; Marie-Line Mayoral; V Moiseenko; P Mollard; I Monakhov; J. Ongena; M. K. Paul; R A Pitts; V Plyusnin; W Suttrop; E Tsitrone; M. Van Schoor; G. Van Wassenhove; M. Vervier
ICRF physics aspects of wall conditioning with conventional antennas in large-size tokamaks Journal Article
In: Journal of Nuclear Materials, vol. 415, no. 1, pp. S1029–S1032, 2011, (Proceedings of the 19th International Conference on Plasma-Surface Interactions in Controlled Fusion "i�� San Diego (CA) (USA), May 24-28, 2010).
@article{1366,
title = {ICRF physics aspects of wall conditioning with conventional antennas in large-size tokamaks},
author = {A. I. Lyssoivan and R. Koch and D Douai and J. -M. Noterdaeme and V Philipps and V Rohde and F C Schüller and G Sergienko and D. Van Eester and T. Wauters and T Blackman and VL. Bobkov and S Brémond and S Brezinsek and E De Cal and R Dumont and M Garcia-Munoz and E Gauthier and M Graham and S. Jachmich and ED. Joffrin and A Kreter and P. U. Lamalle and E. Lerche and G Lombard and F. Louche and M Maslov and Marie-Line Mayoral and V Moiseenko and P Mollard and I Monakhov and J. Ongena and M. K. Paul and R A Pitts and V Plyusnin and W Suttrop and E Tsitrone and M. Van Schoor and G. Van Wassenhove and M. Vervier},
url = {http://dx.doi.org/10.1016/j.jnucmat.2010.11.059},
year = {2011},
date = {2011-08-01},
journal = {Journal of Nuclear Materials},
volume = {415},
number = {1},
pages = {S1029–S1032},
abstract = {This paper focuses on a study of the principal operation aspects of standard ICRF heating antennas in the ion cyclotron wall conditioning (ICWC) mode: (i) ability of the antenna to ignite the cleaning discharge safely and reliably in different gases including those most likely to be used in ITER "i��?? He, H2, D2 and their mixtures, (ii) the antenna capacity to couple a large fraction of the RF generator power ($>$50%) to low density ("i��?"i��1016"i��??1018 m"i��??3) plasmas and (iii) the RF power absorption schemes aimed at improved RF plasma homogeneity and enhanced conditioning effect. The ICWC discharge optimization in terms of RF plasma wave excitation/absorption resulted in successful simulation of the conditioning scenarios for ITER operation at full field (JET) and half-field (TEXTOR, TORE SUPRA, ASDEX Upgrade).},
note = {Proceedings of the 19th International Conference on Plasma-Surface Interactions in Controlled Fusion "i�� San Diego (CA) (USA), May 24-28, 2010},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
D Douai; A. I. Lyssoivan; V Philipps; V Rohde; T. Wauters; T Blackman; VL. Bobkov; S Brémond; S Brezinsek; F Clairet; E De Cal; T Coyne; E Gauthier; T Gerbaud; M Graham; S. Jachmich; ED. Joffrin; R. Koch; A Kreter; R Laengner; P. U. Lamalle; E. Lerche; G Lombard; M Maslov; Marie-Line Mayoral; A Miller; I Monakhov; J. -M. Noterdaeme; J. Ongena; M. K. Paul; B Pégourié; R Pitts; V Plyusnin; F C Schüller; G Sergienko; M Shimada; A Sirinelli; W Suttrop; C Sozzi; M Tsalas; E Tsitrone; B Unterberg; D. Van Eester
Recent results on Ion Cyclotron Wall Conditioning in mid and large size tokamaks Journal Article
In: Journal of Nuclear Materials, vol. 415, no. 1, pp. S1021–S1028, 2011, (Proceedings of the 19th International Conference on Plasma-Surface Interactions in Controlled Fusion "i�� San Diego (CA) (USA), May 24-28, 2010).
@article{1358,
title = {Recent results on Ion Cyclotron Wall Conditioning in mid and large size tokamaks},
author = {D Douai and A. I. Lyssoivan and V Philipps and V Rohde and T. Wauters and T Blackman and VL. Bobkov and S Brémond and S Brezinsek and F Clairet and E De Cal and T Coyne and E Gauthier and T Gerbaud and M Graham and S. Jachmich and ED. Joffrin and R. Koch and A Kreter and R Laengner and P. U. Lamalle and E. Lerche and G Lombard and M Maslov and Marie-Line Mayoral and A Miller and I Monakhov and J. -M. Noterdaeme and J. Ongena and M. K. Paul and B Pégourié and R Pitts and V Plyusnin and F C Schüller and G Sergienko and M Shimada and A Sirinelli and W Suttrop and C Sozzi and M Tsalas and E Tsitrone and B Unterberg and D. Van Eester},
url = {http://dx.doi.org/10.1016/j.jnucmat.2010.11.083},
year = {2011},
date = {2011-08-01},
journal = {Journal of Nuclear Materials},
volume = {415},
number = {1},
pages = {S1021–S1028},
abstract = {Wall conditioning techniques applicable in the presence of permanent toroidal magnetic field will be required for the operation of ITER in particular for recovery from disruptions, vent and air leak, isotopic ratio control, recycling control and mitigation of the tritium inventory build-up. Ion Cyclotron Wall Conditioning (ICWC) is one of the most promising options and has been the subject of considerable recent study on current tokamaks. This paper reports on the findings of such studies performed on European tokamaks, covering a range of plasma-facing materials: TORE SUPRA, TEXTOR, ASDEX Upgrade and JET.},
note = {Proceedings of the 19th International Conference on Plasma-Surface Interactions in Controlled Fusion "i�� San Diego (CA) (USA), May 24-28, 2010},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
V S Voitsenya; A. I. Lyssoivan; V E Moiseenko; F Castejón; V V Chechkin; D Hartmann; C Hidalgo; R. Koch; V K Pashnev; Y D Volkov; V Tereshin; I E Garkusha; U-2M; U-3M
The Present State of Investigations on Stellarators in Kharkov Journal Article
In: Plasma and Fusion Research, vol. 6, no. Special issue 1, pp. 2402024, 2011, (Special issue 1 : Papers from the 20th International Toki Conference on the next twenty years in Plasma and Fusion Science).
@article{1332,
title = {The Present State of Investigations on Stellarators in Kharkov},
author = {V S Voitsenya and A. I. Lyssoivan and V E Moiseenko and F Castejón and V V Chechkin and D Hartmann and C Hidalgo and R. Koch and V K Pashnev and Y D Volkov and V Tereshin and I E Garkusha and U-2M and U-3M},
editor = {plasma and fusion},
url = {http://www.jspf.or.jp/PFR/PFR_articles/pfr2011S1/pfr2011_06-2402024.html},
year = {2011},
date = {2011-07-01},
journal = {Plasma and Fusion Research},
volume = {6},
number = {Special issue 1},
pages = {2402024},
abstract = {At present, two stellarator type fusion devices, Uragan-2 M and Uragan-3 M, are in operation in Kharkov. At the Uragan-3 M machine, investigations of the low-density low-collisional plasma are continued. L-H-mode-like transition is studied with particular attention to the mechanisms of its formation and impact on divertor flow behaviour. For a higher density plasma, a scenario of the RF Alfv"i��n resonance heating in high k|| regime is realized both with continuous and pulsed gas injection. On Uragan-2 M the studies of RF wall conditioning are in progress. A new wall conditioning scheme which uses the high frequency slow wave is implemented. Copyright (c) 2011 The Japan Society of Plasma Science and Nuclear Fusion Research},
note = {Special issue 1 : Papers from the 20th International Toki Conference on the next twenty years in Plasma and Fusion Science},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
V Petrzilka; G Corrigan; V Fuchs; A Ekedahl; M Goniche; PH. Jacquet; Joelle Mailloux; Marie-Line Mayoral; J. Ongena; V Parail; efda
Modelling of the density modifications in front of the LH launcher during gas injection in ITER Proceedings Article
In: Europhysics Conference Abstracts, pp. P4.099, 2011, (Proceedings of the 38th EPS Conference on Plasma Physics, Strasbourg (France) - 27 June-01 July 2011).
@inproceedings{1321,
title = {Modelling of the density modifications in front of the LH launcher during gas injection in ITER},
author = {V Petrzilka and G Corrigan and V Fuchs and A Ekedahl and M Goniche and PH. Jacquet and Joelle Mailloux and Marie-Line Mayoral and J. Ongena and V Parail and efda},
year = {2011},
date = {2011-07-01},
booktitle = {Europhysics Conference Abstracts},
volume = {35},
pages = {P4.099},
note = {Proceedings of the 38th EPS Conference on Plasma Physics, Strasbourg (France) - 27 June-01 July 2011},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
A. I. Lyssoivan; D. Van Eester; R. Koch; E. Lerche; D Douai; T. Wauters; VL. Bobkov; S Brezinsek; F. Durodié; M Graham; ED. Joffrin; A Kreter; V. Kyrytsya; M Maslov; Marie-Line Mayoral; V Moiseenko; I Monakhov; J. Ongena; I Pankratov; M. K. Paul; V Philipps; R A Pitts; V Plyusnin; G Sergienko; efda
A study of RF power absorption mechanisms in JET ICWC plasmas Proceedings Article
In: Europhysics Conference Abstracts, pp. P4.060, 2011, (Proceedings of the 38th EPS Conference on Plasma Physics, Strasbourg (France) - 27 June-01 July 2011).
@inproceedings{1320,
title = {A study of RF power absorption mechanisms in JET ICWC plasmas},
author = {A. I. Lyssoivan and D. Van Eester and R. Koch and E. Lerche and D Douai and T. Wauters and VL. Bobkov and S Brezinsek and F. Durodié and M Graham and ED. Joffrin and A Kreter and V. Kyrytsya and M Maslov and Marie-Line Mayoral and V Moiseenko and I Monakhov and J. Ongena and I Pankratov and M. K. Paul and V Philipps and R A Pitts and V Plyusnin and G Sergienko and efda},
year = {2011},
date = {2011-07-01},
booktitle = {Europhysics Conference Abstracts},
volume = {35},
pages = {P4.060},
note = {Proceedings of the 38th EPS Conference on Plasma Physics, Strasbourg (France) - 27 June-01 July 2011},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
K. Crombé; Yuhong Xu; X Xu; A Bogomolov; C Giroud; Andreas Kramer-Flecken; Yungfeng Liang; J. Ongena; Y Sun; G. Van Oost; G. Verdoolaege; efda
Experimental observation of non-resonant toroidal rotation braking with a magnetic perturbation field on JET Proceedings Article
In: Europhysics Conference Abstracts, pp. P1.136, 2011, (Proceedings of the 38th EPS Conference on Plasma Physics, Strasbourg (France) - 27 June-01 July 2011).
@inproceedings{1316,
title = {Experimental observation of non-resonant toroidal rotation braking with a magnetic perturbation field on JET},
author = {K. Crombé and Yuhong Xu and X Xu and A Bogomolov and C Giroud and Andreas Kramer-Flecken and Yungfeng Liang and J. Ongena and Y Sun and G. Van Oost and G. Verdoolaege and efda},
year = {2011},
date = {2011-07-01},
booktitle = {Europhysics Conference Abstracts},
volume = {35},
pages = {P1.136},
note = {Proceedings of the 38th EPS Conference on Plasma Physics, Strasbourg (France) - 27 June-01 July 2011},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
2010
Marie-Line Mayoral; VL. Bobkov; L Colas; M Goniche; J Hosea; J G Kwak; R Pinsker; S Moriyama; Stephen J Wukitch; F Baity; S Carpentier-Chouchana; A Czarnecka; A Ekedahl; G Hanson; PH. Jacquet; P. U. Lamalle; I Monakhov; M Murakami; A Nagy; M Nightingale; J. -M. Noterdaeme; J. Ongena; P M Ryan; M. Vrancken; J R Wilson; EFDA-JET Contributors; ASDEX Upgrade; ITPA Integrated Operation Scenarios; experts; members
On Maximizing the ICRF Antenna Loading for ITER plasmas Proceedings Article
In: IOP, (Ed.): Proceedings Fusion Energy 2010, pp. ITR/P1-11, 2010, (Presented at the 23rd IAEA Fusion Energy Conference, 11-16 October 2010, Daejon (Rep. of Korea)).
@inproceedings{1288,
title = {On Maximizing the ICRF Antenna Loading for ITER plasmas},
author = {Marie-Line Mayoral and VL. Bobkov and L Colas and M Goniche and J Hosea and J G Kwak and R Pinsker and S Moriyama and Stephen J Wukitch and F Baity and S Carpentier-Chouchana and A Czarnecka and A Ekedahl and G Hanson and PH. Jacquet and P. U. Lamalle and I Monakhov and M Murakami and A Nagy and M Nightingale and J. -M. Noterdaeme and J. Ongena and P M Ryan and M. Vrancken and J R Wilson and EFDA-JET Contributors and ASDEX Upgrade and ITPA Integrated Operation Scenarios and experts and members},
editor = {IOP},
year = {2010},
date = {2010-10-01},
booktitle = {Proceedings Fusion Energy 2010},
volume = {IAEA-CN-180},
pages = {ITR/P1-11},
note = {Presented at the 23rd IAEA Fusion Energy Conference, 11-16 October 2010, Daejon (Rep. of Korea)},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
D Douai; A. I. Lyssoivan; V Philipps; V Rohde; T. Wauters; T Blackman; VL. Bobkov; S Br"i��mond; S Brezinsek; E De Cal; T Coyne; E Gauthier; M Graham; S. Jachmich; ED. Joffrin; A Kreter; P. U. Lamalle; E. Lerche; G Lombard; M Maslov; Marie-Line Mayoral; A Miller; I Monakhov; J. -M. Noterdaeme; J. Ongena; M. K. Paul; B P"i��gouri"i��; R Pitts; V Plyusnin; F C Sch"i��ller; G Sergienko; M Shimada; W Suttrop; C Sozzi; M Tsalas; E Tsitrone; D. Van Eester; M. Vervier; TORE SUPRA Team; TEXTOR Team; ASDEX Upgrade Team; efda
Recent Results on ICRF Assisted Wall Conditioning in Mid and Large Size Tokamaks Proceedings Article
In: IOP, (Ed.): Proceedings Fusion Energy 2010, pp. FTP/P1-26, 2010, (Presented at the 23rd IAEA Fusion Energy Conference, 11-16 October 2010, Daejon (Rep. of Korea)).
@inproceedings{1286,
title = {Recent Results on ICRF Assisted Wall Conditioning in Mid and Large Size Tokamaks},
author = {D Douai and A. I. Lyssoivan and V Philipps and V Rohde and T. Wauters and T Blackman and VL. Bobkov and S Br"i��mond and S Brezinsek and E De Cal and T Coyne and E Gauthier and M Graham and S. Jachmich and ED. Joffrin and A Kreter and P. U. Lamalle and E. Lerche and G Lombard and M Maslov and Marie-Line Mayoral and A Miller and I Monakhov and J. -M. Noterdaeme and J. Ongena and M. K. Paul and B P"i��gouri"i�� and R Pitts and V Plyusnin and F C Sch"i��ller and G Sergienko and M Shimada and W Suttrop and C Sozzi and M Tsalas and E Tsitrone and D. Van Eester and M. Vervier and TORE SUPRA Team and TEXTOR Team and ASDEX Upgrade Team and efda},
editor = {IOP},
year = {2010},
date = {2010-10-01},
booktitle = {Proceedings Fusion Energy 2010},
volume = {IAEA-CN-180},
pages = {FTP/P1-26},
note = {Presented at the 23rd IAEA Fusion Energy Conference, 11-16 October 2010, Daejon (Rep. of Korea)},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
PH. Jacquet; L Colas; Marie-Line Mayoral; G Arnoux; VL. Bobkov; M Brix; A Czarnecka; D Dodt; F. Durodié; A Ekedahl; D Frigione; M Fursdon; E Gauthier; M Goniche; M Graham; ED. Joffrin; A Korotkov; E. Lerche; Joelle Mailloux; I Monakhov; J. Ongena; V Petrzilka; F Rimini; A Sirinelli; Christophe Portafaix; V Riccardo; Z Vizvary; K Zastrow; efda
Heat-loads on JET Plasma Facing Components from ICRF and LH Wave Absorption in the Scrape-Off-Layer Proceedings Article
In: IOP, (Ed.): Proceedings Fusion Energy 2010, pp. EXW/P7-32, 2010, (Presented at the 23rd IAEA Fusion Energy Conference, 11-16 October 2010, Daejon (Rep. of Korea)).
@inproceedings{1282,
title = {Heat-loads on JET Plasma Facing Components from ICRF and LH Wave Absorption in the Scrape-Off-Layer},
author = {PH. Jacquet and L Colas and Marie-Line Mayoral and G Arnoux and VL. Bobkov and M Brix and A Czarnecka and D Dodt and F. Durodié and A Ekedahl and D Frigione and M Fursdon and E Gauthier and M Goniche and M Graham and ED. Joffrin and A Korotkov and E. Lerche and Joelle Mailloux and I Monakhov and J. Ongena and V Petrzilka and F Rimini and A Sirinelli and Christophe Portafaix and V Riccardo and Z Vizvary and K Zastrow and efda},
editor = {IOP},
year = {2010},
date = {2010-10-01},
booktitle = {Proceedings Fusion Energy 2010},
volume = {IAEA-CN-180},
pages = {EXW/P7-32},
note = {Presented at the 23rd IAEA Fusion Energy Conference, 11-16 October 2010, Daejon (Rep. of Korea)},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
F. Durodié; I Monakhov; M Nightingale; Marie-Line Mayoral; Arnaud Argouarch; G Berger-By; T Blackman; V Cocilovo; A Czarnecka; S Dowson; D Frigione; R Goulding; M Graham; J Hobirk; S Huygen; S. Jachmich; PH. Jacquet; E. Lerche; TH. Loarer; R Maggiora; A. Messiaen; D Milanesio; M Nave; J. Ongena; F Rimini; H Sheikh; C Sozzi; M Tsalas; D. Van Eester; M. Vrancken; A Whitehurst; E Wooldridge; K Zastrow; efda
Latest Achievements of the JET ICRF Systems in View of ITER Proceedings Article
In: IOP, (Ed.): Proceedings Fusion Energy 2010, pp. EXW/P7-04, 2010, (Presented at the 23rd IAEA Fusion Energy Conference, 11-16 October 2010, Daejon (Rep. of Korea)).
@inproceedings{1279,
title = {Latest Achievements of the JET ICRF Systems in View of ITER},
author = {F. Durodié and I Monakhov and M Nightingale and Marie-Line Mayoral and Arnaud Argouarch and G Berger-By and T Blackman and V Cocilovo and A Czarnecka and S Dowson and D Frigione and R Goulding and M Graham and J Hobirk and S Huygen and S. Jachmich and PH. Jacquet and E. Lerche and TH. Loarer and R Maggiora and A. Messiaen and D Milanesio and M Nave and J. Ongena and F Rimini and H Sheikh and C Sozzi and M Tsalas and D. Van Eester and M. Vrancken and A Whitehurst and E Wooldridge and K Zastrow and efda},
editor = {IOP},
year = {2010},
date = {2010-10-01},
booktitle = {Proceedings Fusion Energy 2010},
volume = {IAEA-CN-180},
pages = {EXW/P7-04},
note = {Presented at the 23rd IAEA Fusion Energy Conference, 11-16 October 2010, Daejon (Rep. of Korea)},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
E. Lerche; D. Van Eester; T Johnson; T Hellsten; J. Ongena; Marie-Line Mayoral; D Frigione; C Sozzi; G Calabro; M Lennholm; P Beaumont; T Blackman; D Brennan; A Brett; M Cecconello; I Coffey; A Coyne; K. Crombé; A Czarnecka; R Felton; C Giroud; M Gatu; G Gorini; C Hellesen; PH. Jacquet; V Kiptily; S Knipe; A Krasilnikov; M Maslov; A. Messiaen; I Monakhov; C Noble; M Nocente; L Pangioni; I Proverbio; M Stamp; W Studholme; M Tardocchi; T Versloot; V Vdovin; A Whitehurst; E Wooldridge; V L Zoita; efda
Potential of the ICRF heating schemes foreseen for ITER"i��s half-field Hydrogen phase Proceedings Article
In: IOP, (Ed.): Proceedings Fusion Energy 2010, pp. THW/P2-03, 2010, (Presented at the 23rd IAEA Fusion Energy Conference, 11-16 October 2010, Daejon (Rep. of Korea)).
@inproceedings{1275,
title = {Potential of the ICRF heating schemes foreseen for ITER"i��s half-field Hydrogen phase},
author = {E. Lerche and D. Van Eester and T Johnson and T Hellsten and J. Ongena and Marie-Line Mayoral and D Frigione and C Sozzi and G Calabro and M Lennholm and P Beaumont and T Blackman and D Brennan and A Brett and M Cecconello and I Coffey and A Coyne and K. Crombé and A Czarnecka and R Felton and C Giroud and M Gatu and G Gorini and C Hellesen and PH. Jacquet and V Kiptily and S Knipe and A Krasilnikov and M Maslov and A. Messiaen and I Monakhov and C Noble and M Nocente and L Pangioni and I Proverbio and M Stamp and W Studholme and M Tardocchi and T Versloot and V Vdovin and A Whitehurst and E Wooldridge and V L Zoita and efda},
editor = {IOP},
year = {2010},
date = {2010-10-01},
booktitle = {Proceedings Fusion Energy 2010},
volume = {IAEA-CN-180},
pages = {THW/P2-03},
note = {Presented at the 23rd IAEA Fusion Energy Conference, 11-16 October 2010, Daejon (Rep. of Korea)},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
M Nave; T Johnson; L -G Eriksson; K. Crombé; C Giroud; Marie-Line Mayoral; J. Ongena; A Salmi; T Tala; M Tsalas
Influence of Magnetic Field Ripple on the Intrinsic Rotation of Tokamak Plasmas Journal Article
In: Physical Review Letters, vol. 105, no. 10, pp. 105005+, 2010.
@article{1253,
title = {Influence of Magnetic Field Ripple on the Intrinsic Rotation of Tokamak Plasmas},
author = {M Nave and T Johnson and L -G Eriksson and K. Crombé and C Giroud and Marie-Line Mayoral and J. Ongena and A Salmi and T Tala and M Tsalas},
url = {http://dx.doi.org/10.1103/PhysRevLett.105.105005},
year = {2010},
date = {2010-09-01},
journal = {Physical Review Letters},
volume = {105},
number = {10},
pages = {105005+},
publisher = {American Physical Society},
abstract = {Using the unique capability of JET to monotonically change the amplitude of the magnetic field ripple, without modifying other relevant equilibrium conditions, the effect of the ripple on the angular rotation frequency of the plasma column was investigated under the conditions of no external momentum input. The ripple amplitude was varied from 0.08% to 1.5% in Ohmic and ion-cyclotron radio-frequency (ICRF) heated plasmas. In both cases the ripple causes counterrotation, indicating a strong torque due to nonambipolar transport of thermal ions and in the case of ICRF also fast ions.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
K K Kirov; Yu Baranov; Joelle Mailloux; Marie-Line Mayoral; M Nave; J. Ongena
LH power deposition and CD efficiency studies by application of modulated power at JET Journal Article
In: Nuclear Fusion, vol. 50, no. 7, pp. 075003+, 2010, (ISSN 0029-5515).
@article{1265,
title = {LH power deposition and CD efficiency studies by application of modulated power at JET},
author = {K K Kirov and Yu Baranov and Joelle Mailloux and Marie-Line Mayoral and M Nave and J. Ongena},
url = {http://dx.doi.org/10.1088/0029-5515/50/7/075003},
year = {2010},
date = {2010-07-01},
journal = {Nuclear Fusion},
volume = {50},
number = {7},
pages = {075003+},
publisher = {IOP Publishing},
abstract = {The lower hybrid (LH) power deposition and the current drive (CD) efficiency were assessed by the application of modulated LH power. Density and magnetic field scans were performed and the response of the electron temperature provided by the available electron cyclotron emission diagnostic was investigated by means of fast Fourier transform analysis. An innovative technique based on a comparison between modelled and experimental data was developed and used in the study. The LH waves are absorbed by fast electrons with energies of a few times the thermal one, causing a modification in the electron distribution function (EDF) by creating a plateau in the parallel direction. The phase of the temperature perturbations, , as well as the ratio between the amplitudes of the third and the main harmonics, � T e3 /� T e1 , are found to be strongly affected by the plateau of the EDF as the broader the plateau the larger | |, ( $<$ 0), and the smaller � T e3 /� T e1 are. Transport and Fokker"i��??Planck modelling was used to support this conclusion as well as to interpret the experimental data and hence to assess the LHCD efficiency and deposition profile. The results from the analysis are consistent with broad off-axis LH power deposition profile. For densities between 1 "i��? 10 19 and 4 "i��? 10 19 m "i��??3 , which is the accessibility limit at the highest magnetic field discharges, a gradual shift of the maximum of the power deposition to the periphery and a degradation of the CD efficiency was observed.},
note = {ISSN 0029-5515},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
A Czarnecka; VL. Bobkov; I Coffey; L Colas; A Figueiredo; PH. Jacquet; K D Lawson; E. Lerche; Marie-Line Mayoral; I Monakhov; J. Ongena; D. Van Eester; K Zastrow; efda
Impurity production by the ICRF antennas in JET Proceedings Article
In: Europhysics Conference Abstracts, pp. P5.147, 2010, (37th EPS Conference on Plasma Physics, Dublin (Ireland) - 21-25 June 2010).
@inproceedings{1268,
title = {Impurity production by the ICRF antennas in JET},
author = {A Czarnecka and VL. Bobkov and I Coffey and L Colas and A Figueiredo and PH. Jacquet and K D Lawson and E. Lerche and Marie-Line Mayoral and I Monakhov and J. Ongena and D. Van Eester and K Zastrow and efda},
year = {2010},
date = {2010-06-01},
booktitle = {Europhysics Conference Abstracts},
volume = {34},
pages = {P5.147},
note = {37th EPS Conference on Plasma Physics, Dublin (Ireland) - 21-25 June 2010},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
D. Van Eester; E. Lerche; T Johnson; T Hellsten; J. Ongena; Marie-Line Mayoral; D Frigione; C Sozzi; G Calabro; M Lennholm; P Beaumont; T Blackman; D Brennan; A Brett; M Cecconello; I Coffey; A Coyne; K. Crombé; A Czarnecka; R Felton; M Gatu Johnson; C Giroud; G Gorini; C Hellesen; PH. Jacquet; Y. O. Kazakov; V Kiptily; S Knipe; A Krasilnikov; Y Lin; M Maslov; I Monakhov; C Noble; M Nocente; L Pangioni; I Proverbio; M Stamp; W Studholme; M Tardocchi; T W Versloot; V Vdovin; A Whitehurst; E Wooldridge; V L Zoita; efda
Mode conversion heating in JET plasmas with multiple mode conversion layers Proceedings Article
In: Europhysics Conference Abstracts, pp. P5.163, 2010, (37th EPS Conference on Plasma Physics, Dublin (Ireland) - 21-25 June 2010).
@inproceedings{1262,
title = {Mode conversion heating in JET plasmas with multiple mode conversion layers},
author = {D. Van Eester and E. Lerche and T Johnson and T Hellsten and J. Ongena and Marie-Line Mayoral and D Frigione and C Sozzi and G Calabro and M Lennholm and P Beaumont and T Blackman and D Brennan and A Brett and M Cecconello and I Coffey and A Coyne and K. Crombé and A Czarnecka and R Felton and M Gatu Johnson and C Giroud and G Gorini and C Hellesen and PH. Jacquet and Y. O. Kazakov and V Kiptily and S Knipe and A Krasilnikov and Y Lin and M Maslov and I Monakhov and C Noble and M Nocente and L Pangioni and I Proverbio and M Stamp and W Studholme and M Tardocchi and T W Versloot and V Vdovin and A Whitehurst and E Wooldridge and V L Zoita and efda},
year = {2010},
date = {2010-06-01},
booktitle = {Europhysics Conference Abstracts},
volume = {34},
pages = {P5.163},
note = {37th EPS Conference on Plasma Physics, Dublin (Ireland) - 21-25 June 2010},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
R I Pinsker; Marie-Line Mayoral; VL. Bobkov; M Goniche; J C Hosea; Stephen J Wukitch; S Moriyama; F Baity; L Colas; F. Durodié; A Ekedahl; G R Hanson; PH. Jacquet; P. U. Lamalle; I Monakhov; M Murakami; A Nagy; M Nightingale; J. -M. Noterdaeme; J. Ongena; M Porkolab; P M Ryan; M. Vrancken; J R Wilson; Asdex-Upgrade Team
Experiments on gas puffing to enhance ICRF antenna coupling Proceedings Article
In: Europhysics Conference Abstracts, pp. O4.124, 2010, (37th EPS Conference on Plasma Physics, Dublin (Ireland) - 21-25 June 2010).
@inproceedings{1259,
title = {Experiments on gas puffing to enhance ICRF antenna coupling},
author = {R I Pinsker and Marie-Line Mayoral and VL. Bobkov and M Goniche and J C Hosea and Stephen J Wukitch and S Moriyama and F Baity and L Colas and F. Durodié and A Ekedahl and G R Hanson and PH. Jacquet and P. U. Lamalle and I Monakhov and M Murakami and A Nagy and M Nightingale and J. -M. Noterdaeme and J. Ongena and M Porkolab and P M Ryan and M. Vrancken and J R Wilson and Asdex-Upgrade Team},
year = {2010},
date = {2010-06-01},
booktitle = {Europhysics Conference Abstracts},
volume = {34},
pages = {O4.124},
note = {37th EPS Conference on Plasma Physics, Dublin (Ireland) - 21-25 June 2010},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}