Lower hybrid current drive experiments with different launched wave frequencies in the EAST tokamak
Lower hybrid current drive experiments with different launched wave frequencies in the EAST tokamak
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EAST托卡马克中不同发射波频率的低混合电流驱动实验
DOI：
10.1063/1.4965904
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发表时间：
2016-10
影响因子：
2.2
通讯作者：
EAST Team
中科院分区：
文献类型：
--
作者：
Ekedahl, A.;Hillairet, J.;Goniche, M.;EAST Team
EAST配备了两个高功率低混合电流驱动（LHCD）系统，工作频率分别为2.45 GHz和4.6 GHz。首次在相同等离子体条件下进行了两种不同频率的LHCD对比实验。结果发现，4.6 GHz LH 波的电流驱动 (CD) 效率和等离子体加热效果比 2.45 GHz 的要好得多。在 EAST 中已经获得了以 4.6 GHz LHCD 作为唯一辅助加热源的高约束模式（H 模式）放电，并且约束比之前 2.45 GHz 产生的放电更高。使用 C3PO/LUKE 代码进行射线追踪和 Fokker-Planck 计算的组合，以解释两种波之间不同的实验观察结果。此外，还使用射频探头测量了两个 LH 波工作频率的频谱展宽。
EAST has been equipped with two high power lower hybrid current drive (LHCD) systems with operating frequencies of 2.45 GHz and 4.6 GHz. Comparative LHCD experiments with the two different frequencies were performed in the same conditions of plasma for the first time. It was found that current drive (CD) efficiency and plasma heating effect are much better for 4.6 GHz LH waves than for the one with 2.45 GHz. High confinement mode (H-mode) discharges with 4.6 GHz LHCD as the sole auxiliary heating source have been obtained in EAST and the confinement is higher with respect to that produced previously by 2.45 GHz. A combination of ray-tracing and Fokker-Planck calculations by using the C3PO/LUKE codes was performed in order to explain the different experimental observations between the two waves. In addition, the frequency spectral broadening of the two LH wave operating frequencies was surveyed by using a radio frequency probe.
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影响因子：
3.3
作者：
M. Brambilla
通讯作者：
M. Brambilla
影响因子：
8.6
作者：
N. Fisch;A. Boozer
通讯作者：
N. Fisch;A. Boozer
影响因子：
3.3
作者：
G. Hoang;A. Becoulet;J. Artaud;G. Berger-by;J. Decker;L. Delpech;A. Ekedahl;Jmv Garcia;G. Giruzzi;M. Goniche;D. Guilhem;J. Hillairet;F. Imbeaux;X. Litaudon;R. Magne;Y. Peysson;M. Schneider;J. Jacquinot;Y. Bae;B. Beaumont;J. Belo;J. Bizarro;P. Bonoli;M. Cho;F. Kazarian;C. Kessel;S. H. Kim;J. Kwak;J. Jeong;J. B. Lister;S. Milora;F. Mirizzi;R. Maggiora;D. Milanesio;W. Namkung;J. Noterdaeme;Seungil Park;R. Parker;David A Rasmussen;P. K. Sharma;A. Tanga;A. Tuccillo;Yuanxi Wan
通讯作者：
G. Hoang;A. Becoulet;J. Artaud;G. Berger-by;J. Decker;L. Delpech;A. Ekedahl;Jmv Garcia;G. Giruzzi;M. Goniche;D. Guilhem;J. Hillairet;F. Imbeaux;X. Litaudon;R. Magne;Y. Peysson;M. Schneider;J. Jacquinot;Y. Bae;B. Beaumont;J. Belo;J. Bizarro;P. Bonoli;M. Cho;F. Kazarian;C. Kessel;S. H. Kim;J. Kwak;J. Jeong;J. B. Lister;S. Milora;F. Mirizzi;R. Maggiora;D. Milanesio;W. Namkung;J. Noterdaeme;Seungil Park;R. Parker;David A Rasmussen;P. K. Sharma;A. Tanga;A. Tuccillo;Yuanxi Wan
影响因子：
2.2
作者：
Y. Peysson;Joan Decker;Lorenzo Morini
通讯作者：
Y. Peysson;Joan Decker;Lorenzo Morini
影响因子：
3.3
作者：
M. Goniche;V. Basiuk;J. Decker;P. K. Sharma;G. Antar;G. Berger-by;F. Clairet;L. Delpech;A. Ekedahl;J. Gunn;J. Hillairet;X. Litaudon;D. Mazon;E. Nilsson;T. Oosako;Y. Peysson;M. Preynas;M. Prou;J. Ségui
通讯作者：
M. Goniche;V. Basiuk;J. Decker;P. K. Sharma;G. Antar;G. Berger-by;F. Clairet;L. Delpech;A. Ekedahl;J. Gunn;J. Hillairet;X. Litaudon;D. Mazon;E. Nilsson;T. Oosako;Y. Peysson;M. Preynas;M. Prou;J. Ségui