Lower hybrid current drive at high density on Tore Supra
Lower hybrid current drive at high density on Tore Supra
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DOI：
10.1088/0029-5515/53/3/033010
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发表时间：
2013-03
期刊：
影响因子：
3.3
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
中科院分区：
文献类型：
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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
在TORE超级托卡马克上进行了线平均密度在1.5×10~(19)~6×10~(19)m−~3范围内变化的低杂波电流驱动实验。从快电子韧致辐射(FEB)和电子回旋发射(ECES)两个方面分析了LHCD效率。等离子体平衡和粒子加注的影响被记录在案。结果表明，FEB随等离子体密度的快速衰减与电流驱动效率和FEB的简单定标是一致的。给出了等离子体边缘测量结果，以寻找其对快电子发射的影响。在粒子燃料的特殊情况下，硬X射线和欧洲经委会信号的异常衰减表明该波与边缘等离子体的有害相互作用。
Lower hybrid current drive (LHCD) experiments with line-averaged density varying between 1.5 × 1019 and 6 × 1019 m−3 are performed on the Tore Supra tokamak under quasi-steady-state conditions with respect to the fast electron dynamics. The LHCD efficiency is analysed from the fast electron bremsstrahlung (FEB) and electron cyclotron emission (ECE). The effect of plasma equilibrium and particle fuelling is documented. It is concluded that the fast decay of FEB with plasma density could be consistent with simple scaling of the current drive efficiency and FEB. Plasma edge measurements are presented looking for the effect on fast electron emission. In a specific case of particle fuelling, an anomalous decay of the hard x-ray and ECE signals suggests deleterious interaction of the wave with edge plasma.