Heating, current drive and energetic particle studies on JET in preparation of ITER operation
Heating, current drive and energetic particle studies on JET in preparation of ITER operation
复制标题
ITER 运行准备中 JET 的加热、电流驱动和高能粒子研究
DOI：
10.1088/0029-5515/43/3/306
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发表时间：
2003
期刊：
影响因子：
3.3
通讯作者：
J. Contributors
中科院分区：
文献类型：
--
作者：
J. Noterdaeme;R. Budny;A. Cardinali;C. Castaldo;R. Cesario;F. Crisanti;J. Degrassie;D. D'Ippolito;F. Durodi ;A. Ekedahl;A. Figueiredo;C. Ingesson;E. Joffrin;D. Hartmann;J. Heikkinen;T. Hellsten;T. Jones;V. Kiptily;P. Lamalle;X. Litaudon;F. Nguyen;J. Mailloux;M. Mantsinen;M. Mayoral;D. Mazon;F. Meo;I. Monakhov;J. Myra;J. Pam la;V. Pericoli;Y. Petrov;O. Sauter;Y. Sarazin;S. Sharapov;A. Tuccillo;D. V. Eester;J. Contributors
本文从加热、电流驱动和高能粒子三个方面综述了近年来JET的研究进展。这些成就扩展了JET的可能性，与ITER的运行有直接联系，并提供了新的有趣的物理学。远轴加热的等离子体的环形旋转轮廓，很少或没有加油或动量输入是中空的，功率沉积是否位于低场侧或高场侧上只有很小的差异。在LH电流驱动下，磁剪切从轻微的正向变化到负向。改进的偶联（通过使用等离子体成形和CD 4）允许内部传输屏障（ITB）等离子体中高达3.4MW的PLH，具有超过15 MW的组合NBI和ICRF加热。具有负磁剪切和ITB的q分布可以在高加热脉冲（8 s）的持续时间内保持。在JET中用ICRF产生快离子来模拟α粒子：通过使用三次谐波He-4加热，利用JET使用具有4 He的NBI和限制MeV类离子的独特能力，在120 kV下注入的He-4束被加速到2 MeV以上的能量。ICRF加热用于复制α加热的动力学，并模拟了等效Q = 10“燃烧”的控制。
This paper summarizes the recent work on JET in the three areas of heating, current drive and energetic particles. The achievements have extended the possibilities of JET, have a direct connection to ITER operation and provide new and interesting physics. Toroidal rotation profiles of plasmas heated far off axis with little or no refuelling or momentum input are hollow with only small differences on whether the power deposition is located on the low field side or on the high field side. With LH current drive the magnetic shear was varied from slightly positive to negative. The improved coupling (through the use of plasma shaping and CD4) allowed up to 3.4 MW of PLH in internal transport barrier (ITB) plasmas with more than 15 MW of combined NBI and ICRF heating. The q-profile with negative magnetic shear and the ITB could be maintained for the duration of the high heating pulse (8 s). Fast ions have been produced in JET with ICRF to simulate alpha particles: by using third harmonic He-4 heating, beam injected He-4 at 120 kV were accelerated to energies above 2 MeV taking advantage of the unique capability of JET to use NBI with 4 He and to confine MeV class ions. ICRF heating was used to replicate the dynamics of alpha heating and the control of an equivalent Q = 10 `burn' was simulated.