arXivDaily arXiv每日学术速递 周一至周五更新
arXiv physics/0410112physics.plasm-ph
收藏

圆柱形ECR等离子体系统中由X-B模式转换引起的等离子体加热

Plasma heating due to X-B mode conversion in a cylindrical ECR plasma system

Vipin K. Yadav, D. Bora

摘要:

在回旋共振加热等离子体的过程中,上混合共振层附近的X模向伯恩斯坦波的转换起着重要的作用。在环形磁聚变装置的电子回旋共振(ECR)加热实验中,观察到了超高功率下的波产生和高功率下的参量衰减。利用一个带有ECR和UHR层的小型线性系统,进行了X-B转换和参量衰变过程随系统参数变化的实验。进行直接探测{ \em in situ},并通过软X射线发射测量证明等离子体加热。实验是在$10^{-3}$ mbar压力下用160-800 W微波功率在2.45 GHz的工作频率下产生的氢等离子体进行的。ECR所需的轴向磁场使得谐振表面(B = 875 G)位于等离子体系统的几何轴处。实验结果将在论文中给出。

英文摘要:

Extra Ordinary (X) mode conversion to Bernstein wave near Upper Hybrid Resonance (UHR) layer plays an important role in plasma heating through cyclotron resonance. Wave generation at UHR and parametric decay at high power has been observed during Electron Cyclotron Resonance (ECR) heating experiments in toroidal magnetic fusion devices. A small linear system with ECR and UHR layer within the system has been used to conduct experiments on X-B conversion and parametric decay process as a function of system parameters. Direct probing {\em in situ} is conducted and plasma heating is evidenced by soft x-ray emission measurement. Experiments are performed with hydrogen plasma produced with 160-800 W microwave power at 2.45 GHz of operating frequency at $10^{-3}$ mbar pressure. The axial magnetic field required for ECR is such that the resonant surface (B = 875 G) is situated at the geometrical axis of the plasma system. Experimental results will be presented in the paper.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑