首页 | 本学科首页   官方微博 | 高级检索  
     


Experimental study on fast electron generation during internal crash
Authors:Chaowei MAI  Liqun HU  Liqing XU  Zhengping LUO  Shiyao LIN  Yiping CHEN  EAST Team
Abstract:Hard x-ray (HXR) burst is found during internal crash in the flat top current stage of experimental advanced superconducting tokamak (EAST) discharges and it is caused by fast electrons.The generated electrons during internal crashes may be an operational safety issue in advanced tokamaks.During an internal crash,locations of fast electron generation from HXR evolution agree with areas of magnetic reconnection from soft x-ray (SXR) tomographic reconstruction.Further statistical analyses show a 27 μs time difference between SXR crashes and HXR bursts,and the agreement between time broadening of HXR bursts and estimated characteristic time of magnetic reconnection in EAST.The magnetic reconnections during internal crash are proved to generate fast electrons,by both spatial and temporal agreements.
Keywords:EAST  internal crash  fast electron  magnetic reconnection
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号