HL-1M装置电子回旋加热过程中的超热电子测量  

Measurement of superthermal electrons during ECRH in the HL-1M tokamak

作　　者：杨进蔚[1] 张炜[1] 曾庆希[1] 

机构地区：[1]核工业西南物理研究院,成都610041

出　　处：《核聚变与等离子体物理》2004年第1期7-10,共4页Nuclear Fusion and Plasma Physics

摘　　要：在HL 1M托卡马克上进行的电子回旋共振加热实验表明,在低等离子体密度加热过程中,产生大量的超热电子。由Si(Li)和碘化汞(HgI2)半导体探测器阵列测量到的软X射线和中能(15～150keV)X射线能谱,得到超热电子的温度在30～60keV范围内。中能X射线辐射强度测量结果证实,等离子体对电子回旋波的吸收是定域性的。在超热电子对MHD的相互作用中,主要的m n=2 1模没有增强或抑制现象。Experimental results of electron cyclotron resonant heating in the HL-1M tokamak show that a large number of superthermal electrons appear during ECRH. From the spectra of soft X-rays and medium energy X-rays in the energy range of 15～150keV, measured with a Si(Li) drift detector and array of HgI_2 semi-conductor detectors, the temperature of superthermal electrons is in the range of 30～60keV, up 30%～40% during ECRH. Measurement results of X-ray flux indicate that the deposition of energy of ECRH is local, and the superthermal electrons have no effect on the mode of MHD.

关 键 词：HL-1M装置 高能物理实验 电子回旋共振加热 超热电子 碘化汞半导体探测器阵列 X射线辐射 撕裂模 

分 类 号：O572.211[理学—粒子物理与原子核物理]