Abstract: 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 HgI₂ semi-conductor detectors,the temper-ature 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．

Key words: ECRH, Superthermal electron, Array of HgI₂

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。

关键词: 电子回旋共振加热, 超热电子, 碘化汞半导体探测器阵列