| Avalanche Phenomenon of Superthermal Electrons Measured by SDD with New SPHA during ECRH |
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| 作者姓名： | 杨进蔚 张轶泼 廖敏 胡立群 李旭 宋先瑛 林士耀 李永革 罗萃支 陈燎原 饶军 杨青巍 |
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| 作者单位： | [1]Southwestern Institute of Physics, PO Box 432, Chengdu 610041 [2]Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10675124 and 10775041. Authors wish to thank the team of HL-2A operation, the group of ECRH, the group of ECE and the team of experimental data acquirement. |
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| 摘 要： | Two high performance silicon drift detectors （SDD） are installed at the equatorial port with z = 0 and z = -16.4 cm on HL-2A tokamak, respectively. These SDDs combine with the new and non-conventional software pulse height analyser （SPHA ） successfully developed more recently by us to measure the time evolution of soft x-rays spectra, the thermal and superthermal electron temperatures. The high-quality three-dimensional figure of time evolution for soft x-rays energy spectra is easily obtained by combination of a new SPHA and computer. Therefore, the measurement accuracies and the time resolutions of thermal and superthermal electron temperatures are also improved. The enhancement phenomenon of superthermal electron during electron cyclotron resonance heating （ECRH） can be explained by the combination of superthermal electron avalanche theory and experimental parameters.
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| 关 键 词： | 超热电子 雪崩现象 软件分析 脉冲 |
| 收稿时间： | 2007-09-25 |
Avalanche Phenomenon of Superthermal Electrons Measured by SDD with New SPHA during ECRH |
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| YANG Jin-Wei,ZHANG Yi-Po,LIAO Min,HU Li-Qun,LI Xu,SONG Xian-Ying,LIN Shi-Yao,LI Yong-Ge,LUO Cui-Wen,CHEN Liao-Yuan,RAO Jun,YANG Qing-Wei.Avalanche Phenomenon of Superthermal Electrons Measured by SDD with New SPHA during ECRH[J].Chinese Physics Letters,2008,25(3):1022-1025. |
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| Authors: | YANG Jin-Wei ZHANG Yi-Po LIAO Min HU Li-Qun LI Xu SONG Xian-Ying LIN Shi-Yao LI Yong-Ge LUO Cui-Wen CHEN Liao-Yuan RAO Jun YANG Qing-Wei |
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| Affiliation: | Southwestern Institute of Physics, PO Box 432, Chengdu 610041Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 |
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| Abstract: | Two high performance silicon drift detectors (SDD) are installed at the equatorial port with z=0 and z= -16.4cm on HL-2A tokamak, respectively. These SDDs combine with the new and non-conventional software pulse height analyser (SPHA) successfully developed more recently by us to measure the time evolution of soft x-rays spectra, the thermal and superthermal electron temperatures. The high-quality three-dimensional figure of time evolution for soft x-rays energy spectra is easily obtained bycombination of a new SPHA and computer. Therefore, the measurementaccuracies and the time resolutions of thermal and superthermal electron temperatures are also improved. The enhancement phenomenon of superthermal electron during electron cyclotron resonance heating (ECRH) can be explained by the combination of superthermal electron avalanche theory and experimental parameters. |
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| Keywords: | 52 50 Sw 52 70 La 52 70 -m |
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