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| 引用本文： | 竹锦霞,段卓琦,朱俊,方达,陈忠勇. ���HT-7�ŵ�ƽ���ε��������ܶȶ����ݵ��ӵ�Ӱ��[J]. 核聚变与等离子体物理, 2012, 32(3): 213-217 |
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| 作者姓名： | 竹锦霞 段卓琦 朱俊 方达 陈忠勇 |
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| 作者单位： | (1. ??????????????????????????? 635000??2. ?????????????????????????????? 650092) |
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| 基金项目： | ITER国内配套研究专项，教育部科学技术研究重点项目，国家自然科学研究基金，云南省教育厅科学研究基金项目 |
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| 摘 要： | 利用硬X射线探测系统监测HT-7托卡马克装置中逃逸电子轰击到装置第一壁材料时所产生的高能硬X射线,研究了在放电平顶阶段提高等离子体密度对逃逸电子行为的影响。实验结果表明,通过提高放电平顶阶段等离子体密度,HXR强度迅速降到很低的水平,这意味着能有效减少这个阶段形成的逃逸电子的数目及能量。
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| 关 键 词： | 逃逸电子 等离子体密度 硬X射线 |
Reducing of runaway electrons by increasing plasma density on HT-7 tokamak |
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| ZHU Jin-xia , DUAN Zhuo-qi , ZU Jun , FANG Da , CHEN Zhong-yong. Reducing of runaway electrons by increasing plasma density on HT-7 tokamak[J]. Nuclear Fusion and Plasma Physics, 2012, 32(3): 213-217 |
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| Authors: | ZHU Jin-xia DUAN Zhuo-qi ZU Jun FANG Da CHEN Zhong-yong |
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| Affiliation: | (1. Department of Physics and Engineering Technology,Sichuan Academy of Arts and Sciences, Dazhou 635000;2. College of Physics and Electronic Information, Yunnan Normal University, Kunming 650092) |
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| Abstract: | Using the hard X-ray(HXR) detection system during the current flat-top phase of ohmic discharge in the HT-7 tokamak,the behaviour of runaway electrons has been studied by means of measuring the HXR produced by the runaway electrons bombarding the first wall material.During plasma density increasing at the phase,we found that HXR intensity is reduced rapidly to a very low level,which implicated that the amount and energy of runaway electrons might be reduced effectively by increasing plasma density at the current flat-top phase. |
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| Keywords: | Runaway electrons Plasma density Hard X-ray |
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