| 弗里曼源热阴极弧放电在高温下应用中的几个问题 |
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| 引用本文： | 郑思孝,廖小东,孙官清,刘仲阳,王培录,杨兴富. 弗里曼源热阴极弧放电在高温下应用中的几个问题[J]. 核技术, 1999, 22(2): geMap1 |
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| 作者姓名： | 郑思孝 廖小东 孙官清 刘仲阳 王培录 杨兴富 |
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| 作者单位： | 四川大学原子核科学技术研究所,辐射物理与技术国家教委开放实验室,成都,610064 |
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| 摘 要： | 介绍弗里曼源在典型气体流量下弧室内、源缝口侧、引出缝口后３００ｍｍ处和监控处的真 空度间的关系,纯灯丝热和弧放电热引起的弧室内壁、料炉末端的温升分布特性,以及微渗水 蒸汽使高温灯丝氧化对放电特性的影响。同时研究了几种特殊气体放电的氦离子辅助以及灯丝 电极夹下垂引起的灯丝外短路问题。
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| 关 键 词： | 弗里曼离子源 引出区 弧放电 灯丝氧化 |
| 修稿时间： | 1997-11-2 |
Several problems of Freeman source worked at high temperature with heated cathod and arc discharge |
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| ZHENG Sixiao,LIAO Xiaodong,SUN Guanqing,LIU Zhongyang,WANG Peilu,YANG Xingfu. Several problems of Freeman source worked at high temperature with heated cathod and arc discharge[J]. Nuclear Techniques, 1999, 22(2): geMap1 |
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| Authors: | ZHENG Sixiao LIAO Xiaodong SUN Guanqing LIU Zhongyang WANG Peilu YANG Xingfu |
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| Abstract: | The vacuums in the arc chamber,the extracted region and the control positions of the Freeman source at typical gas-rates were measured.The temperature-raising distributions at the arc-charmber's wall and the oven end heated by the filament and arc discharge were obtained. The effect on discharge properties of the filament oxidation caused by micro-leakage of water vapour,and the effect of Ar+-assisted discharge on outside short circuit of the filament are discussed. |
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| Keywords: | Freeman ion source Extracted region Arc discharge Filament Oxidation |
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