石墨非还原热离子发射特性研究──不同石墨热离子发射特性的比较  

THE INVESTIGATION ON NON-REDUCTION CHARACTERISTICS OF THERMAL ION EMISSION OF GRAPHITE--A comparison for characteristics of thermal ion emission of different graphite

作　　者：魏海珍[1] 肖应凯[1] 周引民[1] 刘卫国[1] 王蕴慧[1] 

机构地区：[1]中国科学院青海盐湖研究所,青海西宁810008

出　　处：《质谱学报》1999年第3期121-122,共2页Journal of Chinese Mass Spectrometry Society

摘　　要：The non-reduction characteristics of thermal ion emission for six kinds of graphite with different source, purity and crystal structure and one high pure carbon powder were studied in this paper.the results show that the efficacy of thermal ion emission of graphite is weakly relative to purity and size of graphite, while decided by crystal structure of graphite. The graphite with perfect crystal structure has high efficacy of thermal ion emission.The non-reduction characteristics of thermal ion emission for six kinds of graphite with different source, purity and crystal structure and one high pure carbon powder were studied in this paper.the results show that the efficacy of thermal ion emission of graphite is weakly relative to purity and size of graphite, while decided by crystal structure of graphite. The graphite with perfect crystal structure has high efficacy of thermal ion emission.

关 键 词：氯37 铯133 同位素比值 石墨 热离子发射 

分 类 号：O613.42[理学—无机化学] O614.115[理学—化学]