强激光与粒子束2012，Vol.24Issue(4)：957-962,6.DOI:10.3788/HP1PB20122404.0957
天鹅绒与碳纳米管阴极强流脉冲发射特性
Intense pulsed emission of velvet and carbon nanotube cathodes
摘要
Abstract
Experiments on intense pulsed emission properties of velvet and carbon nanotube(CNT) cathodes have been conducted on the 2 MeV linear induction accelerator injector. The results show that both velvet and CNT cathodes can emit intense e-lectron beams under 1. 61 MV pulsed high voltage. The intense electron beams are 84 and 108 A/em2 in current density, and the turn-on times are 21 and 40 ns, respectively. The amount of outgassing is estimated to be 0. 29 and 0. 91 Pa ·L, and the number of outgassed molecules per electron is 64 and 225 for velvet and CNT cathodes. Moreover, the outgassing mass spectra of the two cathodes are similar to each other.关键词
天鹅绒阴极/碳纳米管阴极/强流脉冲发射/放气Key words
velvet cathode/carbon nanotube cathode/intense pulsed emission/outgassing分类
能源科技引用本文复制引用
谌怡,夏连胜,张篁,杨安民,刘星光,廖庆亮..天鹅绒与碳纳米管阴极强流脉冲发射特性[J].强激光与粒子束,2012,24(4):957-962,6.基金项目
新金属材料国家重点实验室基金项目(20082D-10) （20082D-10）
