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Effect of Cs adsorption on the photoemission performance of GaAlAs photocathode
Chen X. L.; Jin M. C.; Zeng Y. G.; Hao G. H.; Zhang Y. J.; Chang B. K.; Shi F.; Cheng H. C.
2014
发表期刊Applied Optics
ISSNISBN/1559-128X
卷号53期号:32页码:7709-7715
摘要The effect of Cs adsorption on the photoemission performance of a reflection-mode GaAlAs photocathode in an ultrahigh vacuum chamber has been investigated. The experiments for Cs/O activation, multiple recaesiation, and degradation are performed on a GaAlAs photocathode. Meanwhile, the Cs/ O activated and recaesiated photocurrent curves, degraded photocurrent curves, and spectral response curves are measured and analyzed. Besides, the performance parameters of the photocathodes are obtained by using the formula to fit with the experimental quantum efficiency curves. The results show that the Cs atoms not only make the atomically clean surface form the negative electron affinity, but also make the degraded photocathode recover to a good level. The quantum efficiency and the lifetime of GaAlAs photocathode become lower with increasing the recaesiation times. (C) 2014 Optical Society of America
收录类别SCI ; EI
语种英语
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/43922
专题中科院长春光机所知识产出
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Chen X. L.,Jin M. C.,Zeng Y. G.,et al. Effect of Cs adsorption on the photoemission performance of GaAlAs photocathode[J]. Applied Optics,2014,53(32):7709-7715.
APA Chen X. L..,Jin M. C..,Zeng Y. G..,Hao G. H..,Zhang Y. J..,...&Cheng H. C..(2014).Effect of Cs adsorption on the photoemission performance of GaAlAs photocathode.Applied Optics,53(32),7709-7715.
MLA Chen X. L.,et al."Effect of Cs adsorption on the photoemission performance of GaAlAs photocathode".Applied Optics 53.32(2014):7709-7715.
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