Preliminary Systematic Study of the Temperature Effect on the K–Cs–Sb Photocathode Performance Based on the K and Cs Co-Evaporation
Xu-Dong Li1**, Zeng-Gong Jiang1, Qiang Gu1, Ming-Hua Zhao2, Li Guo2
1Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210 2Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800
Abstract：It is very important to increase the quantum efficiency (QE) and prolong the lifetime of the photocathode in a variety of applications. We have succeeded in preparing a high QE cesium potassium antimonide (K–Cs–Sb) photocathode by K and Cs co-evaporation in the photocathode preparation facility. In order to better understand the effect of the substrate (photocathode) temperature on the photocathode performance, the photocathode preparation, photocathode performance degradation, photocathode performance recovery and photocathode removal are studied in detail.
(Vacuum chambers, auxiliary apparatus, and materials)
引用本文:
. [J]. 中国物理快报, 2020, 37(1): 12901-.
Xu-Dong Li, Zeng-Gong Jiang, Qiang Gu, Ming-Hua Zhao, Li Guo. Preliminary Systematic Study of the Temperature Effect on the K–Cs–Sb Photocathode Performance Based on the K and Cs Co-Evaporation. Chin. Phys. Lett., 2020, 37(1): 12901-.
Ding Z H, Karkare S, Feng J, Filippetto D, Johnson M, Virostek S, Sannibale F, Nasiatka J, Gaowei M, Sinsheimer J, Muller E, Smedley J and Padmore H 2017 Phys. Rev. Accel. Beams20 11
[6]
Kuriki M, Shonaka C, Iijima H, Kubo D, Okamoto H, Higaki H, Ito K, Yamamoto M, Konomi T, Okumi S, Kuwahara M and Nakanishi T 2011 Nucl. Instrum. Methods Phys. Res. Sect. A637
2020, Vol. 37 
