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Title: Analytical model and simulation of the Schottky effect on a cryo-cooled bialkali photocathode

A bialkali photocathode with the quantum efficiency (QE) in the range of a few percent was fabricated for the 704 MHz SRF gun at Brookhaven National Laboratory. The photoemission properties of the bialkali photocathode in the superconducting radio frequency (SRF) gun were measured for the first time, and a good beam experiment result was obtained. The performance of the bialkali photocathode was investigated during the commissioning process of the 704 MHz SRF gun. In conclusion, the effect of electric field on the QE of the cryo-cooled cathode was characterized by an analytical model and a code for the first time.
Authors:
 [1] ;  [2] ;  [1]
  1. Peking Univ., Beijing (China)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-207842-2018-JAAM
Journal ID: ISSN 1001-8042
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
Nuclear Science and Techniques
Additional Journal Information:
Journal Volume: 29; Journal Issue: 5; Journal ID: ISSN 1001-8042
Publisher:
Shanghai Institute of Applied Physics
Research Org:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; Schottky effect; Bialkali photocathode; Surface potential; Superconducting radio frequency gun
OSTI Identifier:
1460714

Xie, Hua -Mu, Wang, Er -Dong, and Liu, Ke -Xin. Analytical model and simulation of the Schottky effect on a cryo-cooled bialkali photocathode. United States: N. p., Web. doi:10.1007/s41365-018-0400-6.
Xie, Hua -Mu, Wang, Er -Dong, & Liu, Ke -Xin. Analytical model and simulation of the Schottky effect on a cryo-cooled bialkali photocathode. United States. doi:10.1007/s41365-018-0400-6.
Xie, Hua -Mu, Wang, Er -Dong, and Liu, Ke -Xin. 2018. "Analytical model and simulation of the Schottky effect on a cryo-cooled bialkali photocathode". United States. doi:10.1007/s41365-018-0400-6. https://www.osti.gov/servlets/purl/1460714.
@article{osti_1460714,
title = {Analytical model and simulation of the Schottky effect on a cryo-cooled bialkali photocathode},
author = {Xie, Hua -Mu and Wang, Er -Dong and Liu, Ke -Xin},
abstractNote = {A bialkali photocathode with the quantum efficiency (QE) in the range of a few percent was fabricated for the 704 MHz SRF gun at Brookhaven National Laboratory. The photoemission properties of the bialkali photocathode in the superconducting radio frequency (SRF) gun were measured for the first time, and a good beam experiment result was obtained. The performance of the bialkali photocathode was investigated during the commissioning process of the 704 MHz SRF gun. In conclusion, the effect of electric field on the QE of the cryo-cooled cathode was characterized by an analytical model and a code for the first time.},
doi = {10.1007/s41365-018-0400-6},
journal = {Nuclear Science and Techniques},
number = 5,
volume = 29,
place = {United States},
year = {2018},
month = {3}
}