Rb based alkali antimonide high quantum efficiency photocathodes for bright electron beam sources and photon detection applications
Journal Article
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· Journal of Applied Physics
- Cornell Univ., Ithaca, NY (United States). Cornell Lab. for Accelerator-Based Sciences and Education; CORNELL UNIVERSITY
- Cornell Univ., Ithaca, NY (United States). Cornell Lab. for Accelerator-Based Sciences and Education
In this paper, high quantum efficiency alkali antimonide photocathodes have been grown over both stainless steel and glass substrates using sequential evaporation of Sb, K, Rb, and Cs. Quantum efficiencies well above 25% have been measured at 400 nm. Finally, a bi-alkali Rb-K-Sb photocathode grown on a stainless steel substrate has been installed in a high voltage DC gun at Cornell University and the intrinsic electron beam emittance was measured at different photon energies.
- Research Organization:
- Cornell Univ., Ithaca, NY (United States)
- Sponsoring Organization:
- National Science Foundation (NSF) (United States); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Grant/Contract Number:
- SC0011643; SC0014338
- OSTI ID:
- 1465325
- Alternate ID(s):
- OSTI ID: 1361768
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 5 Vol. 121; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:2579959