Rb based alkali antimonide high quantum efficiency photocathodes for bright electron beam sources and photon detection applications

Cultrera, L.; Gulliford, C.; Bartnik, A.; Lee, H.; Bazarov, I.

doi:10.1063/1.4975469

Title: Rb based alkali antimonide high quantum efficiency photocathodes for bright electron beam sources and photon detection applications

Journal Article · Tue Feb 07 00:00:00 EST 2017 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4975469· OSTI ID:1465325

Cultrera, L. ^[1]; Gulliford, C. ^[1]; Bartnik, A. ^[1]; Lee, H. ^[1]; Bazarov, I. ^[1]

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.

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Research Organization:: Cornell Univ., Ithaca, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)

Grant/Contract Number:: SC0014338; SC0011643; PHY-1416318

OSTI ID:: 1465325

Alternate ID(s):: OSTI ID: 1361768

Journal Information:: Journal of Applied Physics, Vol. 121, Issue 5; ISSN 0021-8979

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 8 works

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References (17)

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Cited By (2)

A cryogenically cooled high voltage DC photoemission electron source Lee, Hyeri; Liu, Xianghong; Cultrera, Luca Review of Scientific Instruments, Vol. 89, Issue 8 https://doi.org/10.1063/1.5024954	journal	August 2018
Topological insulators for the generation of electron beams Tian, Y.; Gu, G.; Johnson, P. Applied Physics Letters, Vol. 113, Issue 23 https://doi.org/10.1063/1.5052415	journal	December 2018

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Title: Rb based alkali antimonide high quantum efficiency photocathodes for bright electron beam sources and photon detection applications

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