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Title: Ultra low emittance electron beams from multi-alkali antimonide photocathode operated with infrared light

Abstract

The intrinsic emittance of electron beams generated from a multi-alkali photocathode operated in a high voltage DC gun is reported. The photocathode showed sensitivity extending to the infrared part of the spectrum up to 830 nm. The measured intrinsic emittances of electron beams generated with light having wavelength longer than 800 nm are approaching the limit imposed by the thermal energy of electrons at room temperature with quantum efficiencies comparable to metallic photocathodes used in operation of modern photoinjectors.

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. Cornell Univ., Ithaca, NY (United States)
Publication Date:
Research Org.:
Cornell Univ., Ithaca, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1469700
Alternate Identifier(s):
OSTI ID: 1245032
Grant/Contract Number:  
SC0014338; SC0011643
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 108; Journal Issue: 13; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Cultrera, L., Gulliford, C., Bartnik, A., Lee, H., and Bazarov, I. Ultra low emittance electron beams from multi-alkali antimonide photocathode operated with infrared light. United States: N. p., 2016. Web. doi:10.1063/1.4945091.
Cultrera, L., Gulliford, C., Bartnik, A., Lee, H., & Bazarov, I. Ultra low emittance electron beams from multi-alkali antimonide photocathode operated with infrared light. United States. doi:10.1063/1.4945091.
Cultrera, L., Gulliford, C., Bartnik, A., Lee, H., and Bazarov, I. Fri . "Ultra low emittance electron beams from multi-alkali antimonide photocathode operated with infrared light". United States. doi:10.1063/1.4945091. https://www.osti.gov/servlets/purl/1469700.
@article{osti_1469700,
title = {Ultra low emittance electron beams from multi-alkali antimonide photocathode operated with infrared light},
author = {Cultrera, L. and Gulliford, C. and Bartnik, A. and Lee, H. and Bazarov, I.},
abstractNote = {The intrinsic emittance of electron beams generated from a multi-alkali photocathode operated in a high voltage DC gun is reported. The photocathode showed sensitivity extending to the infrared part of the spectrum up to 830 nm. The measured intrinsic emittances of electron beams generated with light having wavelength longer than 800 nm are approaching the limit imposed by the thermal energy of electrons at room temperature with quantum efficiencies comparable to metallic photocathodes used in operation of modern photoinjectors.},
doi = {10.1063/1.4945091},
journal = {Applied Physics Letters},
number = 13,
volume = 108,
place = {United States},
year = {2016},
month = {4}
}

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