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

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4945091· OSTI ID:1469700
 [1];  [2];  [2];  [2];  [2]
  1. Cornell Univ., Ithaca, NY (United States); Cornell University
  2. Cornell Univ., Ithaca, NY (United States)
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.
Research Organization:
Cornell Univ., Ithaca, NY (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC)
Grant/Contract Number:
SC0011643; SC0014338
OSTI ID:
1469700
Alternate ID(s):
OSTI ID: 1245032
OSTI ID: 22591517
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 13 Vol. 108; ISSN APPLAB; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (17)

Growth and stoichiometry of the CsxSb surface film of a high-efficiency, multialkali-antimonide photocathode journal July 1997
Cathode R&D for future light sources
  • Dowell, D. H.; Bazarov, I.; Dunham, B.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 622, Issue 3 https://doi.org/10.1016/j.nima.2010.03.104
journal October 2010
Role of the cesium antimonide layer in the Na2KSb/Cs3Sb photocathode journal December 2001
Thermal emittance and response time measurements of negative electron affinity photocathodes journal March 2008
Electron temperature dependence of the electron-phonon coupling strength in double-wall carbon nanotubes journal July 2013
Design, conditioning, and performance of a high voltage, high brightness dc photoelectron gun with variable gap journal September 2014
A novel system for measurement of the transverse electron momentum distribution from photocathodes journal January 2015
Future water Cherenkov detectors
  • Bergevin, Marc
  • INTERNATIONAL CONFERENCE ON MATHEMATICS, ENGINEERING AND INDUSTRIAL APPLICATIONS 2014 (ICoMEIA 2014), AIP Conference Proceedings https://doi.org/10.1063/1.4919500
conference January 2015
Measurement of the tradeoff between intrinsic emittance and quantum efficiency from a NaKSb photocathode near threshold journal June 2015
Electron emission characterization of Mg photocathode grown by pulsed laser deposition within an S -band rf gun journal April 2009
Characterization of a superconducting Pb photocathode in a superconducting rf photoinjector cavity journal December 2013
Intrinsic emittance reduction of copper cathodes by laser wavelength tuning in an rf photoinjector journal March 2015
Measurements of copper and cesium telluride cathodes in a radio-frequency photoinjector journal April 2015
Cold electron beams from cryocooled, alkali antimonide photocathodes journal November 2015
Alkali antimonides photocathodes growth using pure metals evaporation from effusion cells
  • Cultrera, Luca; Lee, Hyeri; Bazarov, Ivan
  • Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, Vol. 34, Issue 1 https://doi.org/10.1116/1.4936845
journal December 2015
Effect of Sb thickness on the performance of bialkali-antimonide photocathodes
  • Mamun, Md Abdullah A.; Elmustafa, Abdelmageed A.; Hernandez-Garcia, Carlos
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 34, Issue 2, Article No. 021509 https://doi.org/10.1116/1.4939563
journal March 2016
Generation of transform-limited 32-fs pulses from a self-mode-locked Ti:sapphire laser journal January 1992

Cited By (4)

A cryogenically cooled high voltage DC photoemission electron source journal August 2018
Photoemission and degradation of semiconductor photocathode journal December 2019
Photoemission and Degradation of Semiconductor Photocathode text January 2019
Electron Diagnostics for Extreme High Brightness Nano-Blade Field Emission Cathodes journal October 2019

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