2026-05-20T04:20:25Zhttps://keep.lib.asu.edu/oai/requestoai:keep.lib.asu.edu:node-2006322025-06-02T22:04:33Zoai_pmh:alloai_pmh:repo_items200632
https://hdl.handle.net/2286/R.2.N.200632
http://rightsstatements.org/vocab/InC/1.0/
http://creativecommons.org/licenses/by-nc-sa/4.0
2025-05
57 pages
Mama, Jo
Karkare, Siddharth
Owusu, Peter
Barrett, The Honors College
Department of Physics
School of Mathematical and Statistical Sciences
Bright electron beams with photo injectors are used for XFELS, UEM, UED, and accelerators for fundamental physics research. Essential to a photocathode’s use in a photoinjector system is the minimum MTE achievable for a beam generated with it. Atomically ordered, single-crystalline photocathodes are ideal, and multiple materials have been identified for their potential as photocathodes, but not properly tested. At the Arizona State University Photoemission and Bright Beams Laboratory, we have developed a 200 kV crycooled electron gun and vacuum beamline with widely available parts to test a variety of photocathode candidates for bright electron beams, as well as programs to process this data to obtain MTE and emittance measurements.
Bright beam
Electron
Electron beam
Accelerator
Materials Physics
Electron gun
Physics
Cathode
Mean transverse energy
Emittance
PBBL
Generating & Analyzing Bright Electron Beams to Test Photocathodes