Thermal emittance and lifetime of alkali-antimonide photocathodes grown on GaAs and molybdenum substrates evaluated in a -300  kV dc photogun

Thermal emittance and lifetime of alkali-antimonide photocathodes grown on GaAs and molybdenum substrates evaluated in a -300  kV dc photogun

Cs_{x}K_{y}Sb photocathodes grown on GaAs and molybdenum substrates were evaluated using a −300  kV dc high voltage photogun and diagnostic beam line. Photocathodes grown on GaAs substrates, with varying antimony layer thickness (estimated range from <20  nm to >1  um), yielded similar thermal...

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Bibliographic Details
Main Authors: Y. Wang, M. A. Mamun, P. Adderley, B. Bullard, J. Grames, J. Hansknecht, C. Hernandez-Garcia, R. Kazimi, G. A. Krafft, G. Palacios-Serrano, M. Poelker, M. L. Stutzman, R. Suleiman, M. Tiefenback, S. Wijethunga, J. Yoskowitz, S. Zhang
Format: Article
Language:English
Published: American Physical Society 2020-10-01
Series:Physical Review Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevAccelBeams.23.103401

Internet

http://doi.org/10.1103/PhysRevAccelBeams.23.103401

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