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Title: High Efficiency Visible Photocathode Development

Abstract

The alkali antimonides are of significant interest to the accelerator community, as they have a high quantum efficiency (QE) under illumination by green light. These cathodes are attractive for high-average-current photoinjector applications and understanding their fundamental properties are critical to the production of long lived, reliable cathodes. We report on ongoing work to characterize cathode formation during growth. In-situ X-ray Diffraction (XRD) has been used to compare grain size and texture in antimony layers, and X-ray Photoelectron Spectroscopy (XPS) has been used to investigate the solid-state chemistry of cathode formation.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
BROOKHAVEN NATIONAL LABORATORY (BNL)
Sponsoring Org.:
USDOE SC OFFICE OF SCIENCE (SC)
OSTI Identifier:
1049218
Report Number(s):
BNL-96663-2011-JA
KA-04; TRN: US1204413
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Journal Name:
Proceedings of IPAC2011
Additional Journal Information:
Conference: IPAC2011 (International Particle Accelerator Conference); San Sebastian, Spain; 20110904 through 20110909
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 43 PARTICLE ACCELERATORS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCELERATORS; ANTIMONIDES; ANTIMONY; CATHODES; CHEMISTRY; EFFICIENCY; GRAIN SIZE; ILLUMINANCE; PHOTOCATHODES; PRODUCTION; QUANTUM EFFICIENCY; TEXTURE; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Smedley J., Rao T., Mueller, K., Ben-Zvi, I., Ruiz-Oses, M., Liang, X., Muller, E.M., Lee, S., Attenkofer, K., Padmore, H., and Vecchione, T. High Efficiency Visible Photocathode Development. United States: N. p., 2011. Web.
Smedley J., Rao T., Mueller, K., Ben-Zvi, I., Ruiz-Oses, M., Liang, X., Muller, E.M., Lee, S., Attenkofer, K., Padmore, H., & Vecchione, T. High Efficiency Visible Photocathode Development. United States.
Smedley J., Rao T., Mueller, K., Ben-Zvi, I., Ruiz-Oses, M., Liang, X., Muller, E.M., Lee, S., Attenkofer, K., Padmore, H., and Vecchione, T. Fri . "High Efficiency Visible Photocathode Development". United States.
@article{osti_1049218,
title = {High Efficiency Visible Photocathode Development},
author = {Smedley J. and Rao T. and Mueller, K. and Ben-Zvi, I. and Ruiz-Oses, M. and Liang, X. and Muller, E.M. and Lee, S. and Attenkofer, K. and Padmore, H. and Vecchione, T.},
abstractNote = {The alkali antimonides are of significant interest to the accelerator community, as they have a high quantum efficiency (QE) under illumination by green light. These cathodes are attractive for high-average-current photoinjector applications and understanding their fundamental properties are critical to the production of long lived, reliable cathodes. We report on ongoing work to characterize cathode formation during growth. In-situ X-ray Diffraction (XRD) has been used to compare grain size and texture in antimony layers, and X-ray Photoelectron Spectroscopy (XPS) has been used to investigate the solid-state chemistry of cathode formation.},
doi = {},
journal = {Proceedings of IPAC2011},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {9}
}