A low emittance and high efficiency visible light photocathode for high brightness accelerator-based X-ray light sources

A low emittance and high efficiency visible light photocathode for high brightness accelerator-based X-ray light sources

Free-electron lasers and energy recovery linacs represent a new generation of ultra-high brightness electron accelerator based x-ray sources. Photocathodes are a critical performance-limiting component of these systems. Here, we describe the development of photocathodes based on potassium-cesium-ant...

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Bibliographic Details
Published in:Applied physics letters Vol. 99; no. 3; pp. 034103 - 034103-3
Main Authors: Vecchione, T., Ben-Zvi, I., Dowell, D. H., Feng, J., Rao, T., Smedley, J., Wan, W., Padmore, H. A.
Format: Journal Article
Language:English
Published: United States American Institute of Physics 18-07-2011
Subjects:
ACCELERATORS
BRIGHTNESS
EFFICIENCY
ELECTRONS
ENERGY RECOVERY
FREE ELECTRON LASERS
LASERS
LIGHT SOURCES
LINEAR ACCELERATORS
PARTICLE ACCELERATORS
PHOTOCATHODES
QUANTUM EFFICIENCY
X-RAY SOURCES
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Summary:Free-electron lasers and energy recovery linacs represent a new generation of ultra-high brightness electron accelerator based x-ray sources. Photocathodes are a critical performance-limiting component of these systems. Here, we describe the development of photocathodes based on potassium-cesium-antimonide that satisfy many of the key requirements of future light sources, such as robustness, high quantum efficiency when excited with visible light, and low transverse emittance.
Bibliography:DE-AC02-98CH10886
USDOE SC OFFICE OF SCIENCE (SC)
BNL-96395-2011-JA
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3612916