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

Journal Article · Mon Jul 18 00:00:00 EDT 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3612916· OSTI ID:22027685

Vecchione, T; Feng, J; Wan, W; Padmore, H A ^[1]; Ben-Zvi, I ^[2]; Dowell, D H ^[1]; Rao, T; Smedley, J ^[2]

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1. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
2. Brookhaven National Laboratory, Upton, New York 11973 (United States)

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.

• OSTI ID: 22027685
• Journal Information: Applied Physics Letters, Vol. 99, Issue 3; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ANTIMONIDES
BRIGHTNESS
CESIUM COMPOUNDS
ENERGY RECOVERY
FREE ELECTRON LASERS
LIGHT SOURCES
LINEAR ACCELERATORS
PERFORMANCE
PHOTOCATHODES
POTASSIUM COMPOUNDS
QUANTUM EFFICIENCY
VISIBLE RADIATION
X-RAY SOURCES