Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 622, Issue 3, Pages 685-697Publisher
ELSEVIER
DOI: 10.1016/j.nima.2010.03.104
Keywords
Cathode research; Electron source; Photocathodes; Quantum efficiency; Thermal emittance; High average current; Energy recovery linacs
Categories
Funding
- Department of Energy [DE-AC03-76SF00515, DE-AC02-05CH11231, DE AC02-98CH1-886]
- US Department of Energy, Office of Basic Energy Sciences [DE-AC02-06CH11357]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0807731] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0937466] Funding Source: National Science Foundation
Ask authors/readers for more resources
This paper reviews the requirements and current status of cathodes for accelerator applications, and proposes a research and development plan for advancing cathode technology. Accelerator cathodes need to have long operational lifetimes and produce electron beams with a very low emittance. The two principal emission processes to be considered are thermionic and photoemission with the photocathodes being further subdivided into metal and semi-conductors. Field emission cathodes are not included in this analysis. The thermal emittance is derived and the formulas used to compare the various cathode materials. To date, there is no cathode which provides all the requirements needed for the proposed future light sources. Therefore a three part research plan is described to develop cathodes for these future light source applications. Published by Elsevier B.V.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
