Evaluation of electron energy spread in CsBr based photocathodes
Abstract
Photocathodes with relatively low energy spread (<0.5eV) are required for electron sources in several applications including single and multiple electron beam inspection and lithography tools and free electron lasers. CsBr based photocathodes have been shown to be very robust and capable of operation at high current density (>150A∕cm2) with very long lifetime (approximately hundreds of hours/spot). Experimental results of the photoelectron energy spread obtained in CsBr films deposited on both metal and InGaN substrates will be presented in this paper.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 01, 2008
- Source ID
- 10.1116/1.2976572
Entities
People
- Fabian Pease
- Juan R. Maldonado
- Piero Pianetta
- Sayaka Tanimoto
- Xuefeng Liu
- Yun Sun
- Zhi Liu
Organizations
- Defense Advanced Research Projects Agency
- Hitachi Central Research Laboratory
- Stanford Synchrotron Radiation Lightsource
- Stanford University