Title :
Recent progress on the diamond amplified photo-cathode experiment
Author :
Xiangyun Chang ; Ben-Zvi, I. ; Burrill, A. ; Grimes, J. ; Rao, T. Rama ; Segalov, Z. ; Smedley, J. ; Qiong Wu
Author_Institution :
BNL, Upton
Abstract :
We report recent progress on the diamond amplified photo-cathode (DAP). The use of a pulsed electron gun provides detailed information about the DAP physics. The secondary electron gain has been measured under various electric fields. We have achieved gains of a few hundred in the transmission mode and observed evidence of emission of electrons from the surface. A model based on recombination of electrons and holes during generation well describes the field dependence of the gain. The emittance measurement system for the DAP has been designed, constructed and is ready for use. The capsule design of the DAP is also being studied in parallel.
Keywords :
diamond; photocathodes; diamond amplified photo-cathode experiment; pulsed electron gun; secondary electron gain; Cathodes; Charge carrier processes; Coatings; Digital audio players; Electron emission; Electron traps; Gain measurement; Pollution measurement; Radio frequency; Spontaneous emission;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4441140