Journal article
Monte Carlo charge transport and photoemission from negative electron affinity GaAs photocathodes
Abstract
High quantum yield, low transverse energy spread, and prompt response time make GaAs activated to negative electron affinity an ideal candidate for a photocathode in high brightness photoinjectors. Even after decades of investigation, the exact mechanism of electron emission from GaAs is not well understood. Here, photoemission from such photocathodes is modeled using detailed Monte Carlo electron transport simulations. Simulations show a …
Authors
Karkare S; Dimitrov D; Schaff W; Cultrera L; Bartnik A; Liu X; Sawyer E; Esposito T; Bazarov I
Journal
Journal of Applied Physics, Vol. 113, No. 10,
Publisher
AIP Publishing
Publication Date
March 14, 2013
DOI
10.1063/1.4794822
ISSN
0021-8979