Surface science analysis of GaAs photocathodes following sustained electron beam delivery

Degradation of the photocathode materials employed in photoinjectors represents a challenge for sustained operation of nuclear physics accelerators and high power free electron lasers (FEL). Photocathode quantum efficiency degradation is due to residual gases in the electron source vacuum system bei...

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Bibliographic Details
Main Authors: V. Shutthanandan, Z. Zhu, M. L. Stutzman, F. E. Hannon, C. Hernandez-Garcia, M. I. Nandasiri, S. V. N. T. Kuchibhatla, S. Thevuthasan, W. P. Hess
Format: Article
Language:English
Published: American Physical Society 2012-06-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.15.063501