Atomic hydrogen cleaning of polarized GaAs photocathodes

T. Maruyama, D. A. Luh, A. Brachmann, J. E. Clendenin, E. L. Garwin, S. Harvey, R. E. Kirby, C. Y. Prescott, R. Prepost

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


The preparation of polarized, negative electron affinity GaAs photocathodes was discussed. The photocathode was prepared using atomic hydrogen cleaning followed by heat cleaning at 450°C. Quantum efficiencies of 15% were obtained for the GaAs cathodes, when hydrogen ions were eliminated. Low temperature cleaning technique was applied for producing highly polarized electrons.

Original languageEnglish
Pages (from-to)4184-4186
Number of pages3
JournalApplied Physics Letters
Issue number23
StatePublished - 9 Jun 2003


Dive into the research topics of 'Atomic hydrogen cleaning of polarized GaAs photocathodes'. Together they form a unique fingerprint.

Cite this