High Intensity Polarized Electron Sources*
نویسنده
چکیده
The status of the polarized electron source development program at SLAC will be reviewed. Emission currents of 60 A, corresponding to a space charge limited current density of 180 A/cm2. have been obtained from GaAs photocathodes. Electron beam polarization 20% greater than that obtainable from GaAs cathodes has been observed from multilayer &As-GaAlAs structures. Work in progress to produce high beam polarization from II-IV-V2 chalcopyrite photocathodes will also be described.
منابع مشابه
SLAC - PUB - 2109 April 1978 A HIGH INTENSITY POLARIZED ELECTRON SOURCE
Development of a high intensity, rapidly reversible, polarized electron source to serve as an injector for the Stanford Linear Accelerator is underway. Polarized electrons are obtained by iiluminating negative electron affinity GaAs with circularly polarized light of wavelength corresponding to the band gap. The present status of the project is described. It is anticipated that this source will...
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