Progress in yo-yo process to produce polarized electrons from GaAs photocathode

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Progress in yo-yo process to produce polarized electrons from GaAs photocathode

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Li Qian, Hao Liang, Pang Wen-Ning

Acta Phys. Sin., 2008, 57(1): 172-175.

Abstract
By studying the process of producing polarized electrons by the photoemission of GaAs, different experimental parameters on the generation and stability of the electron beam is discussed. A feasible way to generate stable beam of long duration is provided. There is also a discussion on producing polarized electron beam with controlled intensity.

Keywords:
GaAs crystal /

spin-polarized electron beam /

yo-yo process /

activation process
Authors and contacts
Li Qian,

Hao Liang,

Pang Wen-Ning

1.
清华大学物理系极化物理实验室,北京 100084
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