%0 Journal Article
%T Experimental study on helium optical electron polarimetry
%A Ding Hai-Bing
%A Pang Wen-Ning
%A Liu Yi-Bao
%A Shang Ren-Cheng
%A <br>丁海兵
%A 庞文宁
%A 刘义保
%A 尚仁成
%J 中国物理 B
%D 2005
%I 
%X Optical electron polarimetry is suitable for calibration of a spin-polarized electron source, especially for measurement of polarization of spin-polarized electron beam. In this paper, a new optical electron polarimeter is described, which is based on the circularly polarized He radiation induced by the bombarding of He atoms with spin-polarized electrons. The theoretical basis of the optical electron polarimetry and the structure of the optical electron polarimeter are discussed. The measurement of polarization of spin-polarized electrons produced from a new GaAs (100) spin-polarized electron source is carried out. The result of polarization of 30.8% for our spin-polarized electron source is obtained using the He optical electron polarimeter.
%K optical electron polarimeter
%K spin-polarized electrons
%K polarization<br>实验学习
%K 氦
%K 光电子
%K 偏振测定
%K 量子光学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=7064853079D266F5A049B8A4F244A686&yid=2DD7160C83D0ACED&vid=F3583C8E78166B9E&iid=59906B3B2830C2C5&sid=D90DDDDB24DD4AFF&eid=162CE18E988A6D2B&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=16