激光具有高强度、高极化度等优异的性能. 用激光束轰击高能电子束就可以产生高强度、高极化度的γ射线束. 上海激光电子γ源就是上海同步辐射装置上的这样一条束线站. 预计可以获得能量范围为1-22 MeV的准单色、高强度(109-1011 s-1)和高极化度(线极化或圆极化)的γ射线束. 介绍了这条束线站目前的进展情况.
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