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摘要: 本文介绍一台慢正电子束装置。在该装置上我们用W慢化体产生慢正电子,测量了慢正电子能谱,并和在该装置上用Ni+Mgo慢化体所得结果进行了比较。
Abstract: In this article, we describe an apparatus for producing a slow-positron beam by moderating the decay positrons from a radioactive source using a W-vane moderator. The integral energy spectrum of the slow-positrons was measured with a retarding field analyser. The results are compared with that obtained using a Ni+MgO moderator at the same apparatus.