研制了一种用于同位素分离在线穆斯堡尔谱学的平行板雪崩计数器,计数器仅重40 g.用它测量由穆斯堡尔共振吸收后放出的内转换电子,采用85% 119Sn同位素增丰的SnO2作为阴极吸收材料,测得的穆斯堡尔谱的信噪比为11,是一种适合在线穆斯堡尔实验的计数器.对该计数器的性能进行了讨论.
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