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本世纪初,英国科学家欧内斯特·卢瑟福发现,受“蹯射气”(~(222)Rn)照射的各种材料板都收集到了一种由氡子体组成的“放射性沉积物”。现在,这种卢瑟福板已被专门设计成α卡。在α卡的两边用两个固态硅探测器来探测氡子体放出的α粒子(这
Earlier this century, the British scientist Ernest Rutherford found that all kinds of material plates irradiated by “gas (222) Rn) collected a radionuclide radionuclide ”. Now, this Rutherford board has been specifically designed as an alpha card. Two solid-state silicon detectors are used on both sides of the alpha card to detect alpha particles emitted by radon progeny