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探测器材料中微量元素放射性纯度的测量对于低本底试验是一个非常重要的方面。129I是235U与239Pu热中子诱发裂变的一种长寿命(半衰期1.57×107a)核素,其在自然界中广泛存在,探测器材料中存在的129I对于暗物质和低能中微子试验等都能够产生影响。本工作发展了一种方法,即使用加?
The measurement of radioactive purity of trace elements in detector materials is a very important aspect for low background testing. 129I is a long-lived (half-life 1.57 × 107a) nuclide induced by 235U and 239Pu thermal neutron-induced fission, which is widespread in nature. The 129I present in detector materials is capable of generating dark matter and low-energy neutrino experiments influences. This work has developed a method that uses plus?