随着民用核设施的发展及放射性同位素的广泛应用,人们对环境、食品、饮用水的放射性卫生问题越来越重视;在辐射防护、环境监测及科学实验中,遇到愈来愈多的弱放射性测量的问题~([1-3]),其中弱α、β放射性的测量非常重要,尤其是2011年福岛核事故后,环境监测等部门需要快速准确的测量水、土壤、空气等环境及食品中的总α、总β辐射水平,及时公布监测结果,引导公众正确理解受到的辐射水平,对当今α、β With the development of civilian nuclear facilities and the widespread use of radioisotopes, people attach more and more importance to the radiological health problems of the environment, food and drinking water. In radiation protection, environmental monitoring and scientific experiments, more and more weaknesses are encountered Radioactive measurement problems (1-3), of which the weak α, β radioactivity measurement is very important, especially after the Fukushima nuclear accident in 2011, environmental monitoring and other departments need to quickly and accurately measure water, soil, air and other environments And food in the total α, total β radiation levels, the timely publication of monitoring results, guide the public to correctly understand the level of radiation received, the current α, β