【摘要】 北京谱仪BES辐射本底水平是由大厅内的辐射水平决定的 .降低厅内的辐射水平是减少BES的辐射本底和提高BES探测效率和“信噪比”的重要途径 .文中着重研究了谱仪厅内辐射本底的强度 ,来源及特点 ,并探讨了减少辐射的方法更多还原

【Abstract】 The radiation background of BES detector depends on the radiation level in the BES experimental hall. The way to reduce radiation level of experimental hall is very important for suppression of radiation background of BES and improvement of detection efficiency. The radiation level, the source and distinguishing feature of radiation background have been studied. The way to reduce the radiation has been discussed.更多还原