我们采用美国国家标准局制备的标准铀玻璃进行反应堆中子注量率测量。测量方法如下: 1.内表面法 将实验中辐照过的标准玻璃和商品包中已经在美国国家标准局反应堆中辐照过的标准玻璃(RT-3或RT-4)一块进行抛磨,磨掉的厚度为30μm并抛光。用16％HF,于20℃蚀刻75秒钟,统计诱发裂变径迹密度。按下式计算注量率(φ_(ex))。 We use standard uranium glass prepared by the National Bureau of Standards for reactor neutron fluence measurement. The methods of measurement are as follows: 1. Inner surface method The standard glass irradiated in the experiment and the standard glass (RT-3 or RT-4) in the commercial package that have been irradiated in the reactor of the United States National Bureau of Standards are polished, Abrasion thickness of 30μm and polished. With 16% HF, etching was performed at 20 ° C for 75 seconds, and the fission track density was estimated. The following equation is used to calculate the fluence (φ_ (ex)).