马尔科夫法气球测氡仪探测效率的探究

摘要

探测效率是气球法测氡装置的重要技术指标之一，它的大小直接影响着测氡装置的测量结果的准确性；论文探究出新型气球测氡装置的探测效率的方法；基于成都理工大学研制的一款新型气球法测氡仪-马尔科夫法气球测氡仪，结合其测氡的原理，推导了气球法测氡装置探测效率η表达式；通过南华大学氡实验室刻度常数的实验结果，计算出了该装置探测效率η理论值，并与η实测值进行了对比，结果表明，在误差范围内，由这种方法计算气球法测氡装置的探测效率是有可行性的。%Detection efficiency is one of the most important qualifications in the device of measuring radon in balloon method;Its value would influence the veracity of the results .This paper had explored a new method a-bout calculating detection efficiency of the device measuring radon in balloon method .Based on the new device of measuring radon in balloon method -that was developed by CDUT , and combined the principle of radon measurement, has deduced the expression of detection efficient η.And experimentally the value of the detection efficiency has been measured .The result show that the theory used in calculating detection of balloon method for measurement of radon is quite feasible in the range of error .