XIE Feng JIANG Wengang HE Xiaobing LI Xuesong CHANG Yongfu. Development of a low background system for radioactive gas measurement[J]. Nuclear techniques, 2011, 34(4): 309-312.
XIE Feng JIANG Wengang HE Xiaobing LI Xuesong CHANG Yongfu. Development of a low background system for radioactive gas measurement[J]. Nuclear techniques, 2011, 34(4): 309-312.DOI:
In order to satisfy the requirement of mobile measurement
we developed a low background measurement equipment for radioactive gas.It uses an internal gas proportional counter as main detector
which is inserted into a well-type NaI(Tl) detector to form an anticoincidence detector.Test results show that a low background system has good performance in radioactive gas measurement.In a 24-h measurement
the minimum detectable activities for 3H and 85Kr were 4.08 and 3.73 mBq