摘要
RADIONUCLIDES IN RICE IN HONG KONGK.N.YuandS.Y.Mao(DepartmentofPhysicsandMaterialsScience,CityPolytechnicofHongKong)Abstract:...
Radionuclide contents in imported rice are determined using the EG&G ORTEC photon spectrometer system. Most of the natural radionuclides are found to have specific activities below the detectable limit. 40K has values ranging from 0.104to 32.97 Bq/kg; 137Cs from 0.009 to 0.52 Bq/kg; and 95Zr less than 0.077 Bq/kg. The annual effective dose for a male and a female adult is 18μSv and 12.7μSv, respectively. Both are less than the value recommended by the International Commission of Radiological Protection.
关键词
核电厂
光子分光计系统
剂量记录仪
Photon spectrometer system, Rice,  ̄(40)K, ̄(137)Cs,  ̄(95)Zr, Weighted committed dose equivalent