Measurement of the ambient gamma dose equivalent and kerma from the small 252Cf source at 1 meter and the small 60Co source at 2 meters

Carl, W. F.¹ 

[1] Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

关键词: COBALT 60;    CALIFORNIUM 252;    AIR;    GAMMA RADIATION;    DOSE EQUIVALENTS;    KERMA;    ELECTROMETERS;    IONIZATION CHAMBERS;    PLASTICS;    RADIATION DOSE UNITS;    DISTANCE;    MICRO SV PER HOUR RANGE 10-100;    MICRO SV PER HOUR RANGE 100-1000;   

DOI  :  10.2172/1236120
RP-ID  :  LLNL--TR-675623
PID  :  OSTI ID: 1236120
Others  :  TRN: US1600258

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

NASA Langley Research Center requested a measurement and determination of the ambient gamma dose equivalent rate and kerma at 100 cm from the ²⁵²Cf source and determination of the ambient gamma dose equivalent rate and kerma at 200 cm from the ⁶⁰Co source for the Radiation Budget Instrument Experiment (Rad-X). An Exradin A6 ion chamber with Shonka air-equivalent plastic walls in combination with a Supermax electrometer were used to measure the exposure rate and free-in-air kerma rate of the two sources at the requested distances. The measured gamma exposure, kerma, and dose equivalent rates are tabulated.