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| Monte-Carlo Calculations of HPGe Detection Efficiency and Coincidence-summing Correction |
| XU Cui-hua, ZHANG Qing, ZHOU Qiang, et al |
| National Institute for Radiological Protection and Nuclear Safety, China Center for Disease Control and Prevention, Beiing 100088, China |
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Abstract Objective This paper introduces a Monte-Carlo program Cool 2000 for calculating HPGe detection efficiency and coincidence-summing correction.It employs Monte Carlo emulation (MC) technique for calculating detection efficiency and coincidence-summing correction of HPGe gamma spectrometry system.Methods The program is written in Fortran and tested with 3 types of volume calibration sources simulating air, water and soil samples, respectively, and each source contained 8 radionuclides.Results The results proved that the relative differences of calculated and actually measured coincidence-summing corrections were within ±5.14%, ±12.1% and ±10.4%, respectively.Tests also made for point source at distances to detector of 5cm, 10cm and 25cm, respectively.It indicated that the relative differences of measured and calculated efficiencies were within ±10.6%, ±5.6% and ±3.04%, respectively.Conclusion The reported MC program Cool 2000 is applicable to environmental radiation monitoring for calculating HPGe detection efficiency and coincidence-summing correction.
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Received: 08 September 2003
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| [1] |
. [J]. , 2017, 26(1): 88-91. |
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