| XIAO Xue-fu,ZHANG Ji-yun,WANG Zhong-qi,et al.Modeling dose-rate on/over the surface of cylindrical radio-models using Mont Carlo methods[J].Chinese Journal of Radiological Medicine and Protection,2004,24(1):61-65 |
| Modeling dose-rate on/over the surface of cylindrical radio-models using Mont Carlo methods |
| Received:August 04, 2003 |
| DOI： |
| KeyWords:Ionization radiation A radio-model High gas pressurized ionization chamber Dose-rate |
| FundProject: |
| Author Name | Affiliation | | XIAO Xue-fu | Beijing Health Physics Department, China Institute of Atomic Energy, Beijing 102413, China | | ZHANG Ji-yun | 中国核工业地质勘查计量站 | | WANG Zhong-qi | 102413 北京, 中国原子能科学研究院计算机与核技术应用研究所 | | 黄清波 | 中国核工业地质勘查计量站 | | 马国学 | Beijing Health Physics Department, China Institute of Atomic Energy, Beijing 102413, China | | 张家秋 | 中国核工业地质勘查计量站 | | 王朝辉 | 102413 北京, 中国原子能科学研究院计算机与核技术应用研究所 | | 望新兴 | 中国核工业地质勘查计量站 | | 文富平 | Beijing Health Physics Department, China Institute of Atomic Energy, Beijing 102413, China | | 王军 | 中国核工业地质勘查计量站 |
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| Abstract:: |
| Objective To determine the dose-rates on/over the surface of 10 cylindrical radio-models,which belong to the Metrology Station of Radio-Geological Survey of CNNC. Methods The dose-rates on/over the surface of 10 cylindrical radio-models were modeled using the famous Monte Carlo code-MCNP.The dose-rates on/over the surface of 10 cylindrical radio-models were measured by a high gas pressurized ionization chamber dose-rate meter,respectively.The values of dose-rate modeled using MCNP code were compared with those obtained by us in the present experimental measurement,and with those obtatined by other workers previously.Some factors causing the discrepancy between the data obtained by us using MCNP code and the data obtained using other methods are discussed in this paper. Results The data of dose-rates on/over the surface of 10 cylindrical radio-models,obtained using MCNP code,were in good agreement with those obtained by other workers using the theoretical method.They were within the discrepancy of ±5% in general, and the maximum discrepancy was less than 10%. Conclusions As if each factor needed for the Monte Carlo code is correct,the dose-rates on/over the surface of cylindrical radio-models modeled using the Monte Carlo code are correct with an uncertainty of 3%. |
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