Dose Coefficient Calculation of External Exposure of Radionuclides Based on Chinese Reference Voxel Phantom

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2016, Vol. 33 ›› Issue (5): 613-624.

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Dose Coefficient Calculation of External Exposure of Radionuclides Based on Chinese Reference Voxel Phantom

LU Wei^1,2,3, WU Zhen^1,2, QIU Rui^1,2, LI Chunyan^1,2, YANG Bo^1,2, LI Junli^1,2

1. Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
2. Key Laboratory of Particle and Radiation Imaging, Tsinghua University, Ministry of Education, Beijing 100084, China;
3. Institute for Disease Control and Prevention, PLA, Beijing 100071, China

Received:2016-01-29 Revised:2016-02-17 Online:2016-09-25 Published:2016-09-25

Abstract

Abstract: Dose coefficients for external photon radiation are widely used for assessment of radiation dose to public and workers due to ground surface contamination and air immersion of radionuclides released in nuclear accidents. Dose coefficients based on Chinese reference voxel phantom were presented. Photons that incident into the cylinder, which is slightly larger than phantom, is simulated using Geant4, including distributions of angle, height and energy of photons; Secondly, photons are sampled on surface of cylinder around Chinese Reference Male/Female Voxel Phantom with MCNPX 2.4.k from the above source, dose coefficients of 20 initial gamma ray energies, from 15keV to 10 MeV, are calculated. Thirdly, dose coefficients of 68 important nuclides are evaluated by combining of decay data from ICRP 107 and photon coefficients using cubic-spline fitting. GB/T 17982-2000 shows an overestimation for ground contamination while an underestimation of high Z nuclides for air immersion compared to our results.

Key words: dose coefficients, Chinese reference voxel phantom, effective dose

CLC Number:

R144.1

LU Wei, WU Zhen, QIU Rui, LI Chunyan, YANG Bo, LI Junli. Dose Coefficient Calculation of External Exposure of Radionuclides Based on Chinese Reference Voxel Phantom[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2016, 33(5): 613-624.

References

[1] 任天山. 核事故应急情况下公众受照剂量估算的模式和参数[S]. GB/T 17982-2000, 中华人民共和国国家标准, 2000.
[2] ECKERMAN K F, RYMAN J C. External exposure to radionuclides in air, water and soil[R]. Federal Guidance Report No. 12, Washington DC:US Environmental Protection Agency, 1993.
[3] ECKERMAN K F, RICHARD W L, CHRISTOPHER B N, JEROME S P, ALLANC B R. Cancer risk coefficients for environmental exposure to radionuclides[R]. Federal Guidance Report No.13, Washington DC:US Environmental Protection Agency, 1999.
[4] Generic models for use in assessing the impact of discharges of radioactive substances to the environment[R]. Safety Reports Series No.19, Vienna Austria:International Atomic Energy Agency, 2001.
[5] 1990 Recommendations of the international commission on radiological protection[R]. ICRP Publication 60. ICRP, 1991.
[6] Radionuclide transformations: energy and intensity of emissions[R]. ICRP Publication 38. ICRP, 1983.
[7] PETOUSSI-HENSS N, SCHLATTL H, ZANKL M, ENDO A, SAITO K. Organ doses from environmental exposures calculated using voxel phantoms of adults and children [J]. Physics in Medicine and Biology, 2012, 57:5679-5713.
[8] SONG J Y, JANG Han-Ki, LEE Jai-Ki, NOH S, CHO Gyuseong. External dose-rate conversion factors of radionuclides for air submersion, ground surface contamination and water immersion based on the new ICRP dosimetric setting [J]. Radiation Protection Dosimetry, 2013, 156(1):7-24.
[9] LIU Liye, ZENG Zhi, LI Junli, QIU Rui, ZHANG Binquan, MA Jizeng. Organ dose conversion coefficients on an ICRP-based Chinese adult male voxel model from idealized external photons exposures [J]. Physics in Medicine and Biology, 2009, 54:6645-6673.
[10] 刘立业. 中国成年男性参考人体素模型及在剂量测量评价中的应用[D]. 北京:清华大学,2010.
[11] Conversion coefficients for radiological protection quantities for external radiation exposures[R]. ICRP Publication 116, ICRP, 2010.
[12] SAITO K, JACOB P. Gamma ray fields in the air due to sources in the ground [J]. Radiation Protection Dosimetry, 1995, 58(1):29-45.
[13] SAITO K, MORIUCHI S. Development of a Monte Carlo code for the calculation of gamma ray transport in the nature environment [J]. Radiation Protection Dosimetry, 1985, 12(1):21-28.
[14] The 2007 recommendations of the international commission on radiological protection[R]. ICRP Publication 103, ICRP, 2007.
[15] http://www.nist.gov附录A 单能光子环境外照射剂量转换系数

Dose Coefficient Calculation of External Exposure of Radionuclides Based on Chinese Reference Voxel Phantom

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