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LUO Wen, ZHU Xiaohui, SONG Yingming, ZHU Zhichao. PuO2颗粒对自发α射线的能量自吸收效应评估研究(Withdraw)[J]. Nuclear Physics Review, 2016, 33(3): 326-329.
Citation: LUO Wen, ZHU Xiaohui, SONG Yingming, ZHU Zhichao. PuO2颗粒对自发α射线的能量自吸收效应评估研究(Withdraw)[J]. Nuclear Physics Review, 2016, 33(3): 326-329.
shu

PuO2颗粒对自发α射线的能量自吸收效应评估研究(Withdraw)

  • School of Nuclear Science and Technology, University of South China, Hengyang 421001, Hunan, China

Funds:  National Natural Science Foundation of China (11347028); Research Foundation of Education Bureau of Hunan Province, China (13A080, 14A120); Foundation for University Key Teachers from the Ministry of Education of China (20134324120003); Construct Program of the key Discipline in Hunan Province
  • Received Date: 2015-08-19
  • Rev Recd Date: 2015-10-20
  • Publish Date: 2016-09-20

  • 构建PuO2颗粒状α发射体的球体几何模型，采用蒙特卡罗和射程经验公式模拟计算α射线在PuO2颗粒中的射程能量关系式及α射线从PuO2颗粒表面出射的能谱分布，研究因PuO2颗粒对自发α射线的能量自吸收效应导致的对人体内照射剂量评估的影响。研究结果表明，PuO2粒径越大，其对自发α射线的能量自吸收效应越明显，内照射剂量的修正效果越好；当PuO2粒径在2 μm以上时，内照射剂量的修正效果大于5%。本研究的结果对吸入放射性物质所致人体内照射剂量的准确估算有重要的参考价值，并可应用于放射性核素肿瘤治疗等领域的微剂量学研究。

    A sphere geometry model for plutonium oxide-based alpha emitter was setup.The range of alpha particle in plutonium oxide pellet versus its energy and the spectral distribution of alpha particle emerging from the emitter surface were calculated using Monte Carlo method combined with the empirical formula of range.The internal radiation dose resulted by self-absorption effect of α-rays emitted spontaneously in plutonium oxide was investigated accordingly.The result shows that the larger particle size the plutonium oxide-based alpha emitter has,the more obvious the self-absorption effect is and the better the correction effect of the intake absorbed dose that effects on human lung has.For plutonium oxide pellet with its particle size exceeding 2 μm,the correction quantity is expected to be larger than 5%.Our work is beneficial for a precise evaluation of internal radiation dose induced by inhaled radioactive material and microdosimetry study in radionuclide tumor therapy.

  • [1] MUGGENBURG B A,GUILMETTE R A,HAHN F F,et al.Radiation Research,2008,170(6):736.
    [2] YE Changqing.Radiation hazards and evaluation[M].Beijing,Military Medical and Science Publishing House,1999(in Chinese)(叶常青.辐射危害与评价[M].北京:军事医学科学出版社,1999.)
    [3] FISHER D R,WELLER R E.Health Physics,2010,99(3):357.
    [4] WANG Yuming,SHEN Huijiong,ZHUANG Xinzhe,et al.Occupational Health&Emergency Rescue,2001,19(4):171.(in Chinese)(王玉民,沈慧炯,庄心哲,等.职业卫生与应急救援,2001,19(4):171.)
    [5] ICRP:Human respiratory tract model for radiological protection[M].Oxford:Pergamon press,1994:254.
    [6] CROFT S.T Nucl Instr Meth A,1989,281(1):103.
    [7] TSUJIMURA N,YOSHIDA T,MOMOSE T.Radiation Protection Dosimetry,2007,126(1-4):168.
    [8] PAVLOVIČM,STRAŠÍK I.Nucl Instr Meth B,2007,257(1-2):601.
    [9] WANG Xiaolian,LI Cheng,SHAO Ming.Particle Detection Technique[M].Hefei:University of Science and Technology of China Publishing House,2009:30.(in Chinese)(汪晓莲,李澄,邵明.粒子探测技术[M].合肥:中国科学技术大学出版社,2009:30.)
    [10] BROWNE E,TULI J K.Nuclear Data Sheets,2007,108(3):681.
    [11] BROWNE E.Nuclear Data Sheets,2003,98(3):665.
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PuO2颗粒对自发α射线的能量自吸收效应评估研究(Withdraw)

  • School of Nuclear Science and Technology, University of South China, Hengyang 421001, Hunan, China
Funds:  National Natural Science Foundation of China (11347028); Research Foundation of Education Bureau of Hunan Province, China (13A080, 14A120); Foundation for University Key Teachers from the Ministry of Education of China (20134324120003); Construct Program of the key Discipline in Hunan Province
  • Received Date: 2015-08-19
  • Rev Recd Date: 2015-10-20
  • Publish Date: 2016-09-20

Abstract: 

构建PuO2颗粒状α发射体的球体几何模型，采用蒙特卡罗和射程经验公式模拟计算α射线在PuO2颗粒中的射程能量关系式及α射线从PuO2颗粒表面出射的能谱分布，研究因PuO2颗粒对自发α射线的能量自吸收效应导致的对人体内照射剂量评估的影响。研究结果表明，PuO2粒径越大，其对自发α射线的能量自吸收效应越明显，内照射剂量的修正效果越好；当PuO2粒径在2 μm以上时，内照射剂量的修正效果大于5%。本研究的结果对吸入放射性物质所致人体内照射剂量的准确估算有重要的参考价值，并可应用于放射性核素肿瘤治疗等领域的微剂量学研究。

A sphere geometry model for plutonium oxide-based alpha emitter was setup.The range of alpha particle in plutonium oxide pellet versus its energy and the spectral distribution of alpha particle emerging from the emitter surface were calculated using Monte Carlo method combined with the empirical formula of range.The internal radiation dose resulted by self-absorption effect of α-rays emitted spontaneously in plutonium oxide was investigated accordingly.The result shows that the larger particle size the plutonium oxide-based alpha emitter has,the more obvious the self-absorption effect is and the better the correction effect of the intake absorbed dose that effects on human lung has.For plutonium oxide pellet with its particle size exceeding 2 μm,the correction quantity is expected to be larger than 5%.Our work is beneficial for a precise evaluation of internal radiation dose induced by inhaled radioactive material and microdosimetry study in radionuclide tumor therapy.

LUO Wen, ZHU Xiaohui, SONG Yingming, ZHU Zhichao. PuO2颗粒对自发α射线的能量自吸收效应评估研究(Withdraw)[J]. Nuclear Physics Review, 2016, 33(3): 326-329.
Citation: LUO Wen, ZHU Xiaohui, SONG Yingming, ZHU Zhichao. PuO2颗粒对自发α射线的能量自吸收效应评估研究(Withdraw)[J]. Nuclear Physics Review, 2016, 33(3): 326-329.
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