Simulation Investigations on the Absorbed Dose in Lung Tissue from Inhaled Tritiated Particles

SUN Ruofan; MAO Li; WU Qiqi; AN Zhu

doi:10.11804/NuclPhysRev.32.02.212

PDF
Cite
Share
facebook

twitter

google

linkedin

Volume 32 Issue 2

Jun. 2015

Turn off MathJax

Article Contents

Article Navigation > Nuclear Physics Review > 2015 > 32(2): 212-217

SUN Ruofan, MAO Li, WU Qiqi, AN Zhu. Simulation Investigations on the Absorbed Dose in Lung Tissue from Inhaled Tritiated Particles[J]. Nuclear Physics Review, 2015, 32(2): 212-217. doi: 10.11804/NuclPhysRev.32.02.212

Citation:

SUN Ruofan, MAO Li, WU Qiqi, AN Zhu. Simulation Investigations on the Absorbed Dose in Lung Tissue from Inhaled Tritiated Particles[J]. Nuclear Physics Review, 2015, 32(2): 212-217. doi: 10.11804/NuclPhysRev.32.02.212

Simulation Investigations on the Absorbed Dose in Lung Tissue from Inhaled Tritiated Particles

doi: 10.11804/NuclPhysRev.32.02.212

Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science andTechnology, Sichuan University, Chengdu 610064, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-06-20

Abstract

Some tritium relevant nuclear facilities, such as Tokamak, can produce tritiated particles. There is the possibility for the staffs to inhale the tritiated particles by accident in the process of maintenance or decommission of these facilities. Tritium decays to 3He, during which the beta electron and the internal bremsstrahlung are released. Meanwhile, the released electrons will interact with the surrounding atoms, and the external bremsstrahlung will be generated. All the electrons, internal bremsstrahlung and external bremsstrahlung will deposit the radiation energies to lung tissues and generate the radiation damage. In this paper we studied the radiation doses by inhaled tritiated particles in lung tissues by Monte Carlo code PENELOPE, in particular, internal bremsstrahlung contribution was included. Our results demonstrated that (1) the dose caused by electron radiation is far higher than those of external and internal bremsstrahlung, which however shall not be negligible due to their long-distance effects; (2) the dose caused by electron radiation decreases as the particle size and metal atomic number Z increase; (3) the dose caused by external bremsstrahlung decreases as the particle size increases, but increases as the metal Z increases; (4) the dose caused by internal bremsstrahlung decreases as the particle size and metal Z increase.
- tritiated particle,
- lung tissue,
- absorbed dose
References
Proportional views

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Get Citation

PDF

XML

Article Metrics

Article views(1347) PDF downloads(516) Cited by()

Proportional views

Simulation Investigations on the Absorbed Dose in Lung Tissue from Inhaled Tritiated Particles

doi: 10.11804/NuclPhysRev.32.02.212

Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science andTechnology, Sichuan University, Chengdu 610064, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-06-20

Key words:

Abstract: Some tritium relevant nuclear facilities, such as Tokamak, can produce tritiated particles. There is the possibility for the staffs to inhale the tritiated particles by accident in the process of maintenance or decommission of these facilities. Tritium decays to 3He, during which the beta electron and the internal bremsstrahlung are released. Meanwhile, the released electrons will interact with the surrounding atoms, and the external bremsstrahlung will be generated. All the electrons, internal bremsstrahlung and external bremsstrahlung will deposit the radiation energies to lung tissues and generate the radiation damage. In this paper we studied the radiation doses by inhaled tritiated particles in lung tissues by Monte Carlo code PENELOPE, in particular, internal bremsstrahlung contribution was included. Our results demonstrated that (1) the dose caused by electron radiation is far higher than those of external and internal bremsstrahlung, which however shall not be negligible due to their long-distance effects; (2) the dose caused by electron radiation decreases as the particle size and metal atomic number Z increase; (3) the dose caused by external bremsstrahlung decreases as the particle size increases, but increases as the metal Z increases; (4) the dose caused by internal bremsstrahlung decreases as the particle size and metal Z increase.

Citation: