Simulation of Proton Neutralization Effect for Neutron Dosimetry
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概要
- 論文の詳細を見る
Neutron dose is transferred to biological materials through the recoil protons produced by elastic scattering. When a low-velocity proton collides with the atoms or molecules of a target, it changes to a hydrogen atom by electron capture; this hydrogen atom then changes to a proton by losing the electron. Because the hydrogen atom has a different ionization cross section from that of a proton, the charge exchange processes need to be considered to calculate stopping power for low energy protons. The proton neutralization effect has been simulated by using a proton track structure code developed by taking into account charge exchange processes. The microdosimetric spectrum for 1MeV neutrons was calculated by assuming a continuous slowing down approximation (csda) and the results of the proton track code. It was found that hydrogen atoms after proton neutralized by electron capture contribute about 24% to neutron dose.
- 日本放射線影響学会の論文
- 2004-10-10
著者
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Endo Satoru
Quantum Energy Applications Graduate School Of Engineering Hiroshima University:(present Address)int
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Endo Satoru
Quant. Energ. Applic. Grad. Sch. Eng. Hiroshima Univ.
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