Calculation of athermal recombination corrected dpa cross sections for proton, deuteron and heavy-ion irradiations using the PHITS code
Calculation of athermal recombination corrected dpa cross sections for proton, deuteron and heavy-ion irradiations using the PHITS code
复制标题
使用 PHITS 代码计算质子、氘核和重离子辐照的非热重组校正 dpa 截面
DOI：
10.1051/epjconf/202023920011
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发表时间：
2020
影响因子：
--
通讯作者：
Meigo Shin-ichiro
中科院分区：
文献类型：
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作者：
Iwamoto Yosuke;Meigo Shin-ichiro
为了提供能量范围从1 MeV/u到3 GeV/u的质子、氘和重离子辐照的无热复合校正dpa（arc-dpa）截面，在PHITS中的辐射损伤模型中实现了铝、铜和钨的缺陷产生效率。一般情况下，dpa截面随入射粒子质子数的增加而增大。对于高能（约1GeV/u）质子和氘核辐照，由于核反应产生的二次电子，dpa截面接近于12 C辐照下的dpa截面。在入射能量超过100 MeV的质子和氘核辐照下，arc-dpa截面与常规Norgett-Robinson-Torrens dpa（NRT-dpa）截面的比值约为0.2。对于~（12）C和~（48）Ca，当入射束能量低于3GeV/u时，这个比值在0.3 ~ 0.4之间。
To provide the athermal recombination corrected dpa (arc-dpa) cross sections for proton, deuteron and heavy ion irradiations in the energy range from 1 MeV/u to 3 GeV/u., the defect production efficiencies for aluminium, copper and tungsten were implemented in the radiation damage model in PHITS. In general, the dpa cross section is large with increasing the number of protons of incident particle. For high-energy (around 1 GeV/u) proton and deuteron irradiation, the dpa cross section is close to that under12C irradiation due to secondaries produced by the nuclear reaction. The ratio of arc-dpa cross section to the conventional Norgett-Robinson-Torrens dpa (NRT-dpa) cross section is around 0.2 with incident energies over 100 MeV for proton and deuteron irradiations. For the case of12C and48Ca, this ratio is ranged from 0.3 to 0.4 for incident beam energies below 3 GeV/u.