| 引用本文: | 王庆艳,耿洪滨,李兴冀,张中华,何世禹,杨德庄.低能质子辐射硬质硼硅玻璃的模拟计算[J].哈尔滨工业大学学报,2011,43(1):7.DOI:10.11918/j.issn.0367-6234.2011.01.002 |
| WANG Qing-yan,GENG Hong-bin,LI Xing-ji,ZHANG Zhong-hua,HE Shi-yu,YANG De-zhuang.Simulation of radiation effects on hard borosilicate glass by low-energy protons[J].Journal of Harbin Institute of Technology,2011,43(1):7.DOI:10.11918/j.issn.0367-6234.2011.01.002 |
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| 摘要: |
| 为获得低能质子辐射时硬质硼硅玻璃的损伤特征,利用蒙特卡罗(MC)计算程序——SRIM模拟了入射质子在硬质硼硅玻璃中产生的电离和非电离能损.模拟结果表明:能量为40～200keV的质子损伤主要发生在表面;电离能损是能量损失的主要形式,峰值能量为80keV;非电离能损随能量降低而增大,导致氧、硅和硼等空位型缺陷的产生;空位分布与声子分布及慢化质子的沉积相同,均满足Bragg峰型分布特性.40～200keV质子的电离和非电离能损均会导致硬质硼硅玻璃微观结构的变化. |
| 关键词: 质子辐射 硼硅玻璃 SRIM 能量损失 Bragg峰型 |
| DOI：10.11918/j.issn.0367-6234.2011.01.002 |
| 分类号:TQ171.1 |
| 基金项目:国家重点基础研究发展计划资助项目(61343010306) |
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| Simulation of radiation effects on hard borosilicate glass by low-energy protons |
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WANG Qing-yan1, GENG Hong-bin2, LI Xing-ji2, ZHANG Zhong-hua1, HE Shi-yu2, YANG De-zhuang2
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1.School of Astronautics,Harbin Institute of Technology,150001 Harbin,China;2.Space Materials and Environment Engineering Laboratory,Harbin Institute of Technology,150001 Harbin,China)
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| Abstract: |
| To obtain damage behaviors in hard borosilicate glass,proton-induced ionizing and nonionizing energy loss were calculated by using the SRIM Monte Carlo program. The result shows that for protons with the energy range of 40-200 keV,the main damage is limited to the surface of borosilicate glass,and the ionizing energy loss,with the peak position of 80keV,is the main type of energy loss. The nonionizing energy loss increases with the decreasing of energy and induces the vacancy production of O,Si and B etc. Both vacancy distribution and phonon distribution,similar to the proton deposition,follow the property of Bragg-type curve. Both the ionizing energy loss and nonionizing energy loss by protons with the energy range of 40-200 keV can change the microstructure of hard borosilicate glass. |
| Key words: proton irradiation borosilicate glass SRIM energy loss Bragg-type curve |
