| 用阻塞效应测量28Si 13.095MeV激发态能级寿命 |
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| 引用本文： | 金卫国,赵国庆,邵其鋆,任月华,吴向坚,周筑颖.用阻塞效应测量28Si 13.095MeV激发态能级寿命[J].物理学报,1987,36(6):819-822. |
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| 作者姓名： | 金卫国 赵国庆 邵其鋆 任月华 吴向坚 周筑颖 |
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| 作者单位： | 复旦大学原子核科学系 |
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| 摘 要： | 改进Al单晶样品的处理方法,得到了高质量的样品。进行了Al单晶辐照损伤实验,直接测量了Ep=1565keV时27Al(p,α)24Mg共振所形成的28Si 13.095MeV激发态能级寿命。采用MonteCarlo模拟和“分析”方法计算得到其寿命值τ=16.3±2.4as,对应的能级宽度Γ=40±6eV,与文献报道的共振产额法结果符合得较好。
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| 收稿时间： | 1986-06-18 |
THE LIFETIME MEASUREMENT OF THE 28Si COMPOUND STATE OF 13.095 MeV BY THE BLOCKING EFFECT |
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| JIN WEI-GUO,ZHAO GUO-QING,SHAO QI-YUN,REN YUE-HUA,WU XIANG-JIAN and ZHOU ZHU-YING.THE LIFETIME MEASUREMENT OF THE 28Si COMPOUND STATE OF 13.095 MeV BY THE BLOCKING EFFECT[J].Acta Physica Sinica,1987,36(6):819-822. |
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| Authors: | JIN WEI-GUO ZHAO GUO-QING SHAO QI-YUN REN YUE-HUA WU XIANG-JIAN and ZHOU ZHU-YING |
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| Abstract: | The methods for treating the Al single crystals have been improved and high quality crystals are obtained. The experiment of radiation damage in the Al crystals is carried out and the lifetime of the 28Si compound state of 13.095 MeV, excited by the 27Al(p,a)24 Mg resonant reaction at Ep = 1565keV, is measured. The lifetime, τ = 16.3±2.4 as, is deduced by comparison with the calibration curves calculated with Monte Carlo model and "analytical" methods. The corresponding energy level widtk, Γ = 40±6eV, is in good agreement with that reported in the literature. |
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