| 46.7MeV/u 12C轰击159Tb、197Au和209Bi的裂变测量及分析 |
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| 引用本文： | 罗清政,戴光羲,漆玉金,阎德宏,吴和宇,靳根明.46.7MeV/u 12C轰击159Tb、197Au和209Bi的裂变测量及分析[J].原子核物理评论,1993,10(3):39-42. |
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| 作者姓名： | 罗清政 戴光羲 漆玉金 阎德宏 吴和宇 靳根明 |
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| 作者单位： | 中国科学院近代物理研究所 |
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| 摘 要： | 用46.7MeV/u~(12)C轰击~(159)Tb、~(197)Au、~(209)Bi,测量关联裂片的速度和角度,研究了线性动量转移(LMT)、质量和出平面角分布,提取了核温度,应用级联两体统计衰变理论进行了拟合与解释,结果表明:在～50MeV/u入射能的中能重离子碰撞中,以非完全熔合方式形成了核温度高达4～5MeV的类复合核,其后通过裂变、蒸发级联统计两体衰变而退激。 The velocities and angles of fission partners emitted from reactions in ~(12)C+~(159)Tb, ~(197)Au,~(209)Bi systems with bombarding energy of 46.7MeV/u are measured. The linear momentum transferfrom projectile to target、mass and out-of-reaction plane angle distributions of fission fragments arestudied, and the temperatures of the target residues are extracted. These results have been explained by statistical binary decay model. It seems that the compound-likesystem with high temperature...
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| 关 键 词： | 线性动量转移（LMT） 级联两体统计衰变 非完全熔合 核温度 |
| 收稿时间： | 1900-01-01 |
Fission Measurement and Analysis on 46. 7 MeV/u 12C+159Tb, 197Au, 209Bi System |
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| Institution: | Institute of Modern Physics; Academia Sinica; Lanzhou 730000 |
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| Abstract: | The velocities and angles of fission partners emitted from reactions in ~(12)C+~(159)Tb, ~(197)Au,~(209)Bi systems with bombarding energy of 46.7MeV/u are measured. The linear momentum transferfrom projectile to target、mass and out-of-reaction plane angle distributions of fission fragments arestudied, and the temperatures of the target residues are extracted. These results have been explained by statistical binary decay model. It seems that the compound-likesystem with high temperature... |
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