| 中高能质子入射碎片质量分布研究 |
| |
| 引用本文： | 肖玉衡,樊胜.中高能质子入射碎片质量分布研究[J].中国物理 C,2002,26(12):1247-1253. |
| |
| 作者姓名： | 肖玉衡 樊胜 |
| |
| 作者单位： | [1]湖南益阳师范高等专科学校物理系，湖南益阳413049 [2]中国原子能科学研究所，北京102413 |
| |
| 基金项目： | 国家重点基础研究发展规划项目 (G1 9990 2 2 60 0 )资助~~ |
| |
| 摘 要： | 中高能质子轰击靶的碎片的质量分布是了解散裂中子靶的放射性累积和对靶材料性能的影响的一个重要方面.利用在级联-激子模型(CEM)的基础上发展起来的“多步动力学”模型(MSDM,Many Stage Dynamical Model)分别研究了入射质子能量为334,572,775,1200,1500和2600MeV轰击Nb靶,329,555,760,1200,1500和2600MeV轰击197Au靶,160,230,271,322,533,660,759,1400,1600和2600MeV轰击Pb靶引起的碎片的质量分布,并和实验测量数据进行了比较.
|
| 关 键 词： | 碎片 质量分布 “多步动力学”模型(MSDM) |
| 收稿时间： | 2002-1-6 |
Analysis for Mass Distribution of Proton-Induced Rea ctions in Intermediate Energy Range |
| |
| XIAO Yu-Heng FAN Sheng ,.Analysis for Mass Distribution of Proton-Induced Rea ctions in Intermediate Energy Range[J].High Energy Physics and Nuclear Physics,2002,26(12):1247-1253. |
| |
| Authors: | XIAO Yu-Heng FAN Sheng |
| |
| Institution: | XIAO Yu-Heng1 FAN Sheng 2,1) 1 |
| |
| Abstract: | The mass and charge distribution of residual products produced in the spallation reactions needs to be studied,because it can provide useful information for the disposal of nuclear waste and residual radioactivity generated by the spallation neutron target system. In present work,the Many Stage Dynamical Model(MSDM) is based on the Cascade-Exciton Model (CEM) We use it to investigate the mass distribution of Nb,Au and Pb proton-induced reactions in energy range from 100 MeV to 3 GeV. The agreement between the MSDM simulations and the measured data is good in this energy range,and deviations mainly show up in the mass range of 90 _150 for the high energy proton incident upon Au and Pb. = = |
| |
| Keywords: | fragment mass distribution many stage dynamical model(MSDM) |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《中国物理 C》浏览原始摘要信息 |
| 点击此处可从《中国物理 C》下载免费的PDF全文 |
|
