| The dependence of cumulative ^238U（n,f）fission yield on incident-neutron energy |
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| 作者姓名： | ZHENG Na ZHONG Chunlai MA Liyong CHEN Zhongjing LI Xiangqing LIU Tingjin CHEN Jinxiang FAN Tleshuan |
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| 作者单位： | ZHENG Na,ZHONG Chunlai,MA Liyong,CHEN Zhongjing,LI Xiangqing,CHEN Jinxiang,FAN Tieshuan(State Key Laboratory of Nuclear Physics and Nuclear Technology and School of Physics,Peking University,Beijing 100871,China);LIU Tingjin(China Nuclear Data Center,Beijing 102413,China) |
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| 基金项目： | the Research Fund for the Doctoral Program of Higher Education of China，the Major State Basic Research Development Program of China，the National Fund for Fostering Talents of Basic Science of China |
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| 摘 要： |
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| 关 键 词： | 中子 核技术 能级 铀 |
The dependence of cumulative 238U(n,f) fission yield on incident-neutron energy |
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| ZHENG Na,ZHONG Chunlai,MA Liyong,CHEN Zhongjing,LI Xiangqing,LIU Tingjin,CHEN Jinxiang,FAN Tleshuan.The dependence of cumulative 238U(n,f) fission yield on incident-neutron energy[J].Nuclear Science and Techniques,2009,20(5):281-285. |
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| Authors: | ZHENG Na ZHONG Chunlai MA Liyong CHEN Zhongjing LI Xiangqing LIU Tingjin CHEN Jinxiang FAN Tieshuan |
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| Affiliation: | 1. State Key Laboratory of Nuclear Physics and Nuclear Technology and School of Physics,Peking University,Beijing 100871,China
2. China Nuclear Data Center,Beijing 102413,China |
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| Abstract: | This work is aim at studying the dependence of fission yields on incident neutron energy,so as to produce evaluated yield sets of the energy dependence.Experimental data at different neutron energies for gas fission products 85m,87,88Kr and 138Xe resulting from the 238U(n,f) reaction are processed using codes AVERAGE for weighed average and ZOTT for simultaneous evaluation.Energy dependence of the cumulative fission product yields on the incident neutron is presented.The evaluated curve of product yield is compared with the results calculated by the TALYS-0.64 code.The present evaluation is consistent with other main libraries in error permission.The fit curve of 87,88Kr can be recommended to predict the unmeasured fission yields.Comparisons of the evaluated energy dependence curves with theoretical calculated results show that the predictions using purely theoretical model for the fission process are not sufficiently accurate and reliable for the calculations of the cumulative fission yields for the 238U(n,f). |
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| Keywords: | Cumulative yield Evaluation 238U Gas nuclides |
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