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Cross section measurements on zirconium isotopes for ~14 mev neutrons and their theoretical calculations of excitation functions

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Chinese Physics C 2020年第12期44卷 97-102页

作者： Yong Li Yueli Song Fengqun Zhou Xinyi Chang Xiaopeng Zhang Mingli Tian Shuqing Yuan School of Electrical and Mechanical Engineering Pingdingshan UniversityPingdingshan 467000China School of Physics and Engineering Zhengzhou universityZhengzhou 450001China

The cross sections for the 94Zr(n,d*)93m+gY,96Zr(n,γ)97Z,96Zr(n,2n)95Zr,90Zr(n,α)87mSr,94Zr(n,α)91Sr,90Zr(n,p)90mY,92Zr(n,p)92Y,and 94Zr(n,p)94Y reactions have been measured in the neutron energy range of 13.5-14.8 mev by means of the activation *** neutrons were produced via the D-T reaction.A high-purity germanium detector with high energy resolution was used to measure the inducedγ*** combination with the nuclear reaction theoretical models,the excitation curves of the above-mentioned eight nuclear reactions within the incident neutron energy range from the threshold to 20 mev were obtained by adopting the nuclear theoretical model program system *** resulting experimental cross sections were analyzed and compared with the experimental data from published *** were performed using Talys-1.9 and are in agreement with our experimental results,previous experimental values,as well as results of the theoretical excitation curves at the corresponding *** theoretical excitation curves generally match the experimental data well.

关键词： zirconium isotopes cross section 14 mev neutrons activation methods theoretical calculations

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Cross-section measurements of(n,2n)and(n,p)reactions on ^(124,126,128,130,131,132)Xe in the 14 mev region and theoretical calculations of their excitation functions

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Chinese Physics C 2022年第4期46卷 79-91页

作者： Junhua Luo Li Jiang Juncheng Liang Fei Tuo Long He Liang Zhou Institute of New Energy Hexi UniversityZhangye 734000China School of Physics and Electromechanical Engineering Hexi UniversityZhangye 734000China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China National Institute of Metrology Beijing 100029China National Institute for Radiological Protection China CDCBeijing 100088China

The reaction cross-sections of ^(124)Xe(n,2n)^(123)Xe,^(126)Xe(n,2n)^(125)Xe,^(128)Xe(n,2n)^(127)Xe,^(130)Xe(n,2n)^(129)mXe,^(132)Xe(n,2n)^(131)mXe,^(130)Xe(n,p)^(130)I,^(131)Xe(n,p)^(131)I,and ^(132)Xe(n,p)^(132)I were measured at the 13.5,13.8,14.1,14.4,and 14.8 mev neutron *** monoenergetic neutrons were generated via the ^(3)H(d,n)^(4)He reaction at the China Academy of Engineering Physics using the K-400 Neutron Generator with a solid ^(3)H-Ti target.A high-purity germanium detector was employed to measure the activities of the *** reactions ^(93)Nb(n,2n)^(92m)Nb and ^(27)Al(n,α)^(24)Na were adopted for neutron flux *** cross sections of the(n,2n)and(n,p)reactions of the xenon isotopes were obtained within the 13-15 mev neutron energy *** cross-sections were then compared with the IAEA-exchange format(EXFOR)database-derived experimental data,together with the evaluation results of the CENDL-3,ENDF/B-Ⅷ.0,JENDL-4.0,RUSFOND,and JEFF-3.3 data libraries,as well as the theoretical excitation function obtained using the TALYS-1.95 *** cross-sections of the reactions(except for the ^(124)Xe(n,2n)^(123)Xe and ^(132)Xe(n,p)^(132)I)at 13.5,13.8,and 14.1 mev are reported for the first time in this *** obtained results are beneficial in providing better cross-section constraints for the reactions in the 13-15 mev region,thus improving the quality of the corresponding ***,these data can also be used for the verification of relevant nuclear reaction model parameters.

关键词： ^(124,126,128,130,131,132)Xe isotopes 14 mev neutrons (n,2n)and(n,p)reactions Excitation function TALYS-1.95 code

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