浏览全部资源
扫码关注微信
151Eu中子俘获截面中152Eu同质异能态贡献的模型检验和分析
Model calculation and analysis of 151Eu neutron capture cross section contributed by isomeric state of 152Eu
- 核技术 2018年41卷第11期 文章编号：110503
- 作者机构：
1.中国科学院上海应用物理研究所 上海 201800
2.中国科学院大学 北京 100049
3.上海科技大学 上海 201210
4.中山大学 物理与天文学院 珠海 519082
5.上海大学 材料科学与工程学院 上海 200044
- 作者简介：
[ "薛韩, 女, 1992年出生, 2014年毕业于上海大学, 现为硕士研究生, 研究领域为实验核物理专业", "XUE Han, female, born in 1992, graduated from Shanghai University in 2014, master student, focusing on experimental nuclear physics" ]
马余刚, E-mail:mayugang@sinap.ac.cnMA Yugang, E-mail:mayugang@sinap.ac.cn
王宏伟, E-mail:wanghongwei@sinap.ac.cnWANG Hongwei, E-mail:wanghongwei@sinap.ac.cn
- 基金信息：上海光源线站工程(1173SRCZ01);国家自然科学基金创新研究群体(11421505);中国科学院战略性先导科技专项B(XDB160203);国家自然科学基金(11475245)
DOI：10.11889/j.0253-3219.2018.hjs.41.110503
中图分类号： O571.1收稿日期：2018-03-19，
修回日期：2018-05-25，
纸质出版日期：2018-11-10
- 稿件说明：
移动端阅览
薛韩, 马余刚, 王宏伟, 等. 151Eu中子俘获截面中152Eu同质异能态贡献的模型检验和分析[J]. 核技术, 2018,41(11):110503
Han XUE, Yugang MA, Hongwei WANG, et al. Model calculation and analysis of 151Eu neutron capture cross section contributed by isomeric state of 152Eu[J]. Nuclear techniques, 2018, 41(11): 110503
薛韩, 马余刚, 王宏伟, 等. 151Eu中子俘获截面中152Eu同质异能态贡献的模型检验和分析[J]. 核技术, 2018,41(11):110503 DOI： 10.11889/j.0253-3219.2018.hjs.41.110503.
Han XUE, Yugang MA, Hongwei WANG, et al. Model calculation and analysis of 151Eu neutron capture cross section contributed by isomeric state of 152Eu[J]. Nuclear techniques, 2018, 41(11): 110503 DOI： 10.11889/j.0253-3219.2018.hjs.41.110503.
摘要
151
Eu中子俘获截面在反应堆物理以及核天体物理慢中子俘获过程中具有重要的作用，由于
152
Eu两个同质异能态（m1，0-；m2，8-）的贡献，使得生成
152
Eu基态和同质异能态的中子俘获截面的测量和区分难度增大。利用核反应理论模型程序-TALYS-1.8，计算了中子能量在0.01~20 MeV区间的
151
Eu（n，γ）
152
Eu基态和同质异能态的中子俘获反应截面，并与EXFOR截面数据库中已有的实验数据进行比较，检验了现有
151
Eu实验数据的可靠性。分析表明：由于
152
Eu基态和第一同质异能态都存在121.8 keV能级的退激，使得它们的截面测量存在较大误差，而基态和第二同质异能态的截面理论值基本与实验值相一致。
Abstract
Background
2
The
151
Eu neutron capture cross-section plays an important role in reactor physics and in the slow neutron capture of nuclear astrophysics.
Purpose
2
This study aims to distinguish two isomers of
152
Eu and measure neutron capture cross-section of
151
Eu.
Methods
2
The
151
Eu(n
γ)
152
Eu reaction cross-sections at the neutron energies from 0.01 MeV to 20 MeV were calculated by using software TALYS-1.8 which is a mature computer code for simulating nuclear reactions in present work. The accuracy of simulation calculation program was verified and compared the theoretical data with the existing experimental data from EXFOR cross-section database and the latest neutron activation cross-section data.
Results & Conclusions
2
The results show that there is a large error in the cross-section measurement of the ground state and the first isomeric state due to the interference of the 121.78 keV energy level
whereas the theoretical values of the ground state and the second isomeric state are basically consistent with the existing experimental values.
关键词
Keywords
references
S F Mughabghab , M Divadeenam , N E Holden . Neutron resonance parameters and thermal cross sections , : New York Academic Press , 1981 .
N Otuka , E Dupont , V Semkova , . Nuclear data sheets . IAEA-EXFOR Database , 2014 . 120 272 - 276 . DOI: 10.1016/j.nds.2014.07.065 http://doi.org/10.1016/j.nds.2014.07.065 .
A E Johnsrud , M G Silbert , H H Barschall . Energy dependence of fast-neutron activation cross sections . Physical Review , 1959 . 116 ( 4 ): 927 - 936 . DOI: 10.1103/PhysRev.116.927 http://doi.org/10.1103/PhysRev.116.927 .
Y N Trofimov . Cross-section of 151 Eu(n, γ) 152m1 Eu (half-life=9.3 h) reaction in the energy range 0.5~2.2 MeV . Vop At Nauki i Tekhn Ser Yadernye Konstanty , 1988 . ( 4 ): 3 .
W X Yu , H L Lu , W R Zhao . Activation cross section measurement for the Eu(n, γ) reaction . Chinese Journal of Nuclear Physics , 1993 . 15 ( 1 ): 71 - 73 .
Xia Y J, Long X G, Luo X B, et al . Activation cross section measurement for the Eu(n, γ) reaction[C]. United States: Conference on Nuclear Data for Science and Technology, Gatlinburg, 1994, (1): 251.
S Badwar , R Ghosh , B M Lawriniang , . 151 Eu(n, γ) 152m1 Eu reaction cross-section measurement at the neutron energies of 1.12, 2.12, 3.12 and 4.12 MeV . Journal of Radioanalytical and Nuclear Chemistry , 2016 . 307 ( 2 ): 1385 - 1390 . DOI: 10.1007/s10967-015-4230-2 http://doi.org/10.1007/s10967-015-4230-2 .
J Best , H Stoll , C Arlandini , . S-process branching at 151 Sm, 154 Eu, 163 Dy . Physical Review C , 2001 . 64 ( 1 ): 289 - 293 . DOI: 10.1103/PhysRevC.64.015801 http://doi.org/10.1103/PhysRevC.64.015801 .
M C Moxon , D A J Endacott , J E Jolly . The neutron capture cross-section of 151 Eu and 153 Eu in the energy 0.1 to 100 keV . Annals of Nuclear Energy , 1976 . 3 ( 7-8 ): 399 - 403 . DOI: 10.1016/0306-4549(76)90039-6 http://doi.org/10.1016/0306-4549(76)90039-6 .
M Mizumoto , A Asami , Y Nakajima , . Average neutron capture cross section of 151 Eu and 153 Eu from 3 to 100 keV . Journal of Nuclear Science and Technology , 1979 . 16 ( 10 ): 711 - 719 . DOI: 10.3327/jnst.16.711 http://doi.org/10.3327/jnst.16.711 .
R L Macklin , P G Young . Neutron capture cross sections of 151 Eu and 153 Eu from 3 to 2 200 keV . Nuclear Science and Engineering , 1987 . 95 ( 3 ): 198 DOI: 10.13182/NSE87-A20447 http://doi.org/10.13182/NSE87-A20447 .
Bokhovko M V, Kononov V N, Rabotnov N S, et al . Neutron radiation cross-section, neutron transmission and average resonance parameters for some fission product nuclei[R]. Fiz.-Energ Institut, Obninsk Reports, 1991, No.2168.
Koning A J, Hilaire S, Duijvestijn M C. TALYS-1.0[C]. Proceedings of the International Conference on Nuclear Data for Science and Technology 2007, EDP Sciences, Nice, France, 2008: 211-214.
R A Lakshmana , R J Rama . Isomer rations in (n, γ) reactions at 25 keV . Physical Review C , 1972 . 6 ( 2 ): 572 - 577 . DOI: 10.1103/PhysRevC.6.572 http://doi.org/10.1103/PhysRevC.6.572 .
Hockenbury R W, Knox H R, Kaushal N N. Fission product capture cross sections in the keV region[20 eV~200 keV] [C]. United States: National Bureau of Standards, 1975, Vol 425.
王 宏伟 , 陈 金根 , 蔡 翔舟 , . 电子直线加速器驱动的光中子源装置的研制 . 核技术 , 2014 . 37 ( 10 ): 100522 DOI: 10.11889/j.0253-3219.2014.hjs.37.100522 http://doi.org/10.11889/j.0253-3219.2014.hjs.37.100522 http://www.j.sinap.ac.cn/hejishu/CN/abstract/abstract273.shtml .
Hongwei WANG , Jingen CHEN , Xiangzhou CAI , . Development of photo-neutron facility driven by electron LINAC . Nuclear Techniques , 2014 . 37 ( 10 ): 100522 DOI: 10.11889/j.0253-3219.2014.hjs.37.100522 http://doi.org/10.11889/j.0253-3219.2014.hjs.37.100522 http://www.j.sinap.ac.cn/hejishu/CN/abstract/abstract273.shtml .
L X Liu , H W Wang , Y G Ma , . Measurements of the total cross section of natBe with thermal neutrons from a photo-neutron source . Nuclear Instruments & Methods in Physics Research B , 2017 . 410 158 - 163 . DOI: 10.116/j.nimb.2017.08.022 http://doi.org/10.116/j.nimb.2017.08.022 .
L X Liu , H W Wang , Y G Ma , . Neutron time-of-flight spectroscopy measurement using a waveform digitizer . Chinese Physics C , 2017 . 40 ( 5 ): 70 - 74 . DOI: 10.1088/1674-1137/40/5/056202 http://doi.org/10.1088/1674-1137/40/5/056202 .
0
浏览量
30
下载量
1
CSCD
- 网络PDF下载
- Meta-XML下载
- BibTeX下载
- Endnote下载
- RefMan 下载
- NoteExpress下载
- NoteFirst下载
关联资源
相关文章
相关作者
相关机构
AI问答- 地址：上海市嘉罗公路2019号 邮编：201800
- 联系电话：021-39194977 Email：LHB@sinap.ac.cn
- 技术支持由北京北大方正电子有限公司提供 沪ICP备05005479号-1
京公网安备11010802024621 - 本系统建议在Chrome、 IE9+ 以上版本浏览器阅读本站内容，360浏览器请切换至极速模式
- Cookies帮助我们提供服务并提供个性化体验。使用本网站，即表示您同意我们使用Cookies
- 总访问量：880473
