Measurement of the <sup>232</sup>Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n

Zhi-Zhou Ren; Yi-Wei Yang; Yong-Hao Chen; Rong Liu; Bang-Jiao Ye; Jie Wen; Hai-Rui Guo; Zi-Jie Han; Qi-Ping Chen; Zhong-Wei Wen; Wei-Li Sun; Han Yi; Xing-Yan Liu; Tao Ye; Jiang-Bo Bai; Qi An; Jie Bao; Yu Bao; Ping Cao; Hao-Lei Chen; Zhen Chen; Zeng-Qi Cui; Rui-Rui Fan; Chang-Qing Feng; Ke-Qing Gao; Xiao-Long Gao; Min-Hao Gu; Chang-Cai Han; Guo-Zhu He; Yong-Cheng He; Yang Hong; Yi-Wei Hu; Han-Xiong Huang; Xi-Ru Huang; Hao-Yu Jiang; Wei Jiang; Zhi-Jie Jiang; Han-Tao Jing; Ling Kang; Bo Li; Chao Li; Jia-Wen Li; Qiang Li; Xiao Li; Yang Li; Jie Liu; Shu-Bin Liu; Ze Long; Guang-Yuan Luan; Chang-Jun Ning; Meng-Chen Niu; Bin-Bin Qi; Jie Ren; Xi-Chao Ruan; Zhao-Hui Song; Kang Sun; Zhi-Jia Sun; Zhi-Xin Tan; Jing-Yu Tang; Xin-Yi Tang; Bin-Bin Tian; Li-Jiao Wang; Peng-Cheng Wang; Zhao-Hui Wang; Xiao-Guang Wu; Xuan Wu; Li-Kun Xie; Xiao-Yun Yang; Li Yu; Tao Yu; Yong-Ji Yu; Guo-Hui Zhang; Lin-Hao Zhang; Qi-Wei Zhang; Xian-Peng Zhang; Yu-Liang Zhang; Zhi-Yong Zhang; Lu-Ping Zhou; Zhi-Hao Zhou; Ke-Jun Zhu

doi:10.1007/s41365-023-01271-7

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Measurement of the ²³²Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n

NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH | Updated：2023-09-19

- Measurement of the ²³²Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n
- Measurement of the ²³²Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n
- 核技术（英文版） 2023年34卷第8期文章编号：115
- Affiliations：
  
  1.Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
  2.Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
  3.Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
  4.Spallation Neutron Source Science Center, Dongguan 523803, China
  5.Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
  6.State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230027, China
  7.Key Laboratory of Nuclear Data, China Institute of Atomic Energy, Beijing 102413, China
  8.School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230027, China
  9.State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
  10.State Key Laboratory of Particle Detection and Electronics, Institute of High Energy Physics Chinese Academy of Sciences, Beijing, China
  11.Northwest Institute of Nuclear Technology, Xi’an 710024, China
  12.University of Chinese Academy of Sciences, Beijing 100049, China
  13.Department of Engineering and Applied Physics, University of Science and Technology of China, Hefei 230026, China
- Author bio：
  
  * liurongzy@163.com
- Funds：
  
  National Natural Science Foundation of China(11675155;11790321;12075216);National Key Research and Development Plan(2016YFA0401603)
- DOI：10.1007/s41365-023-01271-7
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Measurement of the ²³²Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n[J]. 核技术（英文版）, 2023,34(8):115

Zhi-Zhou Ren, Yi-Wei Yang, Yong-Hao Chen, et al. Measurement of the ²³²Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n[J]. Nuclear Science and Techniques, 2023,34(8):115
Measurement of the ²³²Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n[J]. 核技术（英文版）, 2023,34(8):115 DOI： 10.1007/s41365-023-01271-7.

Zhi-Zhou Ren, Yi-Wei Yang, Yong-Hao Chen, et al. Measurement of the ²³²Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n[J]. Nuclear Science and Techniques, 2023,34(8):115 DOI： 10.1007/s41365-023-01271-7.

摘要

Abstract

The ,232,Th(n,f) cross-section is very important in basic nuclear physics and applications based on the Th/U fuel cycle. Using the time-of-flight method and a multi-cell fast fission ionization chamber, a novel measurement of the ,232,Th(n,f) cross-section relative to ,235,U in the 1–200 MeV range was performed at the China Spallation Neutron Source Back-n white neutron source (Back-n). The fission event-neutron energy spectra of ,232,Th and ,235,U fission cells were measured in the single-bunch mode. Corrected ,232,Th/,235,U fission cross-section ratios were obtained, and the measurement uncertainties were 2.5–3.7% for energies in the 2–20 MeV range and 3.6–6.2% for energies in the 20–200 MeV range. The ,232,Th(n,f) cross-section was obtained by introducing the standard cross-section of ,235,U(n,f). The results were compared with those of previous theoretical calculations, measurements, and evaluations. The measured ,232,Th fission cross-section agreed with the main evaluation results in terms of the experimental uncertainty, and ,232,Th fission resonances were observed in the 1–3 MeV range. The present results provide ,232,Th(n,f) cross-section data for the evaluation and design of Th/U cycle nuclear systems.

关键词

Keywords

232Th(nf) cross sectionFast-fission ionization chamberBack-n white neutron source

references

N. Colonna, A. Tsinganis, R. Vlastou et al., The fission experimental programme at the CERN n_TOF facility: status and perspectives. Eur. Phys. J. A 56, 48 (2020). doi: 10.1140/epja/s10050-020-00037-8http://doi.org/10.1140/epja/s10050-020-00037-8

C.Y. Li, X.B. Xia, J. Cai et al., Radiation dose distribution of liquid fueled thorium molten salt reactor. Nucl. Sci. Tech. 32,22 (2021). doi: 10.1007/s41365-021-00857-3http://doi.org/10.1007/s41365-021-00857-3

P. Yang, Z.K. Lin, W.S. Wan et al., Preliminary neutron study of a thorium-based molten salt energy amplifier. Nucl. Sci. Tech. 31, 41 (2020). doi: 10.1007/s41365-020-0750-8http://doi.org/10.1007/s41365-020-0750-8

International Atomic Energy Agency (IAEA), Thorium fuel cycle – Potential benefits and challenges. (IAEA-TECDOC-1450, 2005), Accessed 19 Jul 2021. https://www.iaea.org/publications/7192https://www.iaea.org/publications/7192

U. Abbondanno, S. Andriamonje, J. Andrzejewski et al., Measurements of fission cross sections for the isotopes relevant to the thorium fuel cycle. CERN/INTC 2001-25, 08 Aug 2001. https://cds.cern.ch/record/514756/files/intc-p-145.pdfhttps://cds.cern.ch/record/514756/files/intc-p-145.pdf

S. Bjørnholm, J. E. Lynn., The double-humped fission barrier. Rev. Mod. Phys. 52,725 (1980). doi: 10.1103/RevModPhys.52.725http://doi.org/10.1103/RevModPhys.52.725

V. Michalopoulou, M. Axiotis, S. Chasapoglou et al., Measurement of the 232Th(n,f) cross section with quasi-monoenergetic neutron beams in the energy range 2–18 MeV. Eur. Phys. J. A 57,277 (2021). doi: 10.1140/epja/s10050-021-00590-whttp://doi.org/10.1140/epja/s10050-021-00590-w

P. Möller, J. Nix., Calculation of Fission Barriers, (Proceedings of the Third IAEA Symposium on the Physics and Chemistry of Fission) (Rochester, New York, 1974), p. 103. https://www.osti.gov/biblio/4458292/https://www.osti.gov/biblio/4458292/

J. W. Behrens, J. C. Browne, E. Ables., Measurement of the Neutron-Induced Fission Cross Section of 232Th Relative to 235U from 0.7 to 30 MeV. Nuclear Science and Engineering, 81:4, 512-519 (1982). doi: 10.13182/NSE82-A21440http://doi.org/10.13182/NSE82-A21440

J.W. Meadows., The Fission Cross Sections of Some Thorium, Uranium, Neptunium and Plutonium Isotopes Relative to 235U. Techn. Rep. No. ANL/NDM-83 (1983). doi: 10.2172/5539010http://doi.org/10.2172/5539010

P.W. Lisowski, J.L. Ullman, S.J. Balestrini et al., Neutron induced fission cross section ratios for 232Th, 235,238U, 237Np and 239Pu from 1 to 400 MeV. Conf. on Nucl. Data For Sci. and Technol., Mito 1988, p.97 (1988). https://www.osti.gov/biblio/6967752https://www.osti.gov/biblio/6967752

B. I. Fursov, E. Yu. Baranov, M. P. Klemyshev, et al., Measurements of the fission cross-section ratios Th-232/U-235 and U-234/U-235 for 0.13-7.4 MeV neutrons. Atomnaya Energiya, Vol.71, 827-831 (1991), Russia. doi: 10.1007/BF01123535http://doi.org/10.1007/BF01123535

O. Shcherbakov, A Donets, A Evdokimov, et al., Neutron-Induced Fission of 233U, 238U, 232Th, 239Pu,237Np, natPb and 209Bi Relative to 235U in the Energy Range 1-200 MeV. Nucl. Sci. Technol. 39, 230 (2002). doi: 10.1080/00223131.2002.10875081http://doi.org/10.1080/00223131.2002.10875081

Y.M. Gledenov, Z.Q. Cui, J. Liu et al., Cross section of the 232Th(n, f) reaction in the MeV neutron energy region. Eur. Phys. J. A 58,86 (2022). doi: 10.1140/epja/s10050-022-00716-8http://doi.org/10.1140/epja/s10050-022-00716-8

Y.H. Chen, Y.W. Yang, Z.Z. Ren et al., Measurement of neutron-induced fission cross sections of 232Th from 1 to 300 MeV at CSNS Back-n. Physics Letters B 839, 137832 (2023). doi: 10.1016/j.physletb.2023.137832http://doi.org/10.1016/j.physletb.2023.137832

D. A. Brown, M. B. Chadwick, R. Capote et al., ENDF/B-VIII.0: The 8th Major Release of the Nuclear Reaction Data Library with CIELO-project Cross Sections, New Standards and Thermal Scattering Data. Nuclear Data Sheets 148 1-142 (2018). doi: 10.1016/j.nds.2018.02.001http://doi.org/10.1016/j.nds.2018.02.001

O. Iwamoto, N. Iwamoto, K. Shibata et al., "Status of JENDL", EPJ Web of Conferences, 239, 09002_1-6 (2020). doi: 10.1051/epjconf/2F202023909002http://doi.org/10.1051/epjconf/2F202023909002

Z.G. Ge, R.R. Xu, H.C. Wu et al., CENDL-3.2: The new version of Chinese general purpose evaluated nuclear data library. EPJ Web Conf. 239, 09001 (2020). doi: 10.1051/epjconf/202023909001http://doi.org/10.1051/epjconf/202023909001

A.I. Blokhin, E.V. Gai, A.V. Ignatyuk et al., New version of neutron evaluated data library BROND-3.1, Yad. Reak. Konst. 2, 62 (2016). https://vant.ippe.ru/en/year2016/2/neutron-constants/1150-5.htmlhttps://vant.ippe.ru/en/year2016/2/neutron-constants/1150-5.html

A. Plompen, O. Cabellos, C. De Saint Jean et al., The joint evaluated fission and fusion nuclear data library, JEFF-3.3. Eur. Phys. J. A. 56, 181 (2020). doi: 10.1140/epja/s10050-020-00141-9http://doi.org/10.1140/epja/s10050-020-00141-9

J.Y. Tang, Q. An, J.B. Bai et al., Back-n white neutron source at CSNS and its applications. Nucl. Sci. Tech. 32,11 (2021). doi: 10.1007/s41365-021-00846-6http://doi.org/10.1007/s41365-021-00846-6

H.T. Jing, J.Y. Tang, H.Q. Tang et al., Studies of back-streaming white neutrons at CSNS. Nucl. Instrum. Meth. A. 91–96, 621 (2010). doi: 10.1016/j.nima.2010.06.097http://doi.org/10.1016/j.nima.2010.06.097

Y.W. Yang, Z.W. Wen, Z.J. Han et al., A multi-cell fission chamber for fission cross-section measurements at the Back-n white neutron beam of CSNS. Nucl. Instrum. Meth. A. 486–491, 940 (2019). doi: 10.1016/j.nima.2019.06.014http://doi.org/10.1016/j.nima.2019.06.014

J. Wen, Y.W. Yang, Z.W. Wen et al., A multi-layered fast ionization chamber prototype for fission cross section measurements. J. Instrum. 13 (07), P07020 (2018). doi: 10.1088/1748-0221/13/07/P07020http://doi.org/10.1088/1748-0221/13/07/P07020

X.Y. Liu, Y.W. Yang, R. Liu et al., Measurement of the neutron total cross section of carbon at the Back-n white neutron beam of CSNS. Nucl. Sci. Tech. 30,139 (2019). doi: 10.1007/s41365-019-0660-9http://doi.org/10.1007/s41365-019-0660-9

A.D. Carlson, V.G. Pronyaev, R. Capote et al., Evaluation of the Neutron Data Standards. Nuclear Data Sheets. 148,143-188 (2018). doi: 10.1016/j.nds.2018.02.002http://doi.org/10.1016/j.nds.2018.02.002

Y.H. Chen, G.Y. Luan, J. Bao et al., Neutron energy spectrum measurement of the Back-n white neutron source ES#2 at CSNS. Eur. Phys. J. A. 55, 7 (2019). doi: 10.1140/epja/i2019-12808-1http://doi.org/10.1140/epja/i2019-12808-1

Q. Wang, P. Cao, X. Qi et al., General-purpose readout electronics for white neutron source at China spallation neutron source. Rev. Sci. Instrum. 89(1), 013511 (2018). doi: 10.1063/1.5006346http://doi.org/10.1063/1.5006346

J. Wen, Y. Yang, Z. Han et al., Accurate quantification of high purity uranium in coatings by small solid angle method. Appl. Radiat. Isot. 164, 109300 (2020). doi: 10.1016/j.apradiso.2020.109300http://doi.org/10.1016/j.apradiso.2020.109300

Z.Z. Ren, Y.W. Yang, J. Wen et al., Measurement of the 236U (n, f) cross section for neutron energies from 0.4 MeV to 40 MeV from the back-streaming white neutron beam at the China Spallation Neutron Source. Phys. Rev. C. P 102, 034604 (2020). doi: 10.1103/PhysRevC.102.034604http://doi.org/10.1103/PhysRevC.102.034604

R. Brun and F. Rademakers, ROOT—An object oriented data analysis framework, Nucl. Instrum. Meth. A. 389, 81 (1997). doi: 10.1016/S0168-9002(97)00048-Xhttp://doi.org/10.1016/S0168-9002(97)00048-X

J. A. Grundl, D. M. Gilliam, N. D. Dudey et al., Measurement of Absolute Fission Rates. Nucl. Technol. 25,2, 237-257 (1975). doi: 10.13182/NT75-A24366http://doi.org/10.13182/NT75-A24366

P. H. White. Alpha and fission counting of thin foils of fissile material. Nucl. Instrum. Methods. 79 1-12 (1970). doi: 10.1016/0029-554X(70)90002-9http://doi.org/10.1016/0029-554X(70)90002-9

Z.Z. Ren, Y.W. Yang, R Liu et al., Measurement of the 236,238U(n,f) cross sections from the threshold to 200 MeV at CSNS Back-n. Eur. Phys. J. A 59:5 (2023). doi: 10.1140/epja/s10050-022-00910-8http://doi.org/10.1140/epja/s10050-022-00910-8

J.F. Briesmeister, MCNP-A general Monte Carlo N particle transport code, LA-13709-M. Los Alamos National Laboratory, Los Alamos (NM) (2000). https://inspirehep.net/files/78c669e8d3bb59ccf6fb868a6061450chttps://inspirehep.net/files/78c669e8d3bb59ccf6fb868a6061450c

J. Wen, Y.W. Yang, Z.W. Wen et al., Measurement of the U-238/U-235 fission cross section ratio at CSNS - Back-n WNS. Ann. Nucl. Energy. 140, 107301 (2020). doi: 10.1016/j.anucene.2019.107301http://doi.org/10.1016/j.anucene.2019.107301

X.R. Hu, G.T. Fan, W. Jiang et al., Measurements of the 197Au(n, γ) cross section up to 100 keV at the CSNS Back-n facility. Nucl. Sci. Tech. 32,101 (2021). doi: 10.1007/s41365-021-00931-whttp://doi.org/10.1007/s41365-021-00931-w

J.S. Zhang, UNF code for fast neutron reaction data calculations. Nucl. Sci. Eng. 142, 2 (2002). doi: 10.13182/NSE02-02http://doi.org/10.13182/NSE02-02

ADS-HE, IAEA. https://www-nds.iaea.org/exfor/endf.htmhttps://www-nds.iaea.org/exfor/endf.htm

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Measurement of the neutron total cross-section of carbon at Back-n white neutron beam of CSNS

Measurement of the 232Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n

Measurement of the 232Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n

DOI：10.1007/s41365-023-01271-7

摘要

Abstract

关键词

Keywords

references

Measurement of the ²³²Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n

Measurement of the ²³²Th(n,f) cross-section in the 1–200 MeV range at the CSNS Back-n