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Tie H, Pu Z, Jun X, Chuanxin Z, Jian Y, Haiping G. Benchmark integral neutron experiments for Fe, Be and C with DT neutron by liquid scintillation detector. Appl Radiat Isot 2017; 124:56-61. [PMID: 28340363 DOI: 10.1016/j.apradiso.2016.12.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 09/14/2016] [Accepted: 12/19/2016] [Indexed: 11/16/2022]
Abstract
The measurements of iron, beryllium and carbon sphere neutron leakage spectra using BC501A detector by DT neutron source are presented. The experiments were carried out in Institute of Nuclear Physics and Chemistry (INPC), China. Neutron leakage spectra in a wide energy range at angles of 0° and 30° from the direction of incident deuteron beam were obtained. The results show the leakage neutron flux decreases notably with the spherical shell increasing when neutron energy >10MeV. When neutron energy <6MeV the leakage neutron distribution tends to lower energy side with the shell increase. The total uncertainty evaluation of the neutron spectra is also provided: in the high-energy parts the uncertainty is about 5-7%, while in the low-energy parts the uncertainty is about 7-9%. In order to compare the experiment results a Monte-carlo calculation was made using the MCNP5 Code with the ENDF/B-VII.1 nuclear data files.
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Affiliation(s)
- He Tie
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China.
| | - Zheng Pu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China.
| | - Xiao Jun
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Zhu Chuanxin
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Yang Jian
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Guo Haiping
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
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Yashima H, Iwase H, Hagiwara M, Kirihara Y, Taniguchi S, Yamakawa H, Oishi K, Iwamoto Y, Satoh D, Nakane Y, Nakashima H, Itoga T, Nakao N, Nakamura T, Tamii A, Hatanaka K. Benchmark Experiment of Neutron Penetration through Iron and Concrete Shields for Hundreds-of-MeV Quasi-Monoenergetic Neutrons—I: Measurements of Neutron Spectrum by a Multimoderator Spectrometer. NUCL TECHNOL 2017. [DOI: 10.13182/nt09-a9198] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Yashima
- Kyoto University, Reactor Research Institute, Asashironishi 2-1010, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan
| | - H. Iwase
- High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - M. Hagiwara
- High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Y. Kirihara
- The Graduate University for Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - S. Taniguchi
- Japan Synchrotron Radiation Research Institute, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - H. Yamakawa
- Shimizu Corporation, 3-4-17 Etchujima, Koto-ku, Tokyo 135-8530, Japan
| | - K. Oishi
- Shimizu Corporation, 3-4-17 Etchujima, Koto-ku, Tokyo 135-8530, Japan
| | - Y. Iwamoto
- Japan Atomic Energy Agency, 2-4 Shirane Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - D. Satoh
- Japan Atomic Energy Agency, 2-4 Shirane Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - Y. Nakane
- Japan Atomic Energy Agency, 2-4 Shirane Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - H. Nakashima
- Japan Atomic Energy Agency, 2-4 Shirane Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - T. Itoga
- Institute of Physical and Chemical Research, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | | | - T. Nakamura
- Tohoku University, Cyclotron and Radioisotope Center, Shimizu Corporation, Aoba 6-3, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - A. Tamii
- Osaka University, Research Center of Nuclear Physics, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - K. Hatanaka
- Osaka University, Research Center of Nuclear Physics, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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Iwamoto Y, Sato T, Hashimoto S, Ogawa T, Furuta T, Abe SI, Kai T, Matsuda N, Hosoyamada R, Niita K. Benchmark study of the recent version of the PHITS code. J NUCL SCI TECHNOL 2017. [DOI: 10.1080/00223131.2017.1297742] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | - Ryuji Hosoyamada
- Research Organization for Information Science and Technology, Ibaraki, Japan
| | - Koji Niita
- Research Organization for Information Science and Technology, Ibaraki, Japan
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Hagiwara M, Iwase H, Iwamoto Y, Satoh D, Matsumoto T, Masuda A, Yashima H, Nakane Y, Nakashima H, Sakamoto Y, Shima T, Tamii A, Hatanaka K, Nakamura T. Shielding experiments of concrete and iron for the 244 MeV and 387 MeV quasi-mono energetic neutrons using an organic scintillator (at RCNP, Osaka Univ.). EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201715308021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Taal A, van der Kooij A, Okx WJC. A SHORTCUT FORMULA FOR THE 230-MeV PROTON-INDUCED NEUTRON DOSE EQUIVALENT IN CONCRETE AFTER A METAL SHIELD, DERIVED FROM MONTE CARLO SIMULATIONS WITH MCNPX. RADIATION PROTECTION DOSIMETRY 2016; 171:326-336. [PMID: 26374914 DOI: 10.1093/rpd/ncv403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 08/19/2015] [Accepted: 08/21/2015] [Indexed: 06/05/2023]
Abstract
Monte Carlo simulations were performed with MCNPX to determine the neutron dose equivalent in thick concrete after a metal shield, a double-layered shielding configuration. In the simulations, a 230-MeV proton beam impinging on a copper target was used to produce the neutrons. For forward angles up to 30° with respect to the proton beam, it is found that the neutron dose equivalent in thick concrete after a metal layer can be expressed in a single formula. This single formula being the neutron dose equivalent formula for a single thick concrete shield enhanced with an additional exponential term. The exponent of this additional exponential term is related to the relative macroscopic neutron removal cross section of the metal with respect to the concrete. The single formula found fits MCNPX data for the neutron dose equivalent in thick concrete after layers of metal ranging from beryllium to lead. First attempts were made to make this shortcut formula applicable to alloys and compounds of metals.
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Affiliation(s)
- A Taal
- Reactor Institute Delft, Mekelweg 15, Delft, The Netherlands
| | - A van der Kooij
- Reactor Institute Delft, Mekelweg 15, Delft, The Netherlands
| | - W J C Okx
- Reactor Institute Delft, Mekelweg 15, Delft, The Netherlands
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