Homogeneity tests on neutron shield concrete

doi:10.13538/j.1001-8042/nst.25.S010604

Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL 2019 Impact factor 1.556

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Nuclear Science and Techniques ›› 2014, Vol. 25 ›› Issue (S1): S010604 doi: 10.13538/j.1001-8042/nst.25.S010604

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles Next Articles

Homogeneity tests on neutron shield concrete

Koichi Okuno, and Hiroshi Iikura

1HAZAMA ANDO Technical Research Institute, 515-1 Karima, Tsukuba, Ibaraki, 305-0822, Japan 2JAEA Quantum Beam Science Directorate, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki, 319-1195, Japan

Contact: Koichi Okuno E-mail:okuno.koichi@ad-hzm.co.jp

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Koichi Okuno, and Hiroshi Iikura. Homogeneity tests on neutron shield concrete.Nuclear Science and Techniques, 2014, 25(S1): S010604 doi: 10.13538/j.1001-8042/nst.25.S010604

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Abstract

Abstract: In recent years, neutrons have been studied for application in fields such as material analysis and boron neutron capture therapy. To create a compact shield for these facilities, a neutron shield concrete is developed. Verifying the homogeneity of the concrete is important to ensure adequate shielding performance. In this research, neutron radiography images of the concrete are taken using the Thermal Neutron Radiography Facility (TNRF) of the JRR-3 research reactor, and the transmission ratio of the thermal neutrons were estimated. The results showed that the transmission ratio of the concrete was almost the same at each depth.

Key words: Neutron, Neutron radiography, Shielding, Concrete

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Homogeneity tests on neutron shield concrete

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