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Measurement of neutron capture cross-section of indium in the energy region from 0.003 eV to 30 keV
Affiliation:1. Dong-A University, 840 Hadan 2-dong, Saha-gu, Pusan 604-714, South Korea;2. Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, Osaka 590-0494, Japan;1. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe Shosse, 31, Moscow, 115409, Russian Federation;2. State Research Center of the Russian Federation – Institute for Biomedical Problems, Russian Academy of Sciences, Khoroshevskoye Shosse, 76A, Moscow, 123007, Russian Federation;3. Radiation Measurement Research Team, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan;1. Centre for Plasma Physics, The Queen׳s University of Belfast, Belfast BT7 1NN, United Kingdom;2. Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany;1. Embedded Computing System (EmbCoS) Research Focus Group, Department of Computer Engineering, Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia;2. Faculty of Electrical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia;3. Tomography Imaging and Instrumentation Research Group, School of Mechatronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, 02600 Arau, Perlis, Malaysia;1. Optoelectronics Group – Department of Engineering, University of Sannio, I-82100 Benevento, Italy;2. University of Napoli Federico II, Department of Physics, I-80126 Napoli, Italy;3. Istituto Nazionale di Fisica Nucleare (INFN) – Sezione di Napoli, I-80126 Napoli, Italy;4. University of Napoli Federico II, Department of Electronical Engineering, I-80125 Napoli, Italy;1. Hungarian Academy of Sciences, Centre for Energy Research (MTAEK), Budapest, Hungary;2. Institute of Biomedical Problems of the Russian Academy of Sciences(IBMP RAS), Moscow, Russia
Abstract:The neutron capture cross-section of indium (In) has been measured in the energy region from 0.003 eV to 30 keV by the neutron time-of-flight (TOF) method with a 46-MeV electron linear accelerator (linac) of the Research Reactor Institute, Kyoto University. An assembly of Bi4Ge3O12 (BGO) scintillators, which was composed of 12 pieces of BGO and placed at a distance of 12.7±0.02 m from the neutron source, was employed as a total energy absorption detector for the prompt capture γ-ray measurement from the sample. In order to determine the neutron flux impinging on the capture sample, a plug of 10B powder sample and the 10B(n,α) standard cross-section were used. The data measured by Haddad et al. (Haddad, E., Friesenhahn, S., Lopez, W.M., 1963. Report of Gulf Energy and Environmental Systems, p. 3874) seem to be in good agreement with the present measurement. Popov et al. obtained the poor energy resolution data in the resonance region with a lead slowing-down spectrometer and the consistent data with the present above about 300 eV. The experimental data measured by Kononov et al. (Kononov, U.N., Jurlov, B.D., Poletaev, E.D., Timokhov, V.M., Manturov, G.N., 1977. Report of Obninsk, pp. 22–29) and Gibbons et al. (Gibbons, J.H., Macklin, R.L., Miller, P.D., Neiler, J.H., 1961. Phys. Rev. 122, 182) showed good agreement with the present values in the higher energy region. However, the data measured by Block et al. (Block R.C., Kaushal, N.N., Hockenbury, R.W., 1972. Conference on New Developments in Reactor Physics and Shielding at Kiamesha Lake, Vol. 2, p. 1107) seem to be a little higher than the present measurement above 800 eV. The evaluated data in ENDF/B-VI, JENDL-3.2, and JEF-2.2 have been in general agreement with the present result in the relevant energy region, although the JENDL-3.2 are higher than the measurement, the ENDF/B-VI and the JEF-2.2 from 2 to about 10 keV. Most of the previous experimental and the evaluated thermal neutron cross-sections are generally close to the present value of 199.6±5.6 b at 0.0253 eV.
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