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1.
Measurement of neutron spectra for various thicknesses of concrete and steel shielding at 24-GeV/c proton beam facility using Bonner sphere spectrometer / Matsumoto, Tetsuro (AIST, Tsukuba) ; Masuda, Akihiko (AIST, Tsukuba) ; Lee, Eunji (KEK, Tsukuba ; Kyushu U.) ; Sanami, Toshiya (KEK, Tsukuba) ; Oyama, Takahiro (KEK, Tsukuba) ; Kajimoto, Tsuyoshi (Hiroshima U.) ; Nakao, Noriaki (Shimizu, Tokyo) ; Yashima, Hiroshi (Kyoto U.) ; Nagaguro, Seiji (KEK, Tsukuba) ; Uwamino, Yoshitomo (Shimizu, Tokyo) et al.
Neutron energy spectra down to thermal energy were measured using a Bonner sphere spectrometer (BSS) for various thicknesses of concrete and steel shielding at the CERN/CHARM facility, where high-energy neutrons were produced by 24-GeV/c protons incident on a thick copper target. The thicknesses of the concrete and steel shielding blocks ranged from 40 cm to 200 cm and from 20 cm to 80 cm, respectively. [...]
2024 - 13 p. - Published in : J. Nucl. Sci. Tech. 61 (2024) 98-110
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2.
Energy spectra of neutrons penetrating concrete and steel shielding blocks from 24 GeV/c protons incident on thick copper target / Lee, Eunji (Kyushu U.) ; Shigyo, Nobuhiro (Kyushu U.) ; Kajimoto, Tsuyoshi (Hiroshima U.) ; Sanami, Toshiya (KEK, Tsukuba ; Sokendai, Tsukuba) ; Nakao, Noriaki (Shimizu, Tokyo) ; Froeschl, Robert (CERN) ; Iliopoulou, Elpida (CERN) ; Infantino, Angelo (CERN) ; Roesler, Stefan (CERN) ; Brugger, Markus (CERN)
In this study, experimental measurements were performed on the spectra of neutrons which penetrate concrete and steel of various thicknesses values when a proton beam of 24 GeV/c was incident on a copper target at the CHARM facility in the East Hall of the CERN Proton Synchrotron (PS) The thicknesses of concrete and steel ranged up to 360 cm and 80 cm, respectively. To measure the neutron spectra, an NE213 scintillator was positioned on the top roof of the shielding structure as the neutron detector. [...]
2021 - 13 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 998 (2021) 165189
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3.
Neutron energy spectrum measurement using an NE213 scintillator at CHARM / Kajimoto, Tsuyoshi (Hiroshima U. (main)) ; Sanami, Toshiya (KEK, Tsukuba) ; Nakao, Noriaki (Shimizu, Tokyo) ; Froeschl, Robert (CERN) ; Roesler, Stefan (CERN) ; Iliopoulou, Elpida (CERN ; Aristotle U., Thessaloniki) ; Infantino, Angelo (CERN) ; Brugger, Markus (CERN) ; Lee, Eunji (Kyushu U., Fukuoka (main)) ; Shigyo, Nobuhiro (Kyushu U., Fukuoka (main)) et al.
To establish a methodology for neutron spectrum measurement at the CERN High energy AcceleRator Mixed field facility (CHARM), neutron spectra were measured using an NE213 scintillator on top of the CHARM roof shielding where is the CERN Shielding Benchmark Facility (CSBF). The spectra were derived as fluences into the scintillator by the unfolding method using an iterative Bayesian algorithm. [...]
2018 - 7 p. - Published in : Nucl. Instrum. Methods Phys. Res., B 429 (2018) 27-33 Fulltext: PDF;
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4.
Status of Center for Accelerator and Beam Applied Science of Kyushu University / Yonemura, Y (Kyushu U.) ; Arima, H (Kyushu U.) ; Fukumoto, S (KEK, Tsukuba) ; Ikeda, N (Kyushu U.) ; Ishibashi, K (Kyushu U.) ; Ishikawa, H (Kyushu U.) ; Kimura, Y (KEK, Tsukuba) ; Maehata, K (Kyushu U.) ; Mori, Y (Kyoto U., KURRI) ; Nakayama, H (KEK, Tsukuba) et al.
2008 - 3 p. External link: Published version from JACoW
In : 11th European Particle Accelerator Conference, Genoa, Italy, 23 - 27 Jun 2008, pp.THPP070
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5.
Measurements of neutron spectra produced from a thick tungsten target bombarded with 5 and 15 GeV protons / Meigo, S ; Takada, H ; Shigyo, N ; Iga, K ; Iwamoto, Y ; Kitsuki, H ; Ishibashi, K ; Maehata, K ; Arima, H ; Nakamo, T et al.
For validation of calculation codes that are employed in the design of a pulse spallation neutron source and accelerator driven system, the spectrum of neutrons produced from a thick target plays an important role. However, appropriate experimental data were scarce for incident energies higher than 0.8 GeV. [...]
2002 - Published in : J. Nucl. Sci. Technol., Suppl.: 2 (2002) , pp. 1252-1255
In : International Conference on Nuclear Data for Science and Technology 2001, Tsukuba, Japan, 7 - 12 Oct 2001, pp.1252-1255
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6.
Measurement of neutron-production double-differential cross sections for 8 and 15 GeV proton incidence in the most-forward directions / Shigyo, N ; Satoh, D ; Iwamoto, Y ; Ishimoto, S ; Kawasaki, Y ; Takayama, Y ; Tenzou, H ; Ishibashi, K ; Nakamoto, T ; Numajiri, M et al.
Neutron-production double-differential cross sections in the most- forward directions were measured for proton-induced reactions on Fe and Pb targets at 0.8 and 1.5 GeV. The experiment was performed at the pi 2 beam line of the 12 GeV proton synchrotron in High Energy Accelerator Research Organization (KEK). [...]
2002 - Published in : J. Nucl. Sci. Technol., Suppl.: 1 (2002) , pp. 417-420
In : International Conference on Nuclear Data for Science and Technology 2001, Tsukuba, Japan, 7 - 12 Oct 2001, pp.417-420
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7.
Improvement of energy resolution in time-of-flight method for high energy neutron measurement / Shigyo, N ; Iwamoto, Y ; Satoh, D ; Kitsuki, H ; Ishibashi, K ; Numajiri, M
In the time-of-flight measurement of high energy neutrons, the time resolution is often required to be as good as possible. For improvement of the energy resolution, the time-of-flight study was made by the use of Li (p, n) reaction at forward angles. [...]
2000
In : 47th IEEE Nuclear Science Symposium and Medical Imaging Conference, Lyons, France, 15 - 20 Oct 2000, pp.6/215-6/218 (v.1)
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