| Nobuhiro Shigyo | Last modified date：2024.04.19 |
Assistant Professor /
Applied Nuclear Physics /
Department of Applied Quantum Physics and Nuclear Engineering /
Faculty of Engineering
Papers
| 1. | Yujiro Yonemura, Hidehiko Arima, Hiroki Nishibata, Takashi Teranishi, Tomotsugu Wakasa, Nobuo Ikeda, Kenichi Watanabe, Nobuhiro Shigyo, Tatsunori Iwamura, Kyosuke Adachi, Koki Takamatsu, Motoki Kotani, Hisato Tanaka, Rintaro Matsunaga, Taichi Matsumoto, Kyohei Takenaka, Takafumi Kajihara, Sotaro Matsunaga, Yusuke Shinohara, Yoshiharu Mori, Heavy Ion Injection of Fixed-Field Alternating Gradient Accelerator, Progress of Theoretical and Experimental Physics, 10.1093/ptep/ptae017, 2024.02, Much research in recent years has focused on circular accelerators that accelerate and store secondary particles with a large momentum spread, such as muons, unstable nuclei, and heavy ions with different charge states. A fixed-field alternating gradient (FFAG) accelerator with large transverse and momentum acceptance has obvious advantages for such requirements. A versatile beam injection method is required to accelerate secondary particles with a large momentum spread and different charge states with an FFAG accelerator. In the present study, a method for charge exchange injection of positive heavy ions using the large momentum acceptance of an FFAG accelerator is proposed. A charge injection system, which converts a He1+ beam to a He2+ beam, is developed for a 150 MeV FFAG accelerator at the Center for Accelerator and Beam Applied Science (CABAS) of Kyushu University. As the first step to verify the injection method, an orbit shift from one charge state to the other is demonstrated. This is the first demonstration of heavy ion injection using an FFAG accelerator. . |
| 2. | Kenta Sugihara, Yujiro IKEDA, Tomohiro KOBAYASHI, Kunihiro FUJITA, Nobuhiro Shigyo, Kanenobu TANAKA, Yoshie OTAKE, Study on characteristics of neutron and γ-ray fields at compact neutron source RANS-II facility by simulation by the PHITS code, JAEA-Conf, 10.11484/jaea-conf-2021-001, 2021, 001, 201-206, 2022.03. |
| 3. | Naoki Tokunaga, Nobuhiro Shigyo, Shunsuke Makimura, Yoshinori Fukao, Naoya Kamei, Makoto Yoshida, Estimation of Flux and Residual Radioactivity for the COMET Phase-I Experiment, JAEA-Conf, 10.11484/jaea-conf-2021-001, 2021, 001, 213-218, 2022.03. |
| 4. | Eunji Lee, Nobuhiro Shigyo, Tsuyoshi Kajimoto, Toshiya Sanami, Noriaki Nakao, Robert Froesch, Elpida Iliopoulo, Angelo Infantino, Stefan Roesler, Markus Brugger, Energy spectra of neutrons penetrating concrete and steel shielding blocks from 24 GeV/c protons incident on thick copper target, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 10.1016/j.nima.2021.165189, 998, 165189, 2021.05. |
| 5. | Hayato Takeshita, Yukinobu Watanabe, Keita Nakano, Seiya Manabe, Katsumi Aoki, Naoto Araki, Kosuke Yoshinami, Tadahiro Kin, Nobuhiro Shigyo, Jun Koga, So Makise, Tamaki Yoshioka, Masaomi Tanaka, Takashi Teranishi, Thick target neutron yields from LiF, C, Si, Ni, Mo, and Ta bombarded by 6.7 MeV/u deuterons, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 10.1016/j.nima.2020.164582, 983, 2020.12, Double-differential thick target neutron yields from the bombardment of LiF, C, Si, Ni, Mo, and Ta targets by 6.7 MeV/u deuterons were measured at forward angles using an EJ-301 liquid organic scintillator. The neutron energy spectra were derived via an unfolding method using the FORIST code with the detector response function calculated using the SCINFUL-QMD code. The neutron energy spectra and total neutron yields at 0∘ from the deuteron incidences were compared with the previous data of triton incidences on LiF, Si, Ni, Mo, and Ta targets measured at the same incident energy per nucleon. The comparison revealed that deuterons yield more neutrons for low-Z targets than tritons, and less neutrons for high-Z targets. The measured neutron energy spectra were compared with model calculations using the DEUteron-induced Reaction Analysis Code System (DEURACS). DEURACS successfully reproduced the neutron spectra from all the targets. For the triton incidence, some calculation codes were benchmarked, with JQMD/GEM and CCONE yielding good agreement with the measured neutron spectra at 0∘.. |
| 6. | Kenta Sugihara, Nobuhiro Shigyo, Astuko Akashio, Kanenobu Tanaka, Measurement of Neutron Energy Spectra of 345 MeV/u 238U Incidence on a Copper Target, JAEA-Conf, 10.11484/jaea-conf-2020-001, 2020-001, 143-146, 2020.12. |
| 7. | S. Izumitani, Y. Ikeda, T. Kobayashi, S. Ikeda, Y. Wakabayashi, K. Fujita, K. Sugihara, N. Shigyo, K. Tanaka, Y. Otake, Preliminary Experiment on Characterization of RANS-II Neutron Production via the 7Li(p, n)7Be Reaction with 2.49 MeV Proton Injection, JAEA-Conf, 10.11484/jaea-conf-2020-001, 2020-001, 171-176, 2020.12. |
| 8. | K. Sugihara, N. Shigyo, E. Lee, T. Sanami, K. Tanaka, Measurement of thick target neutron yields from 7 MeV/u α incidence on 209Bi, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 10.1016/j.nimb.2020.02.037, 470, 15-20, 2020.05, Thick target neutron yields produced by 7 MeV/u α incidence on a 209Bi target were measured at emission angles of 0°, 45°, and 90° using EJ301 liquid scintillators and the time-of-flight method. The experimental thick target yields were compared with those calculated using the Liège IntraNuclear-Cascade (INCL) and the JAERI Quantum Molecular Dynamics (JQMD) models followed by the Generalized Evaporation Model (GEM) implemented in PHITS. The INCL model successfully reproduced the neutron energy distribution. In contrast, the JQMD model could not reproduce the distribution, even for the reactions induced by low energy composite particles.. |
| 9. | R. Abramishvili, G. Adamov, R. R. Akhmetshin, A. Allin, J. C. Angélique, V. Anishchik, M. Aoki, D. Aznabayev, I. Bagaturia, G. Ban, Y. Ban, D. Bauer, D. Baygarashev, A. E. Bondar, C. Cârloganu, B. Carniol, T. T. Chau, J. K. Chen, S. J. Chen, Y. E. Cheung, W. da Silva, P. D. Dauncey, C. Densham, G. Devidze, P. Dornan, A. Drutskoy, V. Duginov, Y. Eguchi, L. B. Epshteyn, P. Evtoukhovitch, S. Fayer, G. V. Fedotovich, M. Finger Jr, M. Finger, Y. Fujii, Y. Fukao, J. L. Gabriel, P. Gay, E. Gillies, D. N. Grigoriev, K. Gritsay, V. H. Hai, E. Hamada, I. H. Hashim, S. Hashimoto, O. Hayashi, T. Hayashi, T. Hiasa, Z. A. Ibrahim, Y. Igarashi, F. V. Ignatov, M. Iio, K. Ishibashi, A. Issadykov, T. Itahashi, A. Jansen, X. S. Jiang, P. Jonsson, T. Kachelhoffer, V. Kalinnikov, E. Kaneva, F. Kapusta, H. Katayama, K. Kawagoe, R. Kawashima, N. Kazak , V. F. Kazanin, O. Kemularia, A. Khvedelidze, M. Koike, T. Kormoll, G. A. Kozlov, A. N. Kozyrev, M. Kravchenko, B. Krikler, G. Kumsiashvili, Y. Kuno, Y. Kuriyama, Y. Kurochkin, A. Kurup, B. Lagrange, J. Lai, M. J. Lee, H. B. Li, R. P. Litchfield, W. G. Li, T. Loan, D. Lomidze, I. Lomidze, P. Loveridge, G. Macharashvili, Y. Makida, Y. J. Mao, O. Markin, Y. Matsuda, A. Melkadze, A. Melnik, T. Mibe, S. Mihara, N. Miyamoto, Y. Miyazaki, F. Mohamad Idris, K. A. Mohamed Kamal Azmi, A. Moiseenko, M. Moritsu, Y. Mori, T. Motoishi, H. Nakai, Y. Nakai, T. Nakamoto, Y. Nakamura, Y. Nakatsugawa, Y. Nakazawa, J. Nash, H. Natori, V. Niess, M. Nioradze, H. Nishiguchi, K. Noguchi, T. Numao, J. O’Dell, T. Ogitsu, S. Ohta, K. Oishi, K. Okamoto, T. Okamura, K. Okinaka, C. Omori, T. Ota, J. Pasternak, A. Paulau, D. Picters, V. Ponariadov, G. Quémener, A. A. Ruban, V. Rusinov, B. Sabirov, H. Sakamoto, P. Sarin, K. Sasaki, A. Sato, J. Sato, Y. K. Semertzidis, N. Shigyo, Dz. Shoukavy, M. Slunecka,D. Stöckinger, M. Sugano, T. Tachimoto, T. Takayanagi, M. Tanaka, J. Tang, C. V. Tao, A. M. Teix-eira, Y. Tevzadze, T. Thanh, J. Tojo, S. S. Tolmachev, M. Tomasek, M. Tomizawa, T. Toriashvili, H. Trang, I. Trekov, Z. Tsamalaidze, N. Tsverava, T. Uchida, Y. Uchida, K. Ueno, E. Velicheva, A. Volkov, V. Vrba, W. A. T. Wan Abdullah, P. Warin-Charpentier, M. L. Wong, T. S. Wong, C. Wu, T. Y. Xing, H. Yamaguchi, A. Yamamoto, M. Yamanaka, T. Yamane, Y. Yang, T. Yano, W. C. Yao, B. Yeo, H. Yoshida, M. Yoshida, T. Yoshioka, Y. Yuan, Yu. V. Yudin, M. V. Zdorovets, J. Zhang, Y. Zhang, K. Zuber, COMET Phase-I technical design report, PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 10.1093/ptep/ptz125, 2020, 3, 2020.03. |
| 10. | Eunji Lee, Nobuhiro Shigyo, Tsuyoshi Kajimoto, Toshiya Sanami, Naruhiro Matsufuji, Shogo Izumitani, Naoki Tokunaga, Mamoru Kiyota, Influence of light output calibration on neutron energy spectrum unfolding up to 300 MeV using liquid organic scintillator, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 10.1016/j.nimb.2019.02.024, 445, 26-33, 2019.04, The influence from uncertainty on light output calibration was studied experimentally for neutron energy spectra up to 300 MeV obtained by an unfolding method using a liquid organic scintillator. The neutrons were generated from the interactions of 100 and 290 MeV/u 28Si ion beams on thick silicon targets at a 75° direction with respect to the beam axis. The light output calibration determined by using Compton edges of γ-rays from 60Co and 241Am-Be sources was used for the unfolding method. The uncertainty of the calibration points at the Compton edges was estimated to be within 3%. Two calibration lines which connected the 3% larger light output point of the Compton edge of the γ-ray from 60Co and that the 3% lower light output point of that from 241Am-Be and vice versa were examined for influence on variation of calibration line. The unfolded spectra using the two calibration lines were compared with one using the calibration line connecting light output points of Compton edges from both γ-ray sources. The comparison indicates the uncertainty of calibration line influences the neutron light output spectrum within order of several %. The all unfolded spectra generally reproduced one by the time-of-flight (TOF) method in the same experiment. The difference between TOF and unfolded spectra were 17 and 8% for 100 and 290 MeV/u data, at maximum.. |
| 11. | Riichiro Nakamura, Keisuke Maehata, Nobihiro Shigyo, Naoko Iyomoto, Hiroki Tanaka, Evaluation of Biological Effect in Neutron Field Generated by an Accelerator Using PHITS Code with Microdosimetric Kinetic Model, JPS Conference Proceedings, 10.7566/JPSCP.24.011026, 24, 011021, 2019.01, [URL]. |
| 12. | Eunji LEE, Nobuhiro SHIGYO, Toshiya SANAMI, Tsuyoshi KAJIMOTO, Naruhiro MATSUFUJI, Cross Comparison on Neutron Spectra Obtained by Time-of-Flight and Unfolding Methods with Liquid Organic Scintillator, JPS Conference Proceedings, 10.7566/JPSCP.24.011021, 24, 011021, 2019.01, [URL]. |
| 13. | Chihaya Tokumoto, Eunji Lee, Nobuhiro Shigyo, Tsuyoshi Kajimoto, Naruhiro Matsufuji, Chalmin Ham, Tae-Sun Park, Seung-Woo Hong, Koan Sik Joo, Neutron Energy Spectra from Heavy Ion Reaction Using Efficiency by PHITS, JAEA-Conf, 2018, 001, 137-142, 2018.12. |
| 14. | Tsuyoshi Kajimoto, Toshiya Sanami, Noriaki Nakao, Robert Froeschl, Stefan Roesler, Elpida Iliopoulou, Angelo Infantino, Markus Brugger, Eunji Lee, Nobuhiro Shigyo, Masayuki Hagiwara, Hiroshi Yashima, Hirohito Yamazaki, Kenichi Tanaka, Satoru Endo, Neutron energy spectrum measurement using an NE213 scintillator at CHARM, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 10.1016/j.nimb.2018.05.024, 429, 27-33, 2018.08, 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. The methodology was verified based on the agreement of two spectra measured for different positions and directions of incident neutrons by changing the detector orientation. Since the spectra on the roof-top were obtained within a reasonable beam-time, this methodology is suitable for measuring the spectrum when there is less shielding material. Thus, experimental data for neutron transition can be obtained as a function of shielding thickness using this facility.. |
| 15. | Tatsuhiko Sato, Yosuke Iwamoto, Shintaro Hashimoto, Tatsuhiko Ogawa, Takuya Furuta, Shin ichiro Abe, Takeshi Kai, Pi En Tsai, Norihiro Matsuda, Hiroshi Iwase, Nobuhiro Shigyo, Lembit Sihver, Koji Niita, Features of Particle and Heavy Ion Transport code System (PHITS) version 3.02, journal of nuclear science and technology, 10.1080/00223131.2017.1419890, 55, 6, 684-690, 2018.06, We have upgraded many features of the Particle and Heavy Ion Transport code System (PHITS) and released the new version as PHITS3.02. The accuracy and the applicable energy ranges of the code were greatly improved and extended, respectively, owing to the revisions to the nuclear reaction models and the incorporation of new atomic interaction models. Both condense history and track-structure methods were implemented to handle the electron and positron transport, although the latter is reliable only for simulations in liquid water. In addition, several user-supportive functions were developed, such as new tallies to efficiently obtain statistically better results, radioisotope source-generation function, and software tools useful for applying PHITS to medical physics. Owing to the continuous improvement and promotion of the code, the number of registered users has exceeded 3,000, and it is being used in diverse areas of study, including accelerator design, radiation shielding and protection, medical physics, and cosmic-ray research. In this paper, we summarize the basic features of PHITS3.02, especially those of the physics models and the functions implemented after the release of PHITS2.52 in 2013.. |
| 16. | Ye Yang,Makoto Yoshida,Masami Iio,Ken-ichi Sasaki,Toru Ogitsu,Tatsushi Nakamoto,Nobuhiro Shigyo, Study of Irradiation Effects on Thermal Characteristics for COMET Pion Capture Solenoid, IEEE Transactions on Applied Superconductivity, 10.1109/TASC.2017.2777848, 28, 3, 4001405, 2018.04, [URL]. |
| 17. | Nobuhiro Shigyo, Nuclear Data Measurements at Center for Accelerator and Beam Applied Science, Kyushu University, Proceedings of the 2016 Symposium on Nuclear Data November 17-18, 2016, High Energy Accelerator Research Organization, Tsukuba, Ibaraki, Japan, DOI:10.11484/jaea-conf-2017-001, JAEA-Conf 2017-001, 29 - 34, 2018.01, [URL]. |
| 18. | Tatsuhiko Sato, Yosuke Iwamoto, Shintaro Hashimoto, Tatsuhiko Ogawa, Takuya Furuta, Shin-ichiro Abe, Takeshi Kai, Pi-En Tsai, Norihiro Matsuda, Hiroshi Iwase, Nobuhiro Shigyo, Lembit Sihver, Koji Niita, Features of Particle and Heavy Ion Transport code System (PHITS) version 3.02, Journal of Nuclear Science and Technology, 10.1080/00223131.2017.1419890, 2018.01. |
| 19. | Shouhei Araki, Kazuhiro Kondo, Tadahiro KIN, 渡辺 幸信, Nobuhiro Shigyo, 相良 建至, Measurement of Gamma-ray Yield from ick Carbon Target Irradiated by 5 and 9 MeV Deuterons, Journal of Radiation Protection and Research, 10.14407/jrpr.2017.42.1.16, 42, 1, 16-20, 2017.03, [URL]. |
| 20. | Ken-Ichi Kimura, Tomohiro Ogata, Mikihiro Nakata, Nobuhiro Shigyo, Yoshihiro Hirao, Yukio Sakamoto, Discussion on the standardization of concrete composite for radiation shielding design I - Concept of standard concrete for radiation shielding, 2017 International Congress on Advances in Nuclear Power Plants: A New Paradigm in Nuclear Power Safety, ICAPP 2017 2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings, 2110-2115, Code 131581, 2018.02, Concrete is widely used as radiation shield in nuclear reactors and irradiation facilities, because of its flexibility and sufficient supply. However, there are few discussions on the content of the shielding concrete composition, and very old data (which have uncertain information regarding material properties beside of elemental data) are still used in the shielding calculation. So, we organized "Radiation Shielding Material Standardization Working Group under Atomic Energy Society of Japan (AESJ) in order to proceed the standardization of shielding concrete. In this paper, the concept of standard concrete for radiation shield is proposed based on the building material aspects, such as mixture proportion, ratio of water to cement, cement hydration and so on. Furthermore, a few candidates of the standard concrete are listed from various data for raw materials of concrete (aggregate and cement). Based on the above trial introduction of the standard concrete, some sensitivity analyses were conducted for simple cylindrical geometry with proton beam incidence on an iron target. The investigation indicated that the proposed trail standard data located intermediate positions among other concrete data and water contents in the concrete were dominant for the dose attenuation.. |
| 21. | Yutaro Itashiki, Yoichi Imahayashi, Nobuhiro Shigyo, Yusuke Uozumi, Daiki Sato, Tsuyoshi Kajimoto, Toshiya Sanami, Yusuke Koba, Naruhiro Matsufuji, Measurement of Neutron Production Double- di erential Cross-sections on Carbon Bombarded with 430 MeV/Nucleon Carbon Ions, Journal of Radiation Protection and Research, https://doi.org/10.14407/jrpr.2016.41.4.344, 41, 4, 344-349, 2016.12, [URL]. |
| 22. | Daiki Satoh, Tsuyoshi Kajimoto, Nobuhiro Shigyo, Yutaro Itashiki, Yoichi Imahayashi, Yusuke Koba, Naruhiro Matsufuji, Noriaki Nakao, Yusuke Uozumi, Distributions of neutron yields and doses around a water phantom bombarded with 290-MeV/nucleon and 430-MeV/nucleon carbon ions, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 10.1016/j.nimb.2016.09.011, 387, 10-19, 2016.11, [URL]. |
| 23. | Yutaro Itashiki, Youichi Imahayashi, Nobuhiro Shigyo, Yusuke Uozumi, Daiki Satoh, Tsuyoshi Kajimoto, Toshiya Sanami, Yusuke Koba, Naruhiro Matsufuji, Measurements of neutron production double-differential cross-sections and thick target neutron yields on carbon bombarded with 430 MeV/nucleon carbon ions, Proceedings of the 2015 Symposium on Nuclear Data November 19-20, 2015, Ibaraki Quantum Beam Research Center, Tokai-mura, Ibaraki, Japan, http://dx.doi.org/10.11484/jaea-conf-2016-004, 2016, 004, 171-176, 2016.09. |
| 24. | Satoshi Kunieda, Osamu Iwamoto, Nobuyuki Iwamoto, Futoshi Minato, Tsutomu Okamoto, Tatsuhiko Sato, Hiroshi Nakashima, Yosuke Iwamoto, Hiroki Iwamoto, Fumito Kitatani, Tokio Fukahori, Yukinobu Watanabe, Nobuhiro Shigyo, Satoshi Chiba, Naoki Yamano, Masayuki Hagiwara, Koji Niita, Kazuaki Kosako, Shusuke Hirayama, Overview of JENDL-4.0/HE and Benchmark Calculations, Proceedings of the 2015 Symposium on Nuclear Data November 19-20, 2015, Ibaraki Quantum Beam Research Center, Tokai-mura, Ibaraki, Japan, http://dx.doi.org/10.11484/jaea-conf-2016-004, 2016, 004, 41-46, 2016.09. |
| 25. | Md. Mamunur Rashid, Nobuhiro Shigyo, KENJI ISHIBASHI, Nobuyuki Iwamoto, Osamu Iwamoto, Evaluation of neutron nuclear data on krypton isotopes, Proceedings of the 2014 Symposium on Nuclear Data November 27-28, 2014, Conference Hall, Hokkaido University, Sapporo, Japan, http://dx.doi.org/10.11484/jaea-conf-2015-003, 2015, 003, 319-324, 2016.03. |
| 26. | Tsuyoshi Kajimoto, Yutaro Itashiki, Youichi Imahayashi, Hideharu Yoneshige, Taro Hashiguchi, Nobuhiro Shigyo, Daiki Satoh, Yusuke Uozumi, Kenichi Tanaka, Satoru Enho, Measurement of double differential cross sections of light ion emission in interaction of 430 MeV/u carbon ions with a carbon, Proceedings of the 2014 Symposium on Nuclear Data November 27-28, 2014, Conference Hall, Hokkaido University, Sapporo, Japan, http://dx.doi.org/10.11484/jaea-conf-2015-003, 2015, 003, 265-270, 2016.03. |
| 27. | Youichi Imahayashi, Yutaro Itashiki, Nobuhiro Shigyo, Yusuke Uozumi, Daiki Satoh, Tsuyoshi Kajimoto, Toshiya Sanami, Yusuke Koba, Naruhiro Matsufuji, Cheol-Woo Lee, Measurement of γ-ray production cross sections and yields from carbon induced by 500 MeV/u iron beam, Proceedings of the 2014 Symposium on Nuclear Data November 27-28, 2014, Conference Hall, Hokkaido University, Sapporo, Japan, http://dx.doi.org/10.11484/jaea-conf-2015-003, 2015, 003, 159-164, 2016.03. |
| 28. | Md Mamunur Rashid, Nobuhiro Shigyo, Kenji Ishibashi, Nobuyuki Iwamoto, Osamu Iwamoto, Evaluation of neutron nuclear data on xenon isotopes, Journal of Nuclear Science and Technology, 10.1080/00223131.2015.1105164, 53, 9, 1310-1320, 2015.12, [URL], Neutron nuclear data of Xe isotopes have been evaluated in the energy region, including the resolved resonance one, from 1 keV to 20 MeV by using the theoretical nuclear reaction models. The phenomenological optical model potential was employed to calculate the total cross section for natural Xe with the coupled-channels method. The cross sections for channels of capture, (n, 2n), (n, p) and (n, α) reactions were calculated and compared with available experimental results including recently measured data. The elastic scattering angular distributions and particle emission spectra were calculated, although there is no experimental information available. Reaction cross sections of evaluated libraries were considered for comparison with the calculated results. The presently calculated cross sections reproduce better the available experimental data.. |
| 29. | Shouhei Araki, Yukinobu Watanabe, Tadahiro Kin, Nobuhiro Shigyo, Kenshi Sagara, Measurement of Double Differential Neutron Yields from Thick Aluminum Target Irradiated by 9 MeV Deuteron, 4th International Symposium on Innovative Nuclear Energy Systems, INES 2013 Energy Procedia, 10.1016/j.egypro.2014.11.870, 71, 197-204, 2015.05, Double differential neutron yields from a thick aluminum target irradiated by 9 MeV deuterons were measured at the Kyushu University Tandem accelerator Laboratory (KUTL). An NE213 liquid organic scintillator (50.4 mm thick and 50.4 mm in diameter) was used as a neutron detector. Neutron yields from the target were measured at nine angles between 0° and 140°. The neutron energy spectra were obtained by means of an unfolding method using FORIST code with the response function of the NE213 scintillator calculated by SCINFUL-QMD code. The experimental result was compared with other measured data at 5 and 40 MeV and the calculation based on intra-nuclear cascade of Liège (INCL) model in PHITS code.. |
| 30. | Youichi Imahayashi, Nobuhiro Shigyo, Yusuke Uozumi, Yutaro Itashiki, Daiki Satoh, Tsuyoshi Kajimoto, Toshiya Sanami, Yusuke Koba, Masashi Takada, Naruhiro Matsufuji, Measurement of Cross Sections and Yields of Neutron Produced by 100 MeV/u C(C,xn) Reaction, Proceedings of the 2013 Symposium on Nuclear Data November 14-15, 2013, Research Insitute of Nuclear Engineering University of Fukui, Tsuruga, Fukui, Japan, http://dx.doi.org/10.11484/jaea-conf-2014-002, 2014, 002, 133-138, 2015.02. |
| 31. | Tsuyoshi Kajimoto, Taro Hashiguchi, Nobuhiro Shigyo, Daiki Satoh, Yusuke Uozumi, Tae-Yung Song, Cheol-Woo Lee, Jong Woon Kim, Sung-Chul Yang, Yusuke Koba, Naruhiro Matsufuji, Satoru Endo, Measurement of Proton, Deuteron, and Triton Production Double Differential Cross Sections on Carbon by 290 MeV/nucleon Ar ions, Proceedings of the 2013 Symposium on Nuclear Data November 14-15, 2013, Research Insitute of Nuclear Engineering University of Fukui, Tsuruga, Fukui, Japan, http://dx.doi.org/10.11484/jaea-conf-2014-002, 2014, 002, 127-132, 2015.02. |
| 32. | Y. IWAMOTO, T. SANAMI, T. KAJIMOTO, N. SHIGYO, M. HAGIWARA, H.S. LEE, A. SOHA, E.RAMBERG, R.COLEMAN, D.JENSEN, A. LEVELING, N.V.MOKHOV, D.BOREHEN, K. VAZLI, Y. SAKAMOTO, H. NAKASHIMA, Measurement of Thick Target Neutron Energy Spectra at 15° and 90° Bombarded with 120-GeV Protons, Progress in Nuclear Science and Technology, 10.15669/pnst.3.65, 3, 65-68, 2012.10. |
| 33. | Nobuhiro Shigyo, Yusuke Uozumi, Youichi Imahayashi, Yutaro Itashiki, Daiki Satoh, Tsuyoshi Kajimoto, Toshiya Sanami, Yusuke Koba, Naruhiro Matsufuji, Tae-Yung Song, Cheol-Woo Lee, Jong Woon Kim, Sung-Chul Yang, Measurement of Neutron Production Cross Sections from Heavy Ion Induced Reaction, Proceedings of the 2013 Symposium on Nuclear Data November 14-15, 2013, Research Insitute of Nuclear Engineering University of Fukui, Tsuruga, Fukui, Japan, http://dx.doi.org/10.11484/jaea-conf-2014-002, 2014, 002, 81-87, 2015.02. |
| 34. | Tsuyoshi Kajimoto, Nobuhiro Shigyo, Toshiya Sanami, Yosuke Iwamoto, Masayuki Hagiwara, LEE Hee Seok, Aria Soha, Erick Ramberg, Rick Coleman, Doug Jensen, Anthony Leveling, Nikoail V. Mokhov, David Boehnlein, Kamran Vaziri, Yukio Sakamoto, Kenji Ishibashi, Hiroshi Nakashima, Measurements and parameterization of neutron energy spectra from targets bombarded with 120 GeV protons, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 10.1016/j.nimb.2014.07.019, 337, 68-77, 2014.10, [URL]. |
| 35. | Nobuhiro Shigyo, Yusuke Uozumi, Haruhiko Uehara, Tomoya Nishizawa, Takafumi Mizuno, Masahiro Takamiya, Taro Hashiguchi, Daiki Satoh, Toshiya Sanami, Yusuke Koba, Masashi Takada, Naruhiro Matsufuji, Measurement of 100- and 290-MeV/A Carbon Incident Neutron Production Cross Sections for Carbon, Nitrogen and Oxygen, Nuclear Data Sheets, DOI: 10.1016/j.nds.2014.08.083, 119, 303-306, 2014.05, [URL]. |
| 36. | Nobuhiro Shigyo, Yusuke Uozumi, Haruhiko Uehara, Tomoya Nishizawa, Keiichi Hirabayashi, Daiki Satoh, Toshiya Sanami, Yusuke Koba, Masashi Takada, Naruhiro Matsufuji, Measurement of neutron yields from a water phantom bombarded by 290 MeV/u carbon ions, Progress in Nuclear Science and Technology, DOI:10.15669/pnst.4.709, 4, 709-712, 2014.04, [URL]. |
| 37. | Yuta Tajiri, Yukinobu Watanabe, Nobuhiro Shigyo, Keiichi Hirabayashi, Tomoya Nishizawa, Kenshi Sagara, Measurement of double differential neutron yields from thick carbon target irradiated by 5-MeV and 9-MeV deuterons, Progress in Nuclear Science and Technology, DOI:10.15669/pnst.4.582, 4, 582-586, 2014.04, [URL]. |
| 38. | Toshiya Sanami, Yosuke Iwamoto, Tsuyoshi Kajimoto, Nobuhiro Shigyo, Masayuki Hagiwara, Hee-Seock Lee, Erik Ramberg, Aria Soha, Douglas Jensen, Anthony Leveling, Nikolai Mokhov, David Boehnlein, Kamran Vaziri, Kenji Ishibashi, Yukio Sakamoto, Hiroshi Nakashima, Systematics of thick target neutron yields for reactions of hundred GeV protons on target, Progress in Nuclear Science and Technology, DOI:10.15669/pnst.4.341, 4, 341-344, 2014.04, [URL]. |
| 39. | Nobuhiro Shigyo, Yusuke Uozumi, Haruhiko Uehara, Tomoya Nishizawa, Takafumi Mizuno, Daiki Satoh, Toshiya Sanami, Yusuke Koba, Masashi Takada, Naruhiro Matsufuji, Measurement of 100 MeV/u carbon incident neutron production cross sections on a carbon target, Proceedings of the 2012 Symposium on Nuclear Data, November 15-16, 2012, Research Reactor Insitute, Kyoto University, Kumatori, Japan, 2013, 002, 137-142, 2013.10. |
| 40. | Tsuyoshi Kajimoto, Nobuhiro Shigyo, Kenji Ishibashi, Hiroyuki Arakawa, Robert C. Haight, Nikolaos Fotiades, Measurement of neutron-induced proton-production energy spectra with NE213 scintillator, Radiation Measurements, 10.1016/j.radmeas.2012.06.020, 47, 8, 596-608, 2012.08, Many benchmark data are required for the improvement of theoretical model implemented in a Monte Carlo code for particle transport. To acquire the benchmark data, we measured energy spectra of protons emitted from graphite, aluminum, and iron targets bombarded with continuous-energy neutrons, which enable simultaneous measurements at the incident energies from 100 to 600 MeV at a time. The neutron flux incident on the target was measured with a 238U fission ionization chamber. Protons emitted from the target were measured with three ΔE-E detectors consisting of a thin NE102A scintillator and a thick NE213 liquid scintillator. In the analysis, the pulse shape discrimination of the NE213 scintillator enable us to distinguish events for a charged particle stopping in the scintillator from events for a charged particle penetrating the scintillator. Experimental results were compared with calculations by the PHITS code coupled with the JENDL-HE file, the Bertini model implemented in the PHITS code, and the PEANUT model in the FLUKA code.. |
| 41. | Haruhiko UEHARA, Daisuke MORIGUCHI, Tsuyoshi KAJIMOTO, Keiichi HIRABAYASHI, Hidetaka HIRANO, Tomoya NISHIZAWA, Nobuhiro SHIGYO, Yusuke UOZUMI, Daiki SATOH, Toshiya SANAMI, Yusuke KOBA, Masashi TAKADA, Naruhiro MATSUFUJI, Measurement of Gamma-ray-Production Double-Differential Cross Section for 290 MeV/u Oxygen Ion Incidence, Proceedings of the 2011 Symposium on Nuclear Data, November 16-17, 2011, Ricotti, Tokai, Japan, JAEA-Conf 2012-001, 135 - 140, 2012.07, [URL]. |
| 42. | Hiroki Takahashi, Sunao Maebara, Hironao Sakaki, Keiichi Hirabayashi, Kosuke Hidaka, Nobuhiro Shigyo, Yukinobu Watanabe, Kenshi Sagara, Evaluation of gamma-ray and neutron energy for area monitoring system in the IFMIF/EVEDA accelerator building, FUSION ENGINEERING AND DESIGN, 10.1016/j.fusengdes.2012.02.109, 87, 7-8, 1235-1238, 2012.08. |
| 43. | Hiroki TAKAHASHI, Sunao MAEBARA, Hironao SAKAKI, Keiichi HIRABAYASHI, Kosuke HIDAKA, Nobuhiro SHIGYO, Yukinobu WATANABE, Kenshi SAGARA, Evaluation of energy reduction in main shielding materials for gamma-ray and neutron generated by deuteron beam at 5MeV and 9MeV, Proceedings of the 2011 Symposium on Nuclear Data, November 16-17, 2011, Ricotti, Tokai, Japan, JAEA-Conf 2012-001, 77 - 81, 2012.07, [URL]. |
| 44. | Sunao MAEBARA, Hiroki Takahashi, Hironao Sakaki, Keiichi Hirabayashi, Kosuke Hidaka, Nobuhiro Shigyo, Yukinobu Watanabe and Kenshi Sagara, Activation analyses by deuteron beam loss at 5-9MeV for the IFMIF/EVEDA accelerator, Proceedings of the 2011 Symposium on Nuclear Data, November 16-17, 2011, Ricotti, Tokai, Japan, JAEA-Conf 2012-001, 73 - 76, 2012.07, [URL]. |
| 45. | T. Sanami, Y. Iwamoto, T. Kajimoto, N. Shigyo, M. Hagiwara, H.S. Lee, E. Ramberg, R. Coleman, A. Soha, D. Jensen, A. Leveling, N.V. Mokhov, D. Boehnlein, K. Vaziri, K. Ishibashi, Y. Sakamoto, H. Nakashim, Methodology for the neutron time of flight measurement of 120-GeV proton-induced reactions on a thick copper target, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, doi:10.1016/j.nimb.2011.11.041, 274, 26 - 35, 2012.03. |
| 46. | Tsuyoshi Kajimoto, Nobuhiro Shigyo, Toshiya Sanami, Kenji Ishibashi, Robert C. Haight, Nikolaos Fotiades, Measurement of absolute response functions and detection efficiencies of an NE213 scintillator up to 600 MeV, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 10.1016/j.nima.2011.11.055, 665, 80-89, 2011.02. |
| 47. | Yusuke Uozumi, Nobuhiro Shigyo, Tsuyoshi Kajimoto, Daiki Satoh, Toshiya Sanami, Yusuke Koba, Masashi Takada, Naruhiro Matsufuji, Study of secondary neutrons and gamma-rays in heavy-ion therapy, ICIC Express Letters, 6, 6, 1677-1682, 2012.06, In the heavy-ion radiotherapy, secondary neutrons are produced by nuclear reactions along the primary beam. The risk of second cancer induction is under con- siderable discussion. It is needed to develop a Monte-Carlo simulation tool to estimate neutron doses and the photon contribution. In the present work, we conducted exper- iments at the synchrotron HIMAC of NIRS, Japan. First, we measured energy-angle double-differential cross sections of neutron and γ-ray productions in nuclear reactions. Secondly, neutron doses were measured in a 3D tissue-equivalent phantom.. |
| 48. | Hiroki Takahashi, Sunao Maebara, Toshiyuki Kojima, Takashi Kubo, Hironao Sakaki, Hiroshi Takeuchi, Hiroyuki Shidara, Keiichi Hirabayashi, Kosuke Hidaka, Nobuhiro Shigyo, Yukinobu Watanabe, Kenshi Sagara, Design of gamma-ray and neutron area monitoring system for the IFMIF/EVEDA accelerator building, FUSION ENGINEERING AND DESIGN, 10.1016/j.fusengdes.2011.02.074, 86, 9-11, 2795-2798, 2011.10. |
| 49. | Hiroki TAKAHASHI, Sunao MAEBARA, Hironao SAKAKI, Keiichi HIRABAYASHI, Kosuke HIDAKA, Nobuhiro SHIGYO, Yukinobu WATANABE, Kenshi SAGARA, Evaluation of gamma-ray and neutron energy in the IFMIF/EVEDA accelerator building, JAEA-Conf, 2011-002, 205 - 209, 2011.09. |
| 50. | Tsuyoshi KAJIMOTO, Toshiya SANAMI, Yosuke IWAMOTO, Nobuhiro SHIGYO, Masayuki HAGIWARA, Kiwamu SAITOH, Hiroshi NAKASHIMA, Kenji ISHIBASHI, Hee-Seock LEE, Eric RAMBERG, Richard COLEMAN, Doug JENSEN, Aria SOFA, Nikolai V. MOKHOV, Anthony F. LEVELING, David J. BOEHNLEIN, Kamran VAZIRI, Neutron yields for reaction induced by 120 GeV proton on thick copper target, JAEA-Conf, 2011-002, 147 - 152, 2011.09. |
| 51. | Daisuke MORIGUCHI, Haruhiko UEHARA, Tsuyoshi KAJIMOTO, Keiichi HIRABAYASHI, Hidetaka HIRANO, Tomoya NISHIZAWA, Nobuhiro SHIGYO, Yusuke UOZUMI, Daiki SATOH, Toshiya SANAMI, Yusuke KOBA, Masashi TAKADA, Naruhiro MATSUFUJI, Measurementof Neutron-Production Double-Differential Cross Sections for 290 MeV/u Oxygen Ion Incidence, JAEA-Conf, 2011-002, 141 - 146, 2011.09. |
| 52. | Keiichi HIRABAYASHI, Tomoya NISHIZAWA, Haruhiko UEHARA, Hidetaka HIRANO, Daisuke MORIGUHCI, Tsuyoshi KAJIMOTO, Nobuhiro SHIGYO, Kosuke HIDAKA, Yuki OSHIMA, Makoto MAEDA, Takashi YASUMUNE, Keisuke MAEHATA, Yuta TAJIRI, Hiroshi UMISHIO, Shusuke HIRAYAMA, Shinichirou ABE, Yukinobu WATANABE, Kenshi SAGARA, Sunao MAEBARA, Hiroki TAKAHASHI, Hironao SAKAKI, Measurement of Deuteron Induced Thick Target Neutron Yields at 5 MeV and 9 MeV, JAEA-Conf, 2011-002, 113 - 118, 2011.09. |
| 53. | D. Moriguchi, Y. Nakamura, T. Kajimoto, Y. Koba, M. Ueyama, M. Yoshioka, N. Shigyo, Y. Uozumi, D. Satoh, T. Sanami, M. Takada and N. Matsufuji, Measurement of Neutron-Production Cross Sections for 290MeV/u Carbon IonIncidence, Journal of the Korean Physical Society, doi: 10.3938/jkps.59.1789, 59, 2, 1789-1792, 2011.08. |
| 54. | Y. Kasugai, N. Matsuda, Y. Iwamoto, Y. Sakamoto, H. Nakashima, H. Matsumura, N. Kinoshita, H. Iwase, T. Sanami, M. Hagiwara, H. Hirayama, H. Yashima, N. Sigyo, H. Arakawa, K. Ishibashi, N. Mokhov, A. Leveling, D. Boehnlein, K. Vaziri, G. Lauten, S. Wayne, V. Cupps, B. Kershisnik, S. Benesch, T. Nakamura, K. Oishi and K. Niita, Shielding Experiments under JASMIN Collaboration at Fermilab (I) Overview of the Research Activities, Journal of the Korean Physical Society, doi: 10.3938/jkps.59.2063, 59, 2, 2063-2066, 2011.08. |
| 55. | D. Satoh, D. Moriguchi, T. Kajimoto, Y. Koba, Y. Nakamura, N. Shigyo, M. Ueyama, Y. Uozumi, M. Yoshioka, N. Matsufuji, M. Takada and T. Sanami, Neutron-Production Double-Differential Cross Sections from Heavy-Ion Interactions, Journal of the Korean Physical Society, doi: 10.3938/jkps.59.1741, 59, 2, 1741-1744, 2011.08. |
| 56. | N. Shigyo, K. Hidaka, K. Hirabayashi, Y. Nakamura, D. Moriguchi, M. Kumabe and H. Hirano, S. Hirayama, Y. Naitou , C. Motooka , C. Lan , T. Watanabe, Y. Watanabe, K. Sagara, S. Maebaru, H, Sakaki and H. Takahashi, Measurement of Deuteron Induced Thick Target Neutron Yields at 9 MeV, Journal of the Korean Physical Society, doi: 10.3938/jkps.59.1725, 59, 2, 1725-1728, 2011.08. |
| 57. | T. Kajimoto, N. Shigyo, K. Ishibashi, D. Moriguchi, Y. Nakamura, H. Arakawa, S. Kunieda, T. Watanabe, R.C. Haight, Measurements of Neutron-Induced Neutron-Production Double-Differential CrossSections from 50 to 150 MeV, Journal of the Korean Physical Society, doi: 10.3938/jkps.59.1721, 59, 2, 1721-1724, 2011.08. |
| 58. | Y. Watanabe, K. Kosako, S. Kunieda, S. Chiba, R. Fujimoto, H. Harada, M. Kawai, F. Maekawa, T. Murata, H. Nakashima, K. Niita, N. Shigyo, S. Shimakawa, N. Yamano and T. Fukahori, Status of JENDL High Energy File, Journal of the Korean Physical Society, doi: 10.3938/jkps.59.1040, 59, 2, 1040-1045, 2011.08. |
| 59. | M. Yoshioka, M. Ueyama, Y. Koba, Y. Nakamura, T. Kajimoto, D. Moriguchi, Y. Uozumi, N. Shigyo, D. Sato, T. Sanami, M. Takada, Study of pulse shape discrimination of sub-MeV neutrons from gamma-rays with liquid scintillator, Journal of the Korean Physical Society, 10.3938/jkps.59.1971, 59, 23, 1971-1974, 2011.08, We have studied pulse shape discrimination of sub-MeV neutron from spallation nuclear reactions. Neutron measurements were carried out with a 2-inch NE213 scintillator viewed by a phototube (HAMAMATSU H1949) for the carbon-carbon reaction at 290 MeV/n. Neuron energies were mea- sured with the TOF technique by using a timing pick-up plastic scintillator. Output signals of detectors were digitized and stored with a digitizer (Acqiris DC282). The digital pulse shape dis- crimination (DPSD) has been investigated through comparison between three different analyzing algorithms. Effects on the neutron-gamma (n/g) discrimination were also investigated after the subtraction of background and abnormal events. Moreover, in order to realize better n/g discrimi- nation the detector system was cooled down to about zero degrees centigrade by Peltier devices to suppress the dark current of the phototube which would be the main cause distorting pulse shapes. Experimental studies were made in terms of the temperature dependence of detector performance including pulse shape.. |
| 60. | Daiki Satoh, Daisuke Moriguchi, Tsuyoshi Kajimoto, Haruhiko Uehara, Nobuhiro Shigyo, Masahiko Ueyama, Masakatsu Yoshioka, Yusuke Uozumi, Toshiya Sanami, Yusuke Koba, Masashi Takada, and Naruhiro Matsufuji, Measurement of neutron-production double-differential cross-sections on carbon bombarded with 290-MeV/nucleon carbon and oxygen ions, Nuclear Instruments and Methods in Physics Research A, 10.1016/j.nima.2011.04.054, 644, 1, 59-67, 2011.05. |
| 61. | Tatsuhiko Sato, Daiki Satoh, Akira Endo, Nobuhiro Shigyo, Fusao Watanabe, Hiroki Sakurai and Yoichi Arai, Upgrades of DARWIN, a dose and spectrum monitoring system applicable to various types of radiation over wide energy ranges, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, http://dx.doi.org/10.1016/j.nima.2011.02.027, 637, 1, 149 - 157, 2011.05. |
| 62. | , [URL]. |
| 63. | Yusuke UOZUMI, Hiroki IWAMOTO, Yusuke KOBA, Naruhiro MATSUFUJI, Toshiya SANAMI, Daiki SATOH, Nobuhiro SHIGYO, Masashi TAKADA, Masahiko UEYAMA, Masakatsu YOSHIOKA, Mamoru BABA, Study of neutron and photon production cross sections for second cancer risk assessment in heavy-ion therapy, Progress in Nuclear Science and Technology, 1, 114 - 117, 2011.02, [URL]. |
| 64. | Tsuyoshi KAJIMOTO, Daisuke MORIGUCHI, Yasuhiro NAKAMURA, Hiroyuki ARAKAWA, Shusaku NODA, Nobuhiro SHIGYO, Kenji ISHIBASHI, Satoshi KUNIEDA, Takehito WATANABE, Robert C. HAIGHT, Measurements of Neutron-production Double-differential Cross-sections at 100 MeV Neutron-Incidence on Fe, Progress in Nuclear Science and Technology, 1, 81 - 84, 2011.02, [URL]. |
| 65. | Applicability of a bonner sphere technique for neutron spectrum measurements in a pulsed neutron field of the 120-GeV proton facility. |
| 66. | Masayuki HAGIWARA, Toshiya SANAMI, Yosuke IWAMOTO, Hiroyuki ARAKAWA, Nobuhiro SHIGYO, Nikolai MOKHOV, Anthony LEVELING, David BOEHNLEIN, Vaziri KAMRAN, Takashi NAKAMURA, Koji OISHI, Hideo HIRAYAMA, Hiroshi NAKASHIMA, Yukio SAKAMOTO, members of JASMIN corrcorroboration, Shielding Experiments at High Energy Accelerators of Fermilab (III): Neutron Spectrum Measurements in Intense Pulsed Neutron Fields of The 120-GeV Proton Facility Using A Current Bonner Sphere Technique, Progress in Nuclear Science and Technology, 1, 52 - 56, 2011.02, [URL]. |
| 67. | Toshiya SANAMI, Yosuke IWAMOTO, Nobuhiro SHIGYO, Masayuki HAGIWARA, Hee-Seock Lee, Anthony LEVELING, Kamran VAZILI, David BOEHNLEIN, Nikolai MOKHOV, Yukinori SAKAMOTO, Hiroshi NAKASHIMA, members of JASMIN corroboration, Shielding Experiments at High Energy Accelerators of Fermilab(I) - Dose Rate Around High Intensity Muon Beam -, Progress in Nuclear Science and Techonolgy, 1, 44 - 47, 2011.02, [URL]. |
| 68. | Hiroshi Nakashima, Nikolai V. Mokhov, Yoshimi Kasugai, Norihiro Matsuda, Yosuke Iwamoto, Yukio Sakamoto, Anthony F. Leveling, David J. Boehnlein, Kamran Vaziri, Toshiya Sanami, Hiroshi Matsumura, Masayuki Hagiwara, Hiroshi Iwase, Syuichi Ban, Hideo Hirayama, Takashi Nakamura, Koji Oishi, Nobuhiro Shigyo, Hiroyuki Arakawa, Tsuyoshi Kajimoto, Kenji Ishibashi, Hiroshi Yashima, Shun Sekimoto, Norikazu Kinoshita, Hee-Seock Lee, Koji Niita, JASMIN: Japanese-American study of muon interactions and neutron detection, Shielding Aspects of Accelerators, Targets and Irradiation Facilities – SATIF-10, 10th Workshop Proceedings, 10.1787/9789264096509-en, 235 - 247, 2011.01. |
| 69. | Nobuhiro Shigyo, Toshiya Sanami, Tsuyoshi Kajimoto, Yosuke Iwamoto, Masayuki Hagiwara, Kiwamu Saito, Kenji Ishibashi , Hiroshi Nakashima, Yukio Sakamoto, Hee-Seock Lee, Erik Ramberg, Aria A. Meyhoefer, Rick Coleman, Doug Jensen, Anthony F. Leveling, David J. Boehnlein, Kamran Vaziri, Nikolai V. Mokhov, Neutron energy spectrum from 120 GeV protons on a thick copper target, Shielding Aspects of Accelerators, Targets and Irradiation Facilities – SATIF-10, 10th Workshop Proceedings, 10.1787/9789264096509-en, 65 - 73, 2011.01. |
| 70. | Abul Kalam Md. Lutfor RAHMAN, Kunio KATO, Hidehiko ARIMA, Nobuhiro SHIGYO, Kenji ISHIBASHI, Jun-ichi HORI and Ken NAKAJIMA, Study on Effective Average (γ, n) Cross Section for 89Y, 90Zr, 93Nb, and 133Cs and (γ, 3n) Cross Section for 99Tc, Journal of Nuclear Science and Technology, 47, 7, 618-625, 2010.07. |
| 71. | H. Nakashima, Y. Sakamoto, Y. Iwamoto, N. Matsuda, Y. Kasugai, Y. Nakane, F. Masukawa, N. V. Mokhov, A. F. Leveling, D. J. Boehnlein, K. Vaziri, T. Sanami, H. Matsumura, M. Hagiwara, H. Iwase, N. Kinoshita, H. Hirayama, K. Oishi, T. Nakamura, H. Arakawa, N. Shigyo, K. Ishibashi, H. Yashima, N. Nakao, K. Niita, Experimental Studies of Shielding and Irradiation Effects at High-Energy Accelerator Facilities, Nuclear Technology, 168, 2, 482-486, 2009.11. |
| 72. | T. SATO, D. SATOH, A. ENDO, N. SHIGYO, H. YASUDA, M. TAKADA, K. YAJIMA, T. NAKAMURA, The Recent Improvement and Verification of Darwin: Development of A New DAQ System and Results of Flight Experiment, Nuclear Technology, 168, 1, 113 - 117, 2009.10. |
| 73. | Y. NAKAMURA, T. KAJIMOTO, N. SHIGYO, H. ARAKAWA, D. MORIGUCHI, S. NODA, T. WATANABE, K. ISHIBASHI, R. C. HAIGHT, Measurement of Neutron-Production Double-Differential Cross Section for Continuous-Energy Neutron-Incidence on Al, Proceedings of the 2008 Annual Symposium on Nuclear Data (NDS 2008), November 20 - 21, 2008, Tokai, Japan, JAEA-Conf, 2009-004, 89 - 94, 2009.10. |
| 74. | Abul Kalam Md. Rutfor RAHMAN, Shigeyuki KUWABARA, Kunio KATO, Hidehiko ARIMA, Nobuhiro SHIGYO, Kenji ISHIBASHI, Jun-ichi HORI, Ken NAKAJIMA, Tetsuo GOTO, Mikio UEMATSU, Measurement of the photonuclear (γ, n) reaction cross section for 129I using bremsstrahlung photons, Nuclear Science and Engineering, 160 (3) 363 - 369, 2008.11. |
| 75. | Ikuo OHTA, Takenori MATSUURA, Nobuhiro SHIGYO, Kenji ISHIBASHI, Design of Epithermal Neutron Field Generated by 150-MeV Proton Beam Injections for Boron Neutron Capture Therapy, the Fourth International Symposium on Radiation Safety and Detection Technology (ISORD-4), Journal of Nuclear Science and Technology, Supplement 5, pp. 249 – 252, 2008.06. |
| 76. | Hiroyuki ARAKAWA, Tsuyoshi KAJIMOTO, Shusaku NODA, Takehito WATANABE, Nobuhiro SHIGYO, Kenji ISHIBASHI, Satoshi KUNIEDA, Robert C. HAIGHT, Neutron-Production Double-Differential Cross Sections for 100 MeV Neutron-Incidence on In, the Fourth International Symposium on Radiation Safety and Detection Technology (ISORD-4), Journal of Nuclear Science and Technology, Supplement 5, pp. 116 – 119, 2008.06. |
| 77. | Abul Kalam Md. Rutfor RAHMAN, Shigeyuki KUWABARA, Kunio KATO, Hidehiko ARIMA, Nobuhiro SHIGYO, Kenji ISHIBASHI, Jun-ichi HORI, Ken NAKAJIMA, Tetsuo GOTO, Mikio UEMATSU, Measurement of (γ, n) Reaction Cross Section for Long-lived β-emitting Radionuclide 129I by using Bremsstrahlung Photons, the Fourth International Symposium on Radiation Safety and Detection Technology (ISORD-4), Journal of Nuclear Science and Technology, Supplement 5, pp. 329 – 332, 2008.06. |
| 78. | Tsuyoshi KAJIMOTO, Hiroyuki ARAKAWA, Shusaku NODA, Takehito WATANABE, Nobuhiro SHIGYO, Kenji ISHIBASHI, Robert C. HAIGHT, Study of Recoil-Proton-Detector System Using Organic and Inorganic Scintillators for High Energy Neutron Measurement, the Fourth International Symposium on Radiation Safety and Detection Technology (ISORD-4), Journal of Nuclear Science and Technology, Supplement 5, pp. 526 – 529, 2008.06. |
| 79. | Shusaku Noda, Takehito Watanabe, Nobuhiro Shigyo, Kenji Ishibashi, Daiki Satoh, Tatsuhiko Sato, Takashi Nakamura, Robert C. Haight, Measurement of continuous-energy neutron-incident neutron-production double-differential cross sections for Al up to several hundred MeV, The 2007 International Conference on Nuclear Data for Science and Technology, 1043 - 1046, 2008.06. |
| 80. | Nobuhiro Shigyo, Kenji Ishibashi, Satoshi Kunieda, Evaluation of Be and Li cross section data up to 200 MeV, The 2007 International Conference on Nuclear Data for Science and Technology, 1179 - 1182, 2008.06. |
| 81. | Abul Kalam Md. Lutfor Rahman, Shigeyuki Kuwabara, Kunio Kato, Hidehiko Arima, Nobuhiro Shigyo, Kenji Ishibashi, Jun-ichi Hori, Ken Nakajima, Tetsuo Goto and Mikio Uematsu, Measurement of inclusive photonuclear (γ,n) reaction cross section for 129I, The 2007 International Conference on Nuclear Data for Science and Technology, 529 - 532, 2008.06. |
| 82. | Measurement of (γ, n) reaction cross section for long-lived β-emitting radionuclide129I by using bremsstrahlung photons. |
| 83. | Ikuo Ohta, Takenori Matsuura, Nobuhiro Shigyo, Kenji Ishibashi, Design of Epithermal Neutron Field Generated by 150-MeV Proton Beam Injections for Boron Neutron Capture Therapy, JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 10.1080/00223131.2008.10875834, 249-252, 2008.06, An epithermal neutron field using a Fixed Field Alternating Gradient (FFAG) accelerator has been Studied by Kyushu University to develop epithermal neutron flux monitors. A spallation neutron source was utilized as the neutron generator. Tungsten was chosen as the target material. Iron, aluminum fluoride, and lead were selected for the moderator assembly material for high- and intermediate-energy neutrons and gamma rays, respectively. The Particle and Heavy Ion Transport code System (PHITS) was used to calculate the neutron flux on a water phantom surface and the RBE-weighted dose distributions in the phantom.. |
| 84. | Tsuyoshi Kajimoto, Hiroyuki Arakawa, Shusaku Noda, Takehito Watanabe, Nobuhiro Shigyo, Kenji Ishibashi, Robert C. Haight, Study of Recoil-Proton-Detector System Using Organic and Inorganic Scintillators for High Energy Neutron Measurement, JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 10.1080/00223131.2008.10875907, 526-529, 2008.06, An optimized design for a recoil-proton-detector system is studied to measure (n, xn) cross sections of incident energies up to 300 MeV. The detector system is composed of a radiator to convert a neutron into a recoiled proton and a phoswich-type detector to detect the recoiled proton. The radiator is made of an NE213 liquid organic scintillator. The phoswich-type detector includes a BGO scintillator surrounded by an NE102A plastic scintillator. Optimal design is investigated by varying dimensions of the radiator and the phoswich detector. Calculations of detector properties are performed by the PHITS. The detector system is shown to have a capability to measure (n, xn) cross sections effectively.. |
| 85. | Y. Iwamoto, N. Shigyo, D. Satoh, S. Kunieda, T. Watanabe, S. Ishimoto, H. Tenzou, K. Maehata, K. Ishibashi, T. Nakamoto, M. Numajiri, S. Meigo, H. Takada, Measurement of pion induced neutron-production double-differential cross sections on Fe and Pb at 870 MeV and 2.1 GeV, Physical Review, 10.1103/PhysRevC.70.024602, 70, 2, C70, 024602 (8pages), 2004.08. |
| 86. | S. Kunieda, N. Shigyo, K. Ishibashi, Nuclear Data Evaluations on Zirconium, Niobium and Tungsten for Neutron and Proton Incidence up to 200 MeV, Journal of Nuclear Scienece and Technology, 10.3327/jnst.41.1047, 41, 11, 1047-1058, Vol. 11, pp. 1047 - 1058, 2004.11. |
| 87. | S. Meigo, N. Shigyo, K. Iga, Y. Iwamoto, H. Kitsuki, K. Ishibashi, K. Maehata, H. Arima, T. Nakamoto, M. Numajiri, Measurement of Neutron Spectra Produced from a Thick Iron Target Bombarded with 1.5-GeV Protons, Proceedings of International Conference on Nuclear Data for Science and Technology, Santa Fe, New Mexico, September 26 - October 1, 2004, AIP Conference Proceedings, 769, Part 1, 1513 - 1516, 2005.06. |
| 88. | T. Watanabe, S. Kunieda, N. Shigyo, K. Ishibashi, D. Satoh, Y. Iwamoto, T. Nakamura, R.C. Haight, Attempt to Measure (n, xn) Double-Differential Cross Sections for Incident Neutron Energies above 100 MeV, Proceedings of International Conference on Nuclear Data for Science and Technology, Santa Fe, New Mexico, September 26 - October 1, 2004, AIP Conference Proceedings, 769, 1062-1065, 769, Part 1, 1062 - 1065, 2005.06. |
| 89. | S. Kunieda, T. Watanabe, N. Shigyo, K. Ishibashi, Y. Iwamoto, D. Satoh, T. Nakamura, R.C. Haight, Measurement of Neutron-Production Double-Differential Cross Sections for Continuous-Energy-Neutron-Incidence on Fe and Pb by Liquid Organic Scintillator, Proceedings of International Conference on Nuclear Data for Science and Technology, Santa Fe, New Mexico, September 26 - October 1, 2004, AIP Conference Proceedings, 769, 1058-1061, 769, Part 1, 1058 - 1061, 2005.06. |
| 90. | N. Shigyo, S. Kunieda, T. Watanabe, S. Noda, K. Ishibashi, Y. Iwamoto, D. Satoh, T. Nakamura, R.C. Haight, Measurement of Continuous-Energy Neutron-Incident Neutron-Production Cross Section, Proceedings of International Conference on Nuclear Data for Science and Technology, Santa Fe, New Mexico, September 26 - October 1, 2004, AIP Conference Proceedings, 769, 924-927, 769, Part 1, 924 - 927, 2005.06. |
| 91. | Development of experimental technique for measurement of (n, xn) double-differential cross sections above 20 MeV The experimental technique for measurement of (n, xn) double differential cross sections above 20 MeV has been developed with continuous-energy neutrons up to 400 MeV. Neutrons were produced in the spallation reaction by the 800-MeV proton beam, which was incident on a thick, heavily shielded tungsten target at the WNR facility at Los Alamos National Laboratory. The energies of incident neutrons were determined by the time-of-flight method. Emitted neutrons were detected by the recoil proton method at 15°, 30° and 90°. A phoswich detector consisting of NaI(Tl) and NE102A plastic scintillators was used for detecting recoil protons. We obtained the neutron energy spectra by use of the unfolding code, FERDO. The response functions of the NaI(Tl) scintillator for protons were calculated by the calculation code of Particle and Heavy Ion Trasnport code System (PHITS). We compared the experimental cross section data with the calculations by the PHITS and QMD codes. © 2014 Atomic Energy Society of Japan.. |
| 92. | Y. Watanabe, T. Fukahori, K. Kosako, N. Shigyo, T. Murata, N. Yamano, T. Hino, K. Maki, H. Nakashima, N. Odano, S. Chiba, Nuclear Data Evaluations for JENDL High-Energy File, Proceedings of International Conference on Nuclear Data for Science and Technology, Santa Fe, New Mexico, September 26 - October 1, 2004, AIP Conference Proceedings, 769, 326-331, 769, Part 1, 326 - 331, 2005.06. |
| 93. | Measurement of 0.8 and 1.5 GeV Proton Induced Neutron Production Cross Sections at 0° Neutron-production double-differential cross sections at 0° were measured for proton-induced reactions on Fe and Pb targets at 0.8 and 1.5 GeV. The experiment was performed at the π2 beam line of the 12 GeV proton synchrotron in High Energy Accelerator Research Organization (KEK). Neutrons were measured by time-of-flight technique with two different flight path lengths, i.e. 3.5 and 5.0 m at 0.8 and 1.5 GeV, respectively. NE213 liquid organic scintillators 12.7 cm in diameter and 12.7 cm in thickness were set at 0° as neutron detector. For the improvement of the energy resolution, the scintillator was connected with three Hamamatsu H2431 photomultipliers 5.1 cm in diameter. The neutron detection efficiencies were obtained by the SCINFUL-QMD code. The experimental data were compared with the calculation results of the intranuclear-cascade-evaporation (INC/E) and the quantum-molecular-dynamics (QMD) models. © 2014 Atomic Energy Society of Japan.. |
| 94. | T. Matsuura, I. Ohta, N. Shigyo, K. Ishibashi, Study of epithermal neutron field using accelerator based neutron source, Proceedings of ICNCT-12, 364 - 367, 2006.10. |
| 95. | Tsuyoshi KAJIMOTO, Nobuhiro SHIGYO, Kenji ISHIBASHI, Satoshi KUNIEDA, Tokio FUKAHORI, Nuclear Data Evaluation of 206Pb for Proton- and Neutron-induced Reaction in Energy Region from 20 to 200 MeV, 2006 Symposium on Nuclear Data, SND2006-V.08, pp. 1 - 6, 2007.06. |
| 96. | Hiroyuki ARAKAWA, Tsuyoshi KAJIMOTO, Shusaku NODA, Takehito WATANABE, Nobuhiro SHIGYO, Kenji ISHIBASHI, Robert C. HAIGHT, Neutron-Production Double-Differential Cross Sections for 150 MeV Neutron-Incidence on Fe, 2006 Symposium on Nuclear Data, SND2006-V.05, pp. 1 - 9, 2007.06. |
| 97. | Takehito Watanabe, Hiroyuki Arakawa Tsuyoshi Kajimoto, Yosuke Iwamoto, Daiki Satoh, Satoshi Kunieda, Shusaku Noda, Nobuhiro Shigyo, Kenji Ishibashi, Takashi Nakamura, Robart C. Haight, Performance of a phoswich detector composed of an inner NaI(Tl) crystal and surrounding NE102A plastic scintillator for neutron spectrometry, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , Volume 587, Issue 1, Pages 20-28, 2008.03. |
| 98. | Kenji ISHIBASHI, Nobuhiro SHIGYO, Abul Kalam Md Lutfor RAHMAN, Kunio KATO Jun-ichi HORI, Ken NAKAJIMA, Study on Nondestructive Analysis and Neutron Behavior Using Photonuclear Reaction, KURRI Progress Report 2007, PR5-5, 2008.06. |
| 99. | Development of SCINFUL-QMD Code to Calculate the Neutron Detection Efficiencies for Liquid Organic Scintillator up to 3 GeV The Monte Carlo code, designeted SCINFUL-QMD, has been developed to calculate neutron detection efficiency up to 3 GeV for liquid organic scintillators such as NE-213. The existing Monte Carlo code, SCINFUL, is known to reproduce a response function and detection efficiency at incident neutron energies below 80 MeV. We incorporate the quantum molecular dynamics plus statistical decay model (QMD+SDM) into SCINFUL to extend the upper limit of incident neutron energy to 3 GeV. The results by SCINFUL-QMD are compared with experimental data and those of CECIL. The SCINFUL-QMD exhibits an increase in detection efficiency above 300 MeV. This tendency agrees with one of the experimental data. The increase is achived by taking charged pion production into account. © 2014 Atomic Energy Society of Japan.. |
| 100. | Measurement of neutron-production double-differential cross sections for intermediate energy pion incident reaction Neutron-production double-differential cross sections for 870-MeV π+ and π and 2.1-GeV π+ mesons incident on iron and lead targets were measured with NE213 liquid scintillators by time-of-flight technique. NE213 liquid scintillators 12.7cm in diameter and 12.7cm thick were placed in directions of 15°, 30°, 60°, 90°, 120° and 150°. The typical flight path length was 1.5 m. Neutron detection efficiencies were derived from the calculation results of SCINFUL and CECIL codes. The experimental results were compared with the cascade-evaporation calculation code NUCLEUS. The calculation results are higher typically by a factor of two than the experimental data at neutron energies below about 30MeV. NUCLEUS overestimates π+incident neutron-production cross sections in forward angles at neutron energies of 100 to 500 MeV. © 2001 Taylor and Francis Group, LLC.. |
| 101. | H Kitsuki, K Ishibashi, N Shigyo, S Kunieda, Parameterization of proton-induced neutron production double differential cross section up to 3 GeV in terms of moving source model, JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 10.1080/18811248.2001.9715000, 38, 1, 1-7, 2001.01, The parameterization of double differential cross sections is made for the neutron emission from proton-induced spallation reaction. The emitted neutron data for incident proton energies of 0.8 to 3 GeV are analyzed by the three-component moving source model based on the Maxwell-like energy distribution. In addition, a Gaussian-shaped term is utilized for reproducing the neutron spectrum originating from the quasi-elastic- and quasi-inelastic-like scattering. The systematics of parameters is obtained in the target mass number region from C to Pb.. |
| 102. | Study of neutron detection efficiencies for liquid organic scintillator up to 3 GeV The Monte Carlo code, designated SCINFUL-QMD, has been developed to calculate neutron detection efficiency up to 3 GeV for liquid organic scintillators such as NE-213. The existing Monte Carlo code, SCINFUL, is known to reproduce a response function and detection efficiency at incident neutron energies below 80 MeV. We incorporate the quantum molecular dynamics plus statistical decay model (QMD + SDM) into SCINFUL to extend the upper limit of incident neutron energy to 3 GeV. The tabulated cross sections adopted in SCINFUL are extrapolated up to 150 MeV, and the (QMD + SDM) method is used above 150 MeV. The results of SCINFUL-QMD are compared with the experimental data and those of CECIL, another computation code. At energies below 20 MeV, the results of SCINFUL-QMD agree with the experimental data. At higher energies, this code gives smaller values than those of the experimental data. SCINFUL-QMD exhibits an increase in detection efficiency above 300 MeV. This result is achieved by taking charged pion production into account.. |
| 103. | Improvement of energy resolution in time-of-flight method for high energy neutron measurement 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. Two types of detectors were tested. One was a liquid organic scintillator NE-213 5 inches (127 mm) in diameter and 127 mm thick connected with three Hamamatsu H2431 photomultipliers 2 inches (51 mm) in diameter. The other was NE-213 of the same size with a Hamamatsu R1250 127 mm in diameter. The experiment was made at π2 beam line of 12 GeV proton synchrotron in High Energy Accelerator Research Organization (KEK). The incident proton energy was 800 MeV, and the flight path was 5 m. Two neutron detectors were set at 0 and 5 degrees, respectively. The time resolutions for prompt gamma rays were 0.5 ns for NE-213 with three H2431s and 1.0 ns for NE-213 with R1250. The energy resolutions for 800 MeV neutrons were derived from these values were 70 and 100 MeV, respectively.. |
| 104. | Measurement of gamma-ray production double-differential cross sections for 1.5 GeV pi(+) meson incidence on iron. |
| 105. | Measurement of the photonuclear (γ, n) reaction cross section for 129I using bremsstrahlung photons Nuclear waste contains a significant amount of long-lived non-gamma-emitting nuclei such as 129I and 14C. A method of nondestructive detection for monitoring long-lived waste products is proposed as an application of the (γ, n) reaction. This method is useful for surveying long-lived "difficult-to-measure" nuclides, e.g., 129I. Iodine-128 produced from the reaction of 129I(γ,n)128I emits gamma rays that can easily be measured by a gamma-ray counter. We measured the inclusive photonuclear 129I(γ, n)128 I reaction cross section induced by bremsstrahlung photons. The photons were produced at a Ta target bombarded by 30-MeV electrons from a linear accelerator. The intensity of the slow neutrons was considered in the reactions of 127I(n,γ)128I and 129I(n,γ)130I. The activity of 128I was measured by a high-purity germanium spectrometer. The gamma-ray flux and the neutron flux were calculated using the EGS and MCNP codes, respectively. The average activation cross section of the 129I(γ, n) 128I reaction had a 12% deviation from the evaluated International Atomic Energy Agency photonuclear data.. |
| 106. | Hiroyuki Arakawa, Tsuyoshi Kajimoto, Shusaku Noda, Takehito Watanabe, Nobuhiro Shigyo, Kenji Ishibashi, Satoshi Kunieda, Robert C. Haight, Neutron-Production Double-Differential Cross Sections for 100 MeV Neutron-Incidence on In, JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 10.1080/00223131.2008.10875800, 116-119, 2008.06, Neutron-production double-differential cross sections were measured on Indium (In) for neutron-induced reactions of 90 - 110 MeV at the WNR facility of Los Alamos Neutron Science Center. Incident particles were neutrons produced by an 800 MeV proton-bombarded spallation target. Six NE213 liquid organic scintillators were used as neutron detectors. The results are parameterized by the moving source model and compared with calculated data.. |
| 107. | T. Watanabe, H. Arakawa, T. Kajimoto, Y. Iwamoto, D. Satoh, S. Kunieda, S. Noda, N. Shigyo, K. Ishibashi, T. Nakamura, R. C. Haight, Performance of a phoswich detector composed of an inner NaI(T1) crystal and surrounding NE102A plastic scintillator for neutron spectrometry, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 10.1016/j.nima.2008.01.001, 587, 1, 20-28, 2008.03, We have developed a phoswich detector for neutron spectrometry, which adopts a reversed configuration of slow- and fast-decay-time scintillators in its inner and surrounding outer regions, respectively, in the detection of recoil protons from a hydrogenous radiator. The phoswich detector consists of an inner slow, NaI(T1) scintillator, and an outer fast, plastic scintillator. This configuration allows us to discriminate protons of full kinetic-energy deposition only in the NaI(T1) scintillator and those not stopping in the inner scintillator. The response functions of the phoswich detector were measured for neutron energies ranging from 100 to 350 MeV. The experiment used the recoil-proton method and pulse-shape discrimination with the two-gate integration technique using a spallation neutron source at the WNR facility of the Los Alamos Neutron Science Center (LANSCE). The experimental results were consistent with calculations by the Particle and Heavy Ion Transport code System (PHITS). To evaluate the effectiveness of the phoswich configuration, full energy-deposition fraction was calculated. This fraction is defined as the ratio of the integration around the full-energy peak to that of the entire energy region. The calculation confirmed that the phoswich detector with a reversed configuration is useful for neutron measurements. (C) 2008 Elsevier B.V. All rights reserved.. |
| 108. | Measurement of continuous-energy neutron-incident neutron-production cross section Continuous energy neutron-incident neutron-production double differential cross sections were measured at the Weapons Neutron Research (WNR) facility of the Los Alamos Neutron Science Center. The energy of emitted neutrons was derived from the energy deposition in a detector. The incident-neutron energy was obtained by the time-of-flight method between the spallation target of WNR and the emitted neutron detector. Two types of detectors were adopted to measure the wide energy range of neutrons. The liquid organic scintillators covered up to 100 MeV. The recoil proton detectors that constitute the recoil proton radiator and phoswich type NaI (Tl) scintillators were used for neutrons above several tens of MeV. Iron and lead were used as sample materials. The experimental data were compared with the evaluated nuclear data, the results of GNASH, JQMD, and PHITS codes. © 2005 American Institute of Physics.. |
| 109. | Measurement of neutron-production double-differential cross sections for continuous-energy-neutron-incidence on Fe and Pb by liquid organic scintillator The neutron-production double-differential cross sections for the neutron-induced reaction were measured on iron and lead samples up to 100 MeV. Neutrons produced by a 800 MeV proton-bombarded spallation target were used as incident particles. The energies of incident neutrons were determined by their flight times on the path between the neutron source and the detectors. A fission ionization detector was utilized to determine the incident-neutron flux. NE213 liquid organic scintillators were employed to detect outgoing neutrons which were emitted from the sample. As a part of this experiment, the response functions of NE213 detectors for neutrons were also measured by using the spallation neutrons. The energy spectra for outgoing neutrons were derived from their deposition-energy spectra and the measured response functions of the detectors with unfolding technique. The results were presented at incident energies around 100 MeV, and were compared with GNASH calculations. © 2005 American Institute of Physics.. |
| 110. | Nuclear data evaluations for JENDL high-energy file An overview is presented of recent nuclear data evaluations performed for the JENDL high-energy (JENDL-HE) file, in which neutron and proton cross sections for energies up to 3 GeV are included for the whole 132 nuclides. The current version of the JENDL-HE file consists of neutron total cross sections, nucleon elastic scattering cross sections and angular distributions, nonelastic cross sections, production cross sections and double-differential cross sections of secondary light particles (n, p, d, t, 3He, α, and π) and gamma-rays, isotope production cross sections, and fission cross sections in the ENDF6 format. The present evaluations are performed on the basis of experimental data and theoretical model calculations. For the cross section calculations, we have constructed a hybrid calculation code system with some available nuclear model codes and systematics-based codes, such as ECIS96, OPTMAN, GNASH, JQMD, JAM, TOTELA, FISCAL, and so on. The evaluated cross sections are compared with available experimental data and the other evaluations. Future plans of our JENDL-HE project are discussed along with prospective needs for high-energy cross section data. © 2005 American Institute of Physics.. |
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