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Yamamoto, Kazami; Nakano, Hideto; Matsumoto, Tetsuro*
Proceedings of 21st Annual Meeting of Particle Accelerator Society of Japan (Internet), p.741 - 745, 2024/10
To accumulate a high-intensity beam in the Rapid Cycling Synchrotron (RCS), the H
beams from the linac converted into protons and injected into the RCS. In this process, a certain amount of the beam is not converted, and it leads to the injection dump. Since the secondary particles are constantly produced inside the dump due to this waste beam, we have studied if those secondary particles can be used as an irradiation test. In this report, we compare the results of calculations using PHITS/DCHAIN codes and measurements using a germanium-semiconductor detector after activating a bismuth-209 sample.
Shibata, Takanori*; Shinto, Katsuhiro; Nakano, Haruhisa*; Hoshino, Kazuo*; Miyamoto, Kenji*; Okoshi, Kiyonori; Nammo, Kesao*; Ikegami, Kiyoshi*; Kawai, Isao*; Oguri, Hidetomo; et al.
Journal of Physics; Conference Series, 2743, p.012007_1 - 012007_5, 2024/05
Times Cited Count：0 Percentile：0.00(Physics, Particles & Fields)Oscillation of the negative hydrogen ion (H
) beam phase space in Radio Frequency (RF) ion source is investigated by a simple 3D Particle-In-Cell (PIC) model which takes into account the transport processes of electron, proton and H in the extraction region. The calculation domain is in vicinity of the single beam aperture in J-PARC ion source configuration. In order to understand relation between the plasma density oscillation and the extracted H beam characteristics, the input electron and proton fluxes from the driver region are varied parametrically with the 1st and the 2nd harmonics of the J-PARC RF frequency (2 or 4 MHz). The numerical results give an idea to the main physical processes between the oscillations of the plasma parameters and the extracted H ion trajectories in the different RF phases. Countermeasures to reduce the oscillation mechanisms are also discussed in the presentation.
Am neutron capture cross section measurement using the NaI(Tl) spectrometer of the ANNRI beamline of J-PARCRovira Leveroni, G.; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke; Iwamoto, Osamu; Iwamoto, Nobuyuki; Katabuchi, Tatsuya*; Kodama, Yu*; Nakano, Hideto*; Sato, Yaoki*
Journal of Nuclear Science and Technology, 61(4), p.459 - 477, 2024/04
Times Cited Count：1 Percentile：23.64(Nuclear Science & Technology)Nakano, Hideto; Fuwa, Yasuhiro; Shinozaki, Shinichi; Mizobata, Satoshi*
Proceedings of 20th Annual Meeting of Particle Accelerator Society of Japan (Internet), p.577 - 578, 2023/11
In the J-PARC linac, klystrons are used as RF source. To improve the stability of RF power supply, the replacement of klystrons with semiconductor amplifiers is under consideration. Since the output of a semiconductor amplifier is relatively small, klystrons were installed in high power sections. Progresses of semiconductor production technology have allowed to manufacture semiconductor amplifiers that are expected be practical use. In the J-PARC linac, the installation in a debuncher 2 cavity with relatively small output power is planed. Characteristics test of a prototype semiconductor amplifier were conducted before full scale installation.
Pd using ANNRI at MLF/J-PARCNakano, Hideto*; Katabuchi, Tatsuya*; Terada, Kazushi*; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke; Rovira Leveroni, G.; Kodama, Yu*
EPJ Web of Conferences, 284, p.01032_1 - 01032_3, 2023/05
Times Cited Count：0 Percentile：0.00(Nuclear Science & Technology)Kodama, Yu*; Katabuchi, Tatsuya*; Rovira Leveroni, G.; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke; Nakano, Hideto*; Sato, Yaoki*; Hori, Junichi*; Shibahara, Yuji*; et al.
EPJ Web of Conferences, 284, p.01024_1 - 01024_3, 2023/05
Times Cited Count：0 Percentile：0.00(Nuclear Science & Technology)Rovira Leveroni, G.; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke; Iwamoto, Osamu; Iwamoto, Nobuyuki; Katabuchi, Tatsuya*; Kodama, Yu*; Nakano, Hideto*; Hori, Junichi*; et al.
EPJ Web of Conferences, 284, p.06007_1 - 06007_4, 2023/05
Times Cited Count：0 Percentile：0.00(Nuclear Science & Technology)Am neutron capture cross section in the keV region using Si and Fe-filtered neutron beamsRovira Leveroni, G.; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke; Iwamoto, Osamu; Iwamoto, Nobuyuki; Katabuchi, Tatsuya*; Kodama, Yu*; Nakano, Hideto*
Journal of Nuclear Science and Technology, 60(5), p.489 - 499, 2023/05
Times Cited Count：3 Percentile：41.50(Nuclear Science & Technology)Katabuchi, Tatsuya*; Iwamoto, Osamu; Hori, Junichi*; Kimura, Atsushi; Iwamoto, Nobuyuki; Nakamura, Shoji; Rovira Leveroni, G.; Endo, Shunsuke; Shibahara, Yuji*; Terada, Kazushi*; et al.
EPJ Web of Conferences, 281, p.00014_1 - 00014_4, 2023/03
Nakano, Hideto*; Katabuchi, Tatsuya*; Rovira Leveroni, G.; Kodama, Yu*; Terada, Kazushi*; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke
Journal of Nuclear Science and Technology, 59(12), p.1499 - 1506, 2022/12
Times Cited Count：2 Percentile：28.39(Nuclear Science & Technology)Am neutron capture cross section measurement and resonance analysisRovira Leveroni, G.; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke; Iwamoto, Osamu; Iwamoto, Nobuyuki; Katabuchi, Tatsuya*; Kodama, Yu*; Nakano, Hideto*; Sato, Yaoki*
JAEA-Conf 2022-001, p.91 - 96, 2022/11
Au with a Cr-filtered neutron beam at the ANNRI beamline of MLF/J-PARCRovira Leveroni, G.; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke; Iwamoto, Osamu; Iwamoto, Nobuyuki; Katabuchi, Tatsuya*; Kodama, Yu*; Nakano, Hideto*; Sato, Yaoki*; et al.
Journal of Nuclear Science and Technology, 59(5), p.647 - 655, 2022/05
Times Cited Count：1 Percentile：9.64(Nuclear Science & Technology)Rovira Leveroni, G.; Iwamoto, Osamu; Kimura, Atsushi; Nakamura, Shoji; Iwamoto, Nobuyuki; Endo, Shunsuke; Katabuchi, Tatsuya*; Terada, Kazushi*; Kodama, Yu*; Nakano, Hideto*; et al.
JAEA-Conf 2021-001, p.156 - 161, 2022/03
Nakano, Hideto*; Katabuchi, Tatsuya*; Rovira Leveroni, G.*; Kodama, Yu*; Terada, Kazushi*; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke
JAEA-Conf 2021-001, p.166 - 170, 2022/03
Kodama, Yu*; Katabuchi, Tatsuya*; Rovira Leveroni, G.; Nakano, Hideto*; Terada, Kazushi*; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke
JAEA-Conf 2021-001, p.162 - 165, 2022/03
NpRovira Leveroni, G.; Katabuchi, Tatsuya*; Tosaka, Kenichi*; Matsuura, Shota*; Kodama, Yu*; Nakano, Hideto*; Iwamoto, Osamu; Kimura, Atsushi; Nakamura, Shoji; Iwamoto, Nobuyuki
Journal of Nuclear Science and Technology, 59(1), p.110 - 122, 2022/01
Times Cited Count：5 Percentile：48.19(Nuclear Science & Technology)
Am around 23.5 keVKodama, Yu*; Katabuchi, Tatsuya*; Rovira Leveroni, G.; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke; Iwamoto, Nobuyuki; Iwamoto, Osamu; Hori, Junichi*; Shibahara, Yuji*; et al.
Journal of Nuclear Science and Technology, 58(11), p.1159 - 1164, 2021/11
Times Cited Count：4 Percentile：39.96(Nuclear Science & Technology)Rovira Leveroni, G.; Kimura, Atsushi; Nakamura, Shoji; Endo, Shunsuke; Iwamoto, Osamu; Iwamoto, Nobuyuki; Katabuchi, Tatsuya*; Terada, Kazushi*; Kodama, Yu*; Nakano, Hideto*; et al.
Nuclear Instruments and Methods in Physics Research A, 1003, p.165318_1 - 165318_10, 2021/07
Times Cited Count：5 Percentile：51.13(Instruments & Instrumentation)Katabuchi, Tatsuya*; Hori, Junichi*; Iwamoto, Nobuyuki; Iwamoto, Osamu; Kimura, Atsushi; Nakamura, Shoji; Shibahara, Yuji*; Terada, Kazushi*; Tosaka, Kenichi*; Endo, Shunsuke; et al.
JAEA-Conf 2020-001, p.5 - 9, 2020/12
Nakano, Takafumi; Sato, Fuminori; Shirozu, Hidetomo; Nakanishi, Ryuji; Fukuda, Kazuhito; Tachibana, Ikuya
Nihon Genshiryoku Gakkai-Shi ATOMO
, 57(1), p.14 - 20, 2015/01
no abstracts in English
