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3. Muon Nuclear Data

Author

Niikura, Megumi, Abe, Shinichiro, Kawase, Shoichiro, Matsuzaki, Teiichiro, Minato, Futoshi, Mizuno, Rurie, Watanabe, Yukinobu, and Yamaguchi, Yuji

Subjects
Nuclear Experiment
Abstract

We plan to develop a new nuclear database for muon-induced nuclear reactions (muon nuclear data). The database will consist of (1) energies and intensities of the muonic X rays, (2) lifetimes of the muonic atom, (3) production branching ratio of the residual nuclei by muon capture, (4) emission probabilities of the particles after muon capture, and (5) energy spectra of the emitted particles after muon capture. In this paper, we review the present status and current investigations for the muon nuclear data., Comment: Proceedings for Joint Symposium on Nuclear Data and PHITS in 2023, in print (JAEA-Conf series)

Published
2024

4. Effect of large-angle incidence on particle identification performance for light-charged ($Z \le 2$) particles by pulse shape analysis with a pad-type nTD silicon detector

Author

Kawase, Shoichiro, Murota, Takuya, Fukuda, Hiroya, Oishi, Masaya, Kawata, Teppei, Kitafuji, Kentaro, Manabe, Seiya, Watanabe, Yukinobu, Nishibata, Hiroki, Go, Shintaro, Kai, Tamito, Nagata, Yuto, Muto, Taiga, Ishibashi, Yuichi, Niikura, Megumi, Suzuki, Daisuke, Matsuzaki, Teiichiro, Ishida, Katsuhiko, Mizuno, Rurie, and Kitamura, Noritaka

Subjects
Physics - Instrumentation and Detectors
Abstract

In recent years, particle discrimination methods based on digital waveform analysis techniques for neutron-transmutation-doped silicon (nTD-Si) detectors have become widely used for the identification of low-energy charged particles. Although the particle discrimination capability of this method has been well demonstrated for small incident angles, the particle discrimination performance may be affected by changes in the detector response when the detector is moved closer to the charged particle source and the incident position distribution and incident angle distribution to the detector become wide. In this study, we performed a beam test for particle discrimination in light-charged ($Z \le 2$) particles using the digital waveform analysis method with a pad-type nTD-Si detector and investigated the dependence of the performance of the particle discrimination on the incident position and incident angle. As the incident angle increased, a decrease in the maximum current was observed, which was sufficient to affect the performance of the particle discrimination. This decrease can be expressed as a function of the penetration depth of the charged particles into the detector, which varies for each nuclide., Comment: 8 pages, 13 figures

Published
2023
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5. Response of germanium detectors for high-energy $\gamma$-rays by $^{27}$Al(p, $\gamma$)$^{28}$Si at Ep=992 keV

Author

Mizuno, Rurie, Niikura, Megumi, Ikeda, Tokihiro, Matsuzaki, Teiichiro, Go, Shintaro, Saito, Takeshi Y., Michimasa, Shin'ichiro, and Sakurai, Hiroyoshi

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

The performance of germanium detectors for high-energy $\gamma$-rays was evaluated using a 992-keV resonance in the $^{27}$Al(p, $\gamma$)$^{27}$Si reaction. The measurement was conducted at the RIKEN tandem accelerator. The energy of the excited state from the resonance was evaluated as 12540.7(2) keV. Using newly evaluated excitation energy, an energy calibration function and the photo-peak efficiency of Ge detectors up to 10.8-MeV photon were deduced. The energy accuracy is achieved at 0.3 keV for the overall energy region. This reaction provides reliable energy and efficiency standards for high-energy $\gamma$ rays.

Published
2023

7. 225Ac production via 226Ra (μ−, nν) 225Fr reaction with 226Ra target.

Author

Matsuzaki, Teiichiro and Sakurai, Hiroyoshi

Subjects
MUONS, BRANCHING ratios, PRODUCTION methods, CANCER treatment
Abstract

Actinium-225 (225Ac) has attracted global attention due to its applications in cancer therapy. A new 225Ac production method is proposed by muon nuclear-capture reactions with negative muons (μ−) irradiating on a 226Ra target. The 225Fr is produced by 226Ra (μ−, nν) 225Fr reaction and decays to 225Ra. The 225Ra subsequently decays to 225Ac. The method produces no carrier-added 225Ac, and 213Bi from a 225Ac-213Bi generator. The production method by muon nuclear-capture reactions with the 226Ra target is described. The radioactivity of 225Ac and 213Bi are calculated assuming the reaction branching ratio of 226Ra (μ−, nν) 225Fr. [ABSTRACT FROM AUTHOR]

Published
2024
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8. 99Mo production via 99Tc (μ−, ν) 99Mo reaction with recycled 99Tc.

Author

Matsuzaki, Teiichiro and Sakurai, Hiroyoshi

Subjects
BRANCHING ratios, MUONS, NUCLEAR fuels, SPENT reactor fuels, PRODUCTION methods
Abstract

A new 99Mo production method is proposed through 99Tc (μ−, v) 99Mo muon nuclear-capture reaction with recycled 99Tc material. The 99Mo is a parent nucleus of 99mTc for imaging diagnostics. The 99Mo is produced in the 99Tc target, and the molybdate ion (MoO42−) is separated from the pertechnetate ion (99TcO4−). High 99Mo-specific activity is obtained, and no radioactive by-product is generated. The 99Tc material has an unlimited resource: it is a decay product of 99Mo and is contained in spent nuclear fuel. The 99Mo-specific activity and production activities of 99Mo and 99mTc are calculated assuming the reaction branching ratios. [ABSTRACT FROM AUTHOR]

Published
2024
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10. Effect of large-angle incidence on particle identification performance for light-charged (Z≤2) particles by pulse shape analysis with a pad-type nTD silicon detector

Author

Kawase, Shoichiro, primary, Murota, Takuya, additional, Fukuda, Hiroya, additional, Oishi, Masaya, additional, Kawata, Teppei, additional, Kitafuji, Kentaro, additional, Manabe, Seiya, additional, Watanabe, Yukinobu, additional, Nishibata, Hiroki, additional, Go, Shintaro, additional, Kai, Tamito, additional, Nagata, Yuto, additional, Muto, Taiga, additional, Ishibashi, Yuichi, additional, Niikura, Megumi, additional, Suzuki, Daisuke, additional, Matsuzaki, Teiichiro, additional, Ishida, Katsuhiko, additional, Mizuno, Rurie, additional, and Kitamura, Noritaka, additional

Published
2024
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11. Pressure-Induced Reentrant Oblique Antiferromagnetic Phase in Spin Dimer System TlCuCl_3

Author

Yamada, Fumiko, Ishii, Yasuyuki, Suzuki, Takao, Matsuzaki, Teiichiro, and Tanaka, Hidekazu

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

Magnetization measurements under a hydrostatic pressure of P = 1.4 GPa were performed on the coupled spin dimer system TlCuCl_3, which exhibits a pressure-induced quantum phase transition from a gapped singlet state to an antiferromagnetic state at P_c = 0.042 GPa. Antiferromagnetic ordering with ordered moments parallel to the ac plane was observed at T_N = 16.7 K at 1.4 GPa. The spin reorientation phase transition was observed at T_R ~ 9.2 K for zero magnetic field, at which the ordered moments start to incline towards the b axis. With increasing external field parallel to th b axis, a second-order phase transition from the oblique antiferromagnetic (OAF) phase to the spin-flop (SF) phase occurs below T_R. We argue that the OAF phase arises from the competition between the anisotropic energies of the conventional second order and the fourth order, that increases with increasing pressure. We discuss the OAF-SF transition within the framework of the mean field approximation., Comment: 7 pages, 7 figures

Published
2008
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13. Spallation reaction study for the long-lived fission products in nuclear waste: Cross section measurements for 137Cs, 90Sr and 107Pd using inverse kinematics method

Author

Wang, He, Otsu, Hideaki, Sakurai, Hiroyoshi, Ahn, DeukSoon, Chiga, Nobuyuki, Doornenbal, Pieter, Fukuda, Naoki, Isobe, Tadaaki, Kubo, Toshiyuki, Kubono, Shigeru, Lorusso, Giusseppe, Söderström, Pär-Anders, Suzuki, Hiroshi, Takeda, Hiroyuki, Watanabe, Yasushi, Yoshida, Koichi, Matsuzaki, Teiichiro, Shimizu, Yohei, Sumikama, Toshiyuki, Uesaka, Meiko, Kawase, Shoichiro, Nakano, Keita, Watanabe, Yukinobu, Araki, Shouhei, Kin, Tadahiro, Takeuchi, Satoshi, Togano, Yasuhiro, Nakamura, Takashi, Kondo, Yosuke, Ozaki, Tomoyuki, Saito, Atsumi, Tsubota, Junichi, Aikawa, Masayuki, Makinaga, Ayano, Ando, Takashi, Koyama, Shunpei, Momiyama, Satoru, Nagamine, Shunsuke, Niikura, Megumi, Saito, Takeshi, Taniuchi, Ryo, Wimmer, Kathrin, Kawakami, Shunsuke, Maeda, Yukie, Yamamoto, Tatsuya, Shiga, Yoshiaki, Matsushita, Masafumi, Michimasa, Shin’ichiro, and Shimoura, Susumu

Published
2017
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17. Spallation reaction study for long-lived fission products in nuclear waste

Author

Wang He, Otsu Hideaki, Sakurai Hiroyoshi, Ahn DeukSoon, Aikawa Masayuki, Ando Takashi, Araki Shouhei, Chen Sidong, Chiga Nobuyuki, Doornenbal Pieter, Fukuda Naoki, Isobe Tadaaki, Kawakami Shunsuke, Kawase Shoichiro, Kin Tadahiro, Kondo Yosuke, Koyama Shunpei, Kubono Shigeru, Maeda Yukie, Makinaga Ayano, Matsushita Masafumi, Matsuzaki Teiichiro, Michimasa Shin ichiro, Momiyama Satoru, Nagamine Shunsuke, Nakamura Takashi, Nakano Keita, Niikura Megumi, Ozaki Tomoyuki, Saito Atsumi, Saito Takeshi, Shiga Yoshiaki, Shikata Mizuki, Shimizu Yohei, Shimoura Susumu, Sumikama Toshiyuki, Söderstrom Pär-Anders, Suzuki Hiroshi, Takeda Hiroyuki, Takeuchi Satoshi, Taniuchi Ryo, Togano Yasuhiro, Tsubota Junichi, Uesaka Meiko, Watanabe Yasushi, Watanabe Yukinobu, Wimmer Kathrin, Yamamoto Tatsuya, and Yoshida Koichi

Subjects
Physics, QC1-999
Abstract

Spallation reaction for the long-lived fission product 107Pd has been studied for the purpose of nuclear waste transmutation. The isotopic-distribution cross sections on both proton and deuteron were obtained at 118 MeV/nucleon in inverse kinematics at the RIKEN Radioactive Isotope Beam Factory. A large cross-section difference was found between the proton and deuteron results for the light-mass products. The data were compared with the SPACS semi-empirical parameterization and the PHITS calculations including both the intranuclear cascade and evaporation processes. In addition, the potential of spallation reaction for transmutation of 107Pd is discussed.

Published
2020
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19. Identification of Hydrogen Trapping in Aluminum Alloys Via Muon Spin Relaxation Method and First-Principles Calculations

Author

Tsuru, Tomohito, primary, Nishimura, Katsuhiko, additional, Matsuda, Kenji, additional, Nunomura, Norio, additional, Namiki, Takahiro, additional, LEE, Shouwon, additional, Higemoto, Wataru, additional, Matsuzaki, Teiichiro, additional, Yamaguchi, Masatake, additional, Ebihara, Kenichi, additional, Shimizu, Kazuyuki, additional, and Toda, Hiroyuki, additional

Published
2022
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21. Birth of an intense pulsed muon source, J-PARC MUSE

Author

Miyake, Yasuhiro, Shimomura, Koichiro, Kawamura, Naritoshi, Strasser, Patrick, Makimura, Shunsuke, Koda, Akihiro, Fujimori, Hiroshi, Nakahara, Kazutaka, Kadono, Ryosuke, Kato, Mineo, Takeshita, Soshi, Nishiyama, Kusuo, Higemoto, Wataru, Ishida, Katsuhiko, Matsuzaki, Teiichiro, Matsuda, Yasuyuki, and Nagamine, Kanetada

Published
2009
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25. Cross sections for nuclide production in proton- and deuteron-induced reactions on 93Nb measured using the inverse kinematics method

Author

Nakano Keita, Watanabe Yukinobu, Kawase Shoichiro, Wang He, Otsu Hideaki, Sakurai Hiroyoshi, Takeuchi Satoshi, Togano Yasuhiro, Nakamura Takashi, Maeda Yukie, Ahn Deuk Soon, Aikawa Masayuki, Araki Shouhei, Chen Sidong, Chiga Nobuyuki, Doornenbal Pieter, Fukuda Naoki, Ichihara Takashi, Isobe Tadaaki, Kawakami Shunsuke, Kin Tadahiro, Kondo Yosuke, Koyama Shunpei, Kubo Toshiyuki, Kubono Shigeru, Kurokawa Meiko, Makinaga Ayano, Matsushita Masafumi, Matsuzaki Teiichiro, Michimasa Shin'ichiro, Momiyama Satoru, Nagamine Shunsuke, Niikura Megumi, Ozaki Tomoyuki, Saito Atsumi, Saito Takeshi, Shiga Yoshiaki, Shikata Mizuki, Shimizu Yohei, Shimoura Susumu, Sumikama Toshiyuki, Söderström Pär-Anders, Suzuki Hiroshi, Takeda Hiroyuki, Taniuchi Ryo, Tsubota Jun'ichi, Watanabe Yasushi, Wimmer Kathrin, Yamamoto Tatsuya, and Yoshida Koichi

Subjects
Physics, QC1-999
Abstract

Isotopic production cross sections were measured for proton- and deuteron-induced reactions on 93Nb by means of the inverse kinematics method at RIKEN Radioactive Isotope Beam Factory. The measured production cross sections of residual nuclei in the reaction 93Nb + p at 113 MeV/u were compared with previous data measured by the conventional activation method in the proton energy range between 46 and 249 MeV. The present inverse kinematics data of four reaction products (90Mo, 90Nb, 88Y, and 86Y) were in good agreement with the data of activation measurement. Also, the model calculations with PHITS describing the intra-nuclear cascade and evaporation processes generally well reproduced the measured isotopic production cross sections.

Published
2017
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26. Spallation reaction study for fission products in nuclear waste: Cross section measurements for 137Cs, 90Sr and 107Pd on proton and deuteron

Author

Wang He, Otsu Hideaki, Sakurai Hiroyoshi, Ahn DeukSoon, Aikawa Masayuki, Ando Takashi, Araki Shouhei, Chen Sidong, Chiga Nobuyuki, Doornenbal Pieter, Fukuda Naoki, Isobe Tadaaki, Kawakami Shunsuke, Kawase Shoichiro, Kin Tadahiro, Kondo Yosuke, Koyama Shupei, Kubono Shigeru, Maeda Yukie, Makinaga Ayano, Matsushita Masafumi, Matsuzaki Teiichiro, Michimasa Shinichiro, Momiyama Satoru, Nagamine Shunsuke, Nakamura Takashi, Nakano Keita, Niikura Megumi, Ozaki Tomoyuki, Saito Atsumi, Saito Takeshi, Shiga Yoshiaki, Shikata Mizuki, Shimizu Yohei, Shimoura Susumu, Sumikama Toshiyuki, Söderström Pär-Anders, Suzuki Hiroshi, Takeda Hiroyuki, Takeuchi Satoshi, Taniuchi Ryo, Togano Yasuhiro, Tsubota Junichi, Uesaka Meiko, Watanabe Yasushi, Watanabe Yukinobu, Wimmer Kathrin, Yamamoto Tatsuya, and Yoshida Koichi

Subjects
Physics, QC1-999
Abstract

Spallation reactions for the long-lived fission products 137Cs, 90Sr and 107Pd have been studied for the purpose of nuclear waste transmutation. The cross sections on the proton- and deuteron-induced spallation were obtained in inverse kinematics at the RIKEN Radioactive Isotope Beam Factory. Both the target and energy dependences of cross sections have been investigated systematically. and the cross-section differences between the proton and deuteron are found to be larger for lighter fragments. The experimental data are compared with the SPACS semi-empirical parameterization and the PHITS calculations including both the intra-nuclear cascade and evaporation processes.

Published
2017
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27. Cross section measurement of residues produced in proton- and deuteron-induced spallation reactions on 93Zr at 105 MeV/u using the inverse kinematics method

Author

Kawase Shoichiro, Watanabe Yukinobu, Wang He, Otsu Hideaki, Sakurai Hiroyoshi, Takeuchi Satoshi, Togano Yasuhiro, Nakamura Takashi, Maeda Yukie, Ahn Deuk Soon, Aikawa Masayuki, Araki Shouhei, Chen Sidong, Chiga Nobuyuki, Doornenbal Pieter, Fukuda Naoki, Ichihara Takashi, Isobe Tadaaki, Kawakami Shunsuke, Kin Tadahiro, Kondo Yosuke, Koyama Shunpei, Kubo Toshiyuki, Kubono Shigeru, Kurokawa Meiko, Makinaga Ayano, Matsushita Masafumi, Matsuzaki Teiichiro, Michimasa Shin'ichiro, Momiyama Satoru, Nagamine Shunsuke, Nakano Keita, Niikura Megumi, Ozaki Tomoyuki, Saito Atsumi, Saito Takeshi, Shiga Yoshiaki, Shikata Mizuki, Shimizu Yohei, Shimoura Susumu, Sumikama Toshiyuki, Söderström Pär-Anders, Suzuki Hiroshi, Takeda Hiroyuki, Taniuchi Ryo, Tsubota Jun'ichi, Watanabe Yasushi, Wimmer Kathrin, Yamamoto Tatsuya, and Yoshida Koichi

Subjects
Physics, QC1-999
Abstract

Isotopic production cross sections in the proton- and deuteron-induced spallation reactions on 93Zr at an energy of 105 MeV/u were measured in inverse kinematics conditions for the development of realistic nuclear transmutation processes for long-lived fission products (LLFPs) with neutron and light-ion beams. The experimental results were compared to the PHITS calculations describing the intra-nuclear cascade and evaporation processes. Although an overall agreement was obtained, a large overestimation of the production cross sections for the removal of a few nucleons was seen. A clear shell effect associated with the neutron magic number N = 50 was observed in the measured isotopic production yields of Zr and Y isotopes, which can be reproduced reasonably by the PHITS calculation.

Published
2017
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32. Isotope production in proton-, deuteron-, and carbon-induced reactions on Nb 93 at 113 MeV/nucleon

Author

Nakano, Keita, Watanabe, Yukinobu, Kawase, Shoichiro, Wang, He, Otsu, Hideaki, Sakurai, Hiroyoshi, Takeuchi, Satoshi, Togano, Yasuhiro, Nakamura, Takashi, Maeda, Yukie, Ahn, Deuk Soon, Aikawa, Masayuki, Araki, Shouhei, Chen, Sidong, Chiga, Nobuyuki, Doornenbal, Pieter, Fukuda, Naoki, Ichihara, Takashi, Isobe, Tadaaki, Kawakami, Shunsuke, Kin, Tadahiro, Kondo, Yosuke, Koyama, Shunpei, Kubo, Toshiyuki, Kubono, Shigeru, Uesaka, Meiko, Makinaga, Ayano, Matsushita, Masafumi, Matsuzaki, Teiichiro, Michimasa, Shin'ichiro, Momiyama, Satoru, Nagamine, Shunsuke, Niikura, Megumi, Ozaki, Tomoyuki, Saito, Atsumi, Saito, Takeshi, Shiga, Yoshiaki, Shikata, Mizuki, Shimizu, Yohei, Shimoura, Susumu, Sumikama, Toshiyuki, Söderström, Pär Anders, Suzuki, Hiroshi, Takeda, Hiroyuki, Taniuchi, Ryo, Tsubota, Jun'ichi, Watanabe, Yasushi, Wimmer, Kathrin, Yamamoto, Tatsuya, and Yoshida, Koichi

Abstract

Isotope-production cross sections for p-, d-, and C-induced spallation reactions on Nb93 at 113 MeV/nucleon were measured using the inverse-kinematics method employing secondary targets of CH2, CD2, and C. The measured cross sections for Mo90, Nb90, Y86,88 produced by p-induced reactions were found to be consistent with those measured by the conventional activation method. We performed benchmark tests of the reaction models INCL-4.6, JQMD, and JQMD-2.0 implemented in the Particle and Heavy Ion Transport code System (PHITS) and of the nuclear data libraries JENDL-4.0/HE, TENDL-2017, and ENDF/B-VIII.0. The model calculations also showed generally good agreement with the measured isotope-production cross sections for p-, d-, and C-induced reactions. It also turns out that, among the three nuclear data libraries, JENDL-4.0/HE provides the best agreement with the measured data for the p-induced reactions. We compared the present Nb93 data with the Zr93 data, that were measured previously by the same inverse kinematics method (Kawase et al., Prog. Theor. Exp. Phys. 2017, 093D03 (2017)2050-391110.1093/ptep/ptx110), with particular attention to the effect of neutron-shell closure on isotope production in p- and d-induced spallation reactions. The isotopic distributions of the measured production cross sections in the Zr93 data showed noticeable jumps at neutron number N=50 in the isotopic chains of ΔZ=0 and -1, whereas no such jump appeared in isotopic chain of ΔZ=0 in the Nb93 data. From INCL-4.6 + GEM calculations, we found that the jump formed in the evaporation process is smeared out by the intranuclear cascade component in Nb91 produced by the Nb93(p,p2n) and (d,d2n) reactions on Nb93. Moreover, for Nb93, the distribution of the element-production cross sections as a function of the change in proton number ΔZ is shifted to smaller ΔZ than for Zr93, because the excited Nb prefragments generated by the cascade process are more likely to emit protons than the excited Zr prefragments, due to the smaller proton-separation energies of the Nb isotopes.

Published
2019

34. Coulomb breakup reactions of 93,94 Zr in inverse kinematics

Author

Takeuchi, Satoshi, Nakamura, Takashi, Shikata, Mizuki, Togano, Yasuhiro, Kondo, Yosuke, Tsubota, Junichi, Ozaki, Tomoyuki, Saito, Atsumi, Otsu, Hideaki, Wang, He, Sakurai, Hiroyoshi, Watanabe, Yukinobu, Kawase, Shoichiro, Ahn, Deuk Soon, Aikawa, Masayuki, Ando, Takashi, Araki, Shohei, Chen, Sidong, Chiga, Nobuyuki, Doornenbal, Pieter, Ebata, Shuichiro, Fukuda, Naoki, Isobe, Tadaaki, Kawakami, Shunsuke, Kin, Tadahiro, Koyama, Shunpei, Kubono, Shigeru, Maeda, Yukie, Makinaga, Ayano, Matsushita, Masafumi, Matsuzaki, Teiichiro, Michimasa, Shin'ichiro, Momiyama, Satoru, Nagamine, Shunsuke, Nakano, Keita, Niikura, Megumi, Ogata, Kazuyuki, Saito, Takeshi, Shiga, Yoshiaki, Shimizu, Yohei, Shimoura, Susumu, Sumikama, Toshiyuki, Söderstrom, Pär Anders, Suzuki, Hiroshi, Takeda, Hiroyuki, Taniuchi, Ryo, Uesaka, Meiko, Watanabe, Yasushi, Wimmer, Kathrin, Yamamoto, Tatsuya, and Yoshida, Koichi

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

Coulomb breakup reactions of 93,94 Zr have been studied in inverse kinematics at incident beam energies of about 200 MeV/nucleon in order to evaluate neutron capture reaction methods. The 93 Zr(n,γ) 94 Zr reaction is particularly important as a candidate nuclear transmutation reaction for the long-lived fission product 93 Zr in nuclear power plants. One- and two-neutron removal cross sections on Pb and C targets were measured to deduce the inclusive Coulomb breakup cross sections, 375 ± 29 (stat.) ± 30 (syst.) and 403 ± 26 (stat.) ± 31 (syst.) mb for 93 Zr and 94 Zr, respectively. The results are compared with estimates using the standard Lorentzian model and microscopic calculations. The results reveal a possible contribution of the pygmy dipole resonance or giant quadrupole resonance in the Coulomb breakup reactions of 94 Zr.

Published
2019

36. Isotope production in proton-, deuteron-, and carbon-induced reactions on Nb93 at 113 MeV/nucleon

Author

Nakano, Keita, primary, Watanabe, Yukinobu, additional, Kawase, Shoichiro, additional, Wang, He, additional, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Takeuchi, Satoshi, additional, Togano, Yasuhiro, additional, Nakamura, Takashi, additional, Maeda, Yukie, additional, Ahn, Deuk Soon, additional, Aikawa, Masayuki, additional, Araki, Shouhei, additional, Chen, Sidong, additional, Chiga, Nobuyuki, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Ichihara, Takashi, additional, Isobe, Tadaaki, additional, Kawakami, Shunsuke, additional, Kin, Tadahiro, additional, Kondo, Yosuke, additional, Koyama, Shunpei, additional, Kubo, Toshiyuki, additional, Kubono, Shigeru, additional, Uesaka, Meiko, additional, Makinaga, Ayano, additional, Matsushita, Masafumi, additional, Matsuzaki, Teiichiro, additional, Michimasa, Shin'ichiro, additional, Momiyama, Satoru, additional, Nagamine, Shunsuke, additional, Niikura, Megumi, additional, Ozaki, Tomoyuki, additional, Saito, Atsumi, additional, Saito, Takeshi, additional, Shiga, Yoshiaki, additional, Shikata, Mizuki, additional, Shimizu, Yohei, additional, Shimoura, Susumu, additional, Sumikama, Toshiyuki, additional, Söderström, Pär-Anders, additional, Suzuki, Hiroshi, additional, Takeda, Hiroyuki, additional, Taniuchi, Ryo, additional, Tsubota, Jun'ichi, additional, Watanabe, Yasushi, additional, Wimmer, Kathrin, additional, Yamamoto, Tatsuya, additional, and Yoshida, Koichi, additional

Published
2019
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37. Coulomb breakup reactions of 93,94Zr in inverse kinematics

Author

Takeuchi, Satoshi, primary, Nakamura, Takashi, additional, Shikata, Mizuki, additional, Togano, Yasuhiro, additional, Kondo, Yosuke, additional, Tsubota, Junichi, additional, Ozaki, Tomoyuki, additional, Saito, Atsumi, additional, Otsu, Hideaki, additional, Wang, He, additional, Sakurai, Hiroyoshi, additional, Watanabe, Yukinobu, additional, Kawase, Shoichiro, additional, Ahn, DeukSoon, additional, Aikawa, Masayuki, additional, Ando, Takashi, additional, Araki, Shohei, additional, Chen, Sidong, additional, Chiga, Nobuyuki, additional, Doornenbal, Pieter, additional, Ebata, Shuichiro, additional, Fukuda, Naoki, additional, Isobe, Tadaaki, additional, Kawakami, Shunsuke, additional, Kin, Tadahiro, additional, Koyama, Shunpei, additional, Kubono, Shigeru, additional, Maeda, Yukie, additional, Makinaga, Ayano, additional, Matsushita, Masafumi, additional, Matsuzaki, Teiichiro, additional, Michimasa, Shin’ichiro, additional, Momiyama, Satoru, additional, Nagamine, Shunsuke, additional, Nakano, Keita, additional, Niikura, Megumi, additional, Ogata, Kazuyuki, additional, Saito, Takeshi, additional, Shiga, Yoshiaki, additional, Shimizu, Yohei, additional, Shimoura, Susumu, additional, Sumikama, Toshiyuki, additional, Söderstrom, Pär-Anders, additional, Suzuki, Hiroshi, additional, Takeda, Hiroyuki, additional, Taniuchi, Ryo, additional, Uesaka, Meiko, additional, Watanabe, Yasushi, additional, Wimmer, Kathrin, additional, Yamamoto, Tatsuya, additional, and Yoshida, Koichi, additional

Published
2019
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38. Muon Spin Relaxation of an Al–3.4%Zn–1.9%Mg alloy

Author

Nishimura, Katsuhiko, primary, Matsuda, Kenji, additional, Nunomura, Norio, additional, Namiki, Takahiro, additional, Lee, Seungwon, additional, Hatakeyama, Daichi, additional, Higemoto, Wataru, additional, Miyake, Yasuhiro, additional, Matsuzaki, Teiichiro, additional, Itoh, Goroh, additional, Ihara, Kentaro, additional, Toda, Hiroyuki, additional, and Yamaguchi, Masatake, additional

Published
2018
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39. Muon Beamline Commissioning and Feasibility Study for μSR at a New DC Muon Beamline, MuSIC-RCNP, Osaka University

Author

Tomono, Dai, primary, Fukuda, Mitsuhiro, additional, Hatanaka, Kichiji, additional, Higemoto, Wataru, additional, Kawashima, Yoshitaka, additional, Kojima, Kenji M., additional, Kuno, Yoshitaka, additional, Matsuda, Yugo, additional, Matsuzaki, Teiichiro, additional, Miyake, Yasuhiro, additional, Miyamoto, Koichiro, additional, Morita, Yasuyuki, additional, Motoishi, Takahiro, additional, Nakazawa, Yu, additional, Ninomiya, Kazuhiko, additional, Nishikawa, Ryo, additional, Ohta, Saki, additional, Sato, Akira, additional, Shimomura, Koichiro, additional, Takahisa, Keiji, additional, Weichao, Yao, additional, and Wong, Ming L., additional

Published
2018
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40. μSR Study on Hydrogen Behavior in Palladium

Author

Mihara, Mototsugu, primary, Araki, Hideki, additional, Mizuno, Masataka, additional, Shimomura, Koichiro, additional, Higemoto, Wataru, additional, Sugita, Kazuki, additional, Atsushi, Kobayashi, additional, Kondo, Masashi, additional, Tanaka, Yuki, additional, Matsuzaki, Teiichiro, additional, Kadono, Ryosuke, additional, Sato, Wataru, additional, Nakano, Takehito, additional, and Fukuda, Takashi, additional

Published
2018
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41. Time Dependent Magnetization of an Al-1.6%Mg₂Si Alloy

Author

Nishimura, Katsuhiko, Matsuda, Kenji, Namiki, Takahiro, Matsuzaki, Teiichiro, and Hutchison, Wayne D.

Subjects
time dependent magnetization, aluminum-magnesium-silicon alloy, clustering reaction, vacancies
Abstract

New observations of time dependent magnetization of an Al-1.6%Mg2Si alloy over a range of constant temperatures between 250 K and 310 K are presented. The post solution heat treatment time variations of magnetization at 300 and 310 K increased with time out to about 1300 minutes, whereas those at 280 and 290 K showed minima around 150 and 50 minutes, respectively. The magnetization at 250 K initially decreased slightly and then became constant with time. The observed time variations of magnetization are explained in terms of clustering reactions of the Mg, Si and vacancies.

Published
2015

43. Spallation reaction study for the long-lived fission products in nuclear waste: Cross section measurements for 137 Cs, 90 Sr and 107 Pd using inverse kinematics method

Author

Wang, He, primary, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Ahn, DeukSoon, additional, Chiga, Nobuyuki, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Isobe, Tadaaki, additional, Kubo, Toshiyuki, additional, Kubono, Shigeru, additional, Lorusso, Giusseppe, additional, Söderström, Pär-Anders, additional, Suzuki, Hiroshi, additional, Takeda, Hiroyuki, additional, Watanabe, Yasushi, additional, Yoshida, Koichi, additional, Matsuzaki, Teiichiro, additional, Shimizu, Yohei, additional, Sumikama, Toshiyuki, additional, Uesaka, Meiko, additional, Kawase, Shoichiro, additional, Nakano, Keita, additional, Watanabe, Yukinobu, additional, Araki, Shouhei, additional, Kin, Tadahiro, additional, Takeuchi, Satoshi, additional, Togano, Yasuhiro, additional, Nakamura, Takashi, additional, Kondo, Yosuke, additional, Ozaki, Tomoyuki, additional, Saito, Atsumi, additional, Tsubota, Junichi, additional, Aikawa, Masayuki, additional, Makinaga, Ayano, additional, Ando, Takashi, additional, Koyama, Shunpei, additional, Momiyama, Satoru, additional, Nagamine, Shunsuke, additional, Niikura, Megumi, additional, Saito, Takeshi, additional, Taniuchi, Ryo, additional, Wimmer, Kathrin, additional, Kawakami, Shunsuke, additional, Maeda, Yukie, additional, Yamamoto, Tatsuya, additional, Shiga, Yoshiaki, additional, Matsushita, Masafumi, additional, Michimasa, Shin’ichiro, additional, and Shimoura, Susumu, additional

Published
2017
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44. Study of proton- and deuteron-induced spallation reactions on the long-lived fission product 93Zr at 105 MeV/nucleon in inverse kinematics

Author

Kawase, Shoichiro, primary, Nakano, Keita, additional, Watanabe, Yukinobu, additional, Wang, He, additional, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Ahn, Deuk Soon, additional, Aikawa, Masayuki, additional, Ando, Takashi, additional, Araki, Shouhei, additional, Chen, Sidong, additional, Chiga, Nobuyuki, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Isobe, Tadaaki, additional, Kawakami, Shunsuke, additional, Kin, Tadahiro, additional, Kondo, Yosuke, additional, Koyama, Shunpei, additional, Kubono, Shigeru, additional, Maeda, Yukie, additional, Makinaga, Ayano, additional, Matsushita, Masafumi, additional, Matsuzaki, Teiichiro, additional, Michimasa, Shin'ichiro, additional, Momiyama, Satoru, additional, Nagamine, Shunsuke, additional, Nakamura, Takashi, additional, Niikura, Megumi, additional, Ozaki, Tomoyuki, additional, Saito, Atsumi, additional, Saito, Takeshi, additional, Shiga, Yoshiaki, additional, Shikata, Mizuki, additional, Shimizu, Yohei, additional, Shimoura, Susumu, additional, Sumikama, Toshiyuki, additional, Söderström, Pär-Anders, additional, Suzuki, Hiroshi, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Taniuchi, Ryo, additional, Togano, Yasuhiro, additional, Tsubota, Jun'ichi, additional, Uesaka, Meiko, additional, Watanabe, Yasushi, additional, Wimmer, Kathrin, additional, Yamamoto, Tatsuya, additional, and Yoshida, Koichi, additional

Published
2017
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45. Spallation reaction study for the long-lived fission product 107Pd

Author

Wang, He, primary, Otsu, Hideaki, additional, Sakurai, Hiroyoshi, additional, Ahn, DeukSoon, additional, Aikawa, Masayuki, additional, Ando, Takashi, additional, Araki, Shouhei, additional, Chen, Sidong, additional, Nobuyuki, Chiga, additional, Doornenbal, Pieter, additional, Fukuda, Naoki, additional, Isobe, Tadaaki, additional, Kawakami, Shunsuke, additional, Kawase, Shoichiro, additional, Kin, Tadahiro, additional, Kondo, Yosuke, additional, Koyama, Shunpei, additional, Kubono, Shigeru, additional, Maeda, Yukie, additional, Makinaga, Ayano, additional, Matsushita, Masafumi, additional, Matsuzaki, Teiichiro, additional, Michimasa, Shin'ichiro, additional, Momiyama, Satoru, additional, Nagamine, Shunsuke, additional, Nakamura, Takashi, additional, Nakano, Keita, additional, Niikura, Megumi, additional, Ozaki, Tomoyuki, additional, Saito, Atsumi, additional, Saito, Takeshi, additional, Shiga, Yoshiaki, additional, Shikata, Mizuki, additional, Shimizu, Yohei, additional, Shimoura, Susumu, additional, Sumikama, Toshiyuki, additional, Söderström, Pär-Anders, additional, Suzuki, Hiroshi, additional, Takeda, Hiroyuki, additional, Takeuchi, Satoshi, additional, Taniuchi, Ryo, additional, Togano, Yasuhiro, additional, Tsubota, Junichi, additional, Uesaka, Meiko, additional, Watanabe, Yasushi, additional, Watanabe, Yukinobu, additional, Wimmer, Kathrin, additional, Yamamoto, Tatsuya, additional, and Yoshida, Koichi, additional

Published
2017
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46. Time Dependence of Muon Spin Relaxation Rate in Aluminum and Al-1.6%Mg2Si Alloy

Author

Nishimura, Katsuhiko, Matsuda, Kenji, Lee, Seung Won, Watanabe, Isao, Jawad, Majed Abdel, and Matsuzaki, Teiichiro

Abstract

Zero-field muon spin relaxation experiments were carried out for Al-1.6%Mg2Si and a pure aluminum in isothermal conditions between 260 and 300 K. Observed relaxation spectra were analyzed to extract the dipole width (D) values which were found to decrease with time after solution heat treatment and quenching. Time variations of D appeared to take place two stages in both samples. The stage transition times (tII) deduced for Al-1.6%Mg2Si were comparable to those for the Si-rich clustering stage reported for Al-Mg-Si alloys. The estimated activation energy of Si-rich clustering was 0.62 (±0.04) eV. The stage transition times (tM) for the pure aluminum were 255, 110 and 82 min after quenching at the measuring temperatures of 260, 280 and 300 K, respectively. An Arrhenius plot of logarithmic tM against reciprocal temperature resulted in an activation energy of 0.19 (±0.06) eV.

Published
2020
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48. Effect of copper on fine precipitates at the early stage of aging in Al–Mg–X (X=Si, Ge, Zn) alloys

Author

Matsuda, Kenji, primary, Kawai, Akihiro, additional, Watanabe, Katsumi, additional, Lee, Seungwon, additional, Marioara, Calin D., additional, Wenner, Sigurd, additional, Nishimura, Katsuhiko, additional, Matsuzaki, Teiichiro, additional, Nunomura, Norio, additional, Sato, Tatsuo, additional, Holmestad, Randi, additional, and Ikeno, Susumu, additional

Published
2017
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49. Extra Electron Diffraction Spots Caused by Fine Precipitates Formed at the Early Stage of Aging in Al-Mg-X (X=Si, Ge, Zn)-Cu Alloys

Author

Matsuda, Kenji, primary, Kawai, Akihiro, additional, Watanabe, Katsumi, additional, Lee, Seungwon, additional, Marioara, Calin D., additional, Wenner, Sigurd, additional, Nishimura, Katsuhiko, additional, Matsuzaki, Teiichiro, additional, Nunomura, Norio, additional, Sato, Tatsuo, additional, Holmestad, Randi, additional, and Ikeno, Susumu, additional

Published
2017
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