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48 results on '"Tomono, Dai"'

1. Measurement of KN scattering below the KN mass threshold

Author

Noumi Hiroyuki, Inoue Kentaro, Kawasaki Shingo, Aikawa Shuu, Ajimura Shuhei, Akaishi Takaya, Asano Hidemitsu, Beer George, Berucci Carolina, Bragadireau Mario, Buehler Paul Alois, Busso Luigi, Cargnelli Michael, Choi Seonho, Curceanu Catalina, Enomoto Shun, Fujioka Hiroyuki, Fujiwara Yuya, Fukuda Tomokazu, Guaraldo Carlo, Hashimoto Tadashi, Hayano Ryugo S., Hiraiwa Toshihiko, Iio Masami, Iliescu Mihai, Ishiguro Yusuke, Ishimoto Shigeru, Ishikawa Takashi, Ithashi Kenta, Iwai Massaki, Iwasaki Masahiko, Kanno Koki, Kato Kazuma, kato Yuko, Kienle Paul, Komatsu Yusuke, Kou Hiroshi, Ma Yue, Marton Johann, Matsuda Yasuyuki, MIzoi Yutaka, Morra Ombretta, Murayama Rie, Nagae To-mofumi, Ohnishi Hiroaki, Okada Shinji, Omar Zhadyra, Outa Haruhiko, Piscicchia Kristian, Sada Yuta, Sakaguchi Atsushi, Sakuma Fuminori, Sato Masaharu, Scordo Alessadro, Sekimoto Michiko, Shi Hexi, Shirotori Kotaro, Sirghi Diana, Sirghi Florin, Suzuki Ken, Suzuki Shoji, Suzuki Takatoshi, Tanida Kiyoshi, Tatsuno Hideyuki, Tokiyasu Atsushi O., Tokuda Makoto, Tomono Dai, Toyoda Akihisa, Tsukada Kyo, Vazquez-Doce Oton, Widmann Eberhard, Yamaga Takumi, Yamazaki Toshimitsu, Yim Heejoong, Zhang Qi, and Zmeskal Johannes

Subjects
Physics, QC1-999
Abstract

Abstract. We measured πE invariant mass spectra below and above the K¯N mass threshold in the K−d → NπE reaction in order to study the K¯N interaction and the Λ(1405) resonance. This reaction can be described by the two-step process: (i) K¯N1 → K¯N followed by (ii) K¯N2 → πΣ, where N1 and N2 are nucleons bound in the deuteron. We deduced the S -wave scattering amplitude of K¯N →K¯N in the framework of the K¯N πΣ coupled channel so as to reproduce the observed πΣ spectra in the I = 0 channel. We found a resonance pole at 1417.7-7.4+6.0 (fitting error)-1.0+1.1 (systematic error) - i[26.9-7.9+6.0 (fitting error)-2.0+1.7 (systematic error)]MeV/c2.

Published
2024
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2. Imaging Polarimeter for a Sub-MeV Gamma-Ray All-Sky Survey using an Electron-Tracking Compton Camera

Author

Komura, Shotaro, Takada, Atsushi, Mizumura, Yoshitaka, Miyamoto, Shohei, Takemura, Taito, Kishimoto, Tetsuro, Kubo, Hidetoshi, Kurosawa, Shunsuke, Matsuoka, Yoshihiro, Miuchi, Kentaro, Mizumoto, Tetsuya, Nakamasu, Yuma, Nakamura, Kiseki, Oda, Makoto, Parker, Joseph D., Sawano, Tatsuya, Sonoda, Shinya, Tanimori, Toru, Tomono, Dai, and Yoshikawa, Kei

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

X-ray and gamma-ray polarimetry is a promising tool to study the geometry and the magnetic configuration of various celestial objects, such as binary black holes or gamma-ray bursts (GRBs). However, statistically significant polarizations have been detected in few of the brightest objects. Even though future polarimeters using X-ray telescopes are expected to observe weak persistent sources, there are no effective approaches to survey transient and serendipitous sources with a wide field of view (FoV). Here we present an electron-tracking Compton camera (ETCC) as a highly-sensitive gamma-ray imaging polarimeter. The ETCC provides powerful background rejection and a high modulation factor over a FoV of up to 2$\pi$ sr thanks to its excellent imaging based on a well-defined point spread function. Importantly, we demonstrated for the first time the stability of the modulation factor under realistic conditions of off-axis incidence and huge backgrounds using the SPring-8 polarized X-ray beam. The measured modulation factor of the ETCC was 0.65 $\pm$ 0.01 at 150 keV for an off-axis incidence with an oblique angle of 30$^\circ$ and was not degraded compared to the 0.58 $\pm$ 0.02 at 130 keV for on-axis incidence. These measured results are consistent with the simulation results. Consequently, we found that the satellite-ETCC proposed in Tanimori et al. (2015) would provide all-sky surveys of weak persistent sources of 13 mCrab with 10% polarization for a 10$^{7}$ s exposure and over 20 GRBs down to a $6\times10^{-6}$ erg cm$^{-2}$ fluence and 10% polarization during a one-year observation., Comment: 22 pages, 19 figures, 1 table, accepted for publication in ApJ

Published
2017
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3. First On-Site True Gamma-Ray Imaging-Spectroscopy of Contamination near Fukushima Plant

Author

Tomono, Dai, Mizumoto, Tetsuya, Takada, Atsushi, Komura, Shotaro, Matsuoka, Yoshihiro, Mizumura, Yoshitaka, Oda, Makoto, and Tanimori, Toru

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment, Nuclear Experiment
Abstract

We have developed an Electron Tracking Compton Camera (ETCC), which provides a well-defined Point Spread Function (PSF) by reconstructing a direction of each gamma as a point and realizes simultaneous measurement of brightness and spectrum of MeV gamma-rays for the first time. Here, we present the results of our on-site pilot gamma-imaging-spectroscopy with ETCC at three contaminated locations in the vicinity of the Fukushima Daiichi Nuclear Power Plants in Japan in 2014. The obtained distribution of brightness (or emissivity) with remote-sensing observations is unambiguously converted into the dose distribution. We confirm that the dose distribution is consistent with the one taken by conventional mapping measurements with a dosimeter physically placed at each grid point. Furthermore, its imaging spectroscopy, boosted by Compton-edge-free spectra, reveals complex radioactive features in a quantitative manner around each individual target point in the background-dominated environment. Notably, we successfully identify a "micro hot spot" of residual caesium contamination even in an already decontaminated area. These results show that the ETCC performs exactly as the geometrical optics predicts, demonstrates its versatility in the field radiation measurement, and reveals potentials for application in many fields, including the nuclear industry, medical field, and astronomy., Comment: 19 pages, 7 figures, 2 tables

Published
2017
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4. Establishment of Imaging Spectroscopy of Nuclear Gamma-Rays based on Geometrical Optics

Author

Tanimori, Toru, Mizumura, Yoshitaka, Takada, Atsushi, Miyamoto, Shohei, Takemura, Taito, Kishimoto, Tetsuro, Komura, Shotaro, Kubo, Hidetoshi, Kurosawa, Shunsuke, Matsuoka, Yoshihiro, Miuchi, Kentaro, Mizumoto, Tetsuya, Nakamasu, Yuma, Nakamura, Kiseki, Parker, Joseph D., Sawano, Tatsuya, Sonoda, Shinya, Tomono, Dai, and Yoshikawa, Kei

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment, Nuclear Experiment
Abstract

Since the discovery of nuclear gamma-rays, its imaging has been limited to pseudo imaging, such as Compton Camera (CC) and coded mask. Pseudo imaging does not keep physical information (intensity, or brightness in Optics) along a ray, and thus is capable of no more than qualitative imaging of bright objects. To attain quantitative imaging, cameras that realize geometrical optics is essential, which would be, for nuclear MeV gammas, only possible via complete reconstruction of the Compton process. Recently we have revealed that "Electron Tracking Compton Camera" (ETCC) provides a well-defined Point Spread Function (PSF). The information of an incoming gamma is kept along a ray with the PSF and that is equivalent to geometrical optics. Here we present an imaging-spectroscopic measurement with the ETCC. Our results highlight the intrinsic difficulty with CCs in performing accurate imaging, and show that the ETCC surmounts this problem. The imaging capability also helps the ETCC suppress the noise level dramatically by ~3 orders of magnitude without a shielding structure. Furthermore, full reconstruction of Compton process with the ETCC provides spectra free of Compton edges. These results mark the first proper imaging of nuclear gammas based on the genuine geometrical optics., Comment: 22 pages, 8 figures

Published
2017
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5. A performance study of an electron-tracking Compton camera with a compact system for environmental gamma-ray observation

Author

Mizumoto, Tetsuya, Tomono, Dai, Takada, Atsushi, Tanimori, Toru, Komura, Shotaro, Kubo, Hidetoshi, Matsuoka, Yoshihiro, Mizumura, Yoshitaka, Nakamura, Kiseki, Nakamura, Shogo, Oda, Makoto, Parker, Joseph D., Sawano, Tatsuya, Bando, Naoto, and Nabetani, Akira

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Experiment, Nuclear Experiment
Abstract

An electron-tracking Compton camera (ETCC) is a detector that can determine the arrival direction and energy of incident sub-MeV/MeV gamma-ray events on an event-by-event basis. It is a hybrid detector consisting of a gaseous time projection chamber (TPC), that is the Compton-scattering target and the tracker of recoil electrons, and a position-sensitive scintillation camera that absorbs of the scattered gamma rays, to measure gamma rays in the environment from contaminated soil. To measure of environmental gamma rays from soil contaminated with radioactive cesium (Cs), we developed a portable battery-powered ETCC system with a compact readout circuit and data-acquisition system for the SMILE-II experiment. We checked the gamma-ray imaging ability and ETCC performance in the laboratory by using several gamma-ray point sources. The performance test indicates that the field of view (FoV) of the detector is about 1$\;$sr and that the detection efficiency and angular resolution for 662$\;$keV gamma rays from the center of the FoV is $(9.31 \pm 0.95) \times 10^{^-5}$ and $5.9^{\circ} \pm 0.6^{\circ}$, respectively. Furthermore, the ETCC can detect 0.15$\;\mu\rm{Sv/h}$ from a $^{137}$Cs gamma-ray source with a significance of 5$\sigma$ in 13 min in the laboratory. In this paper, we report the specifications of the ETCC and the results of the performance tests. Furthermore, we discuss its potential use for environmental gamma-ray measurements., Comment: 10 pages, 7 figures, proceeding of the 10th International Conference on Position Sensitive Detectors (PSD10)

Published
2015
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6. New readout and data-acquisition system in an electron-tracking Compton camera for MeV gamma-ray astronomy (SMILE-II)

Author

Mizumoto, Tetsuya, Matsuoka, Yoshihiro, Mizumura, Yoshitaka, Tanimori, Toru, Kubo, Hidetoshi, Takada, Atsushi, Iwaki, Satoru, Sawano, Tatsuya, Nakamura, Kiseki, Komura, Shotaro, Nakamura, Shogo, Kishimoto, Tetsuro, Oda, Makoto, Miyamoto, Shohei, Takemura, Taito, Parker, Joseph D., Tomono, Dai, Sonoda, Shinya, Miuchi, Kentaro, and Kurosawa, Shunsuke

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment, Nuclear Experiment
Abstract

For MeV gamma-ray astronomy, we have developed an electron-tracking Compton camera (ETCC) as a MeV gamma-ray telescope capable of rejecting the radiation background and attaining the high sensitivity of near 1 mCrab in space. Our ETCC comprises a gaseous time-projection chamber (TPC) with a micro pattern gas detector for tracking recoil electrons and a position-sensitive scintillation camera for detecting scattered gamma rays. After the success of a first balloon experiment in 2006 with a small ETCC (using a 10$\times$10$\times$15 cm$^3$ TPC) for measuring diffuse cosmic and atmospheric sub-MeV gamma rays (Sub-MeV gamma-ray Imaging Loaded-on-balloon Experiment I; SMILE-I), a (30 cm)$^{3}$ medium-sized ETCC was developed to measure MeV gamma-ray spectra from celestial sources, such as the Crab Nebula, with single-day balloon flights (SMILE-II). To achieve this goal, a 100-times-larger detection area compared with that of SMILE-I is required without changing the weight or power consumption of the detector system. In addition, the event rate is also expected to dramatically increase during observation. Here, we describe both the concept and the performance of the new data-acquisition system with this (30 cm)$^{3}$ ETCC to manage 100 times more data while satisfying the severe restrictions regarding the weight and power consumption imposed by a balloon-borne observation. In particular, to improve the detection efficiency of the fine tracks in the TPC from $\sim$10\% to $\sim$100\%, we introduce a new data-handling algorithm in the TPC. Therefore, for efficient management of such large amounts of data, we developed a data-acquisition system with parallel data flow., Comment: 11 pages, 24 figures

Published
2015
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7. Search for the deeply bound $K^-pp$ state from the semi-inclusive forward-neutron spectrum in the in-flight $K^-$ reaction on helium-3

Author

Hashimoto, Tadashi, Ajimura, Shuhei, Beer, George, Bhang, Hyoungchan, Bragadireanu, Mario, Busso, Luigi, Cargnelli, Michael, Choi, Seonho, Curceanu, Catalina, Enomoto, Shun, Faso, Diego, Fujioka, Hiroyuki, Fujiwara, Yuya, Fukuda, Tomokazu, Guaraldo, Carlo, Hayano, Ryugo S., Hiraiwa, Toshihiko, Iio, Masami, Iliescu, Mihai, Inoue, Kentaro, Ishiguro, Yosuke, Ishikawa, Takashi, Ishimoto, Shigeru, Itahashi, Kenta, Iwai, Masaaki, Iwasaki, Masahiko, Kato, Yuko, Kawasaki, Shingo, Kienle, Paul, Kou, Hiroshi, Ma, Yue, Marton, Johann, Matsuda, Yasuyuki, Mizoi, Yutaka, Morra, Ombretta, Nagae, Tomofumi, Noumi, Hiroyuki, Ohnishi, Hiroaki, Okada, Shinji, Outa, Haruhiko, Piscicchia, Kristian, Lener, Marco Poli, Vidal, Antonio Romero, Sada, Yuta, Sakaguchi, Atsushi, Sakuma, Fuminori, Sato, Masaharu, Scordo, Alessandro, Sekimoto, Michiko, Shi, Hexi, Sirghi, Diana, Sirghi, Florin, Suzuki, Shoji, Suzuki, Takatoshi, Tanida, Kiyoshi, Tatsuno, Hideyuki, Tokuda, Makoto, Tomono, Dai, Toyoda, Akihisa, Tsukada, Kyo, Doce, Oton Vazquez, Widmann, Eberhard, Yamaga, Takumi, Yamazaki, Toshimitsu, Yim, Heejoong, Zhang, Qi, and Zmeskal, Johann

Subjects
Nuclear Experiment
Abstract

An experiment to search for the $K^-pp$ bound state was performed via the in-flight $^3$He($K^-,n)$ reaction using 5.3 $\times$ $10^9$ kaons at 1 GeV/$c$ at the J-PARC hadron experimental facility. In the semi-inclusive neutron missing-mass spectrum at $\theta_{n}^{lab}=0^\circ$, no significant peak was observed in the region corresponding to $K^-pp$ binding energy larger than 80 MeV, where a bump structure has been reported in the $\Lambda p$ final state in different reactions. Assuming the state to be isotropically decaying into $\Lambda p$, mass-dependent upper limits on the production cross section were determined to be 30--180, 70--250, and 100--270 $\mu$b/sr, for the natural widths of 20, 60, and 100 MeV, respectively, at 95\% confidence level., Comment: 12 pages, 6 figures

Published
2014
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8. Emissions of Hydrogen Isotopes from the Nuclear Muon Capture Reaction in natSi

Author

Manabe Seiya, Watanabe Yukinobu, Niikura Megumi, Nakano Keita, Saito Takeshi Y., Suzuki Daisuke, Kawashima Yoshitaka, Tomono Dai, Sato Akira, and Harano Hideki

Subjects
Physics, QC1-999
Abstract

The energy spectra of protons, deuterons and tritons produced by the nuclear muon capture reaction in natSi were measured at the M1 beam line of Muon Science Innovative Channel (MuSIC) in Research Center for Nuclear Physics (RCNP) using a counter telescope consisting of a Si detector and a CsI(Tl) scintillation detector. The measured energy spectra were consistent with the previous ones. The experimental energy spectra were compared with theoretical model calculations using the Particle and Heavy Ion Transport code System (PHITS). In PHITS, both the dynamical and statistical processes in the nuclear muon capture reaction are described by the Quantum Molecular Dynamics (QMD) or the modified QMD and the Generalized Evaporation Model (GEM), respectively. The PHITS simulation reproduced generally well the measured proton spectrum at emission energies below 20 MeV, while underestimation was seen at emission energies above 20 MeV. The PHITS simulation underestimates remarkably the measured energy spectra of light complex particles (deuterons, tritons, and alpha particles) in the high energy region.

Published
2023
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10. The K1.8BR spectrometer system at J-PARC

Author

Agari, Keizo, Ajimura, Shuhei, Beer, George, Bhang, Hyoungchan, Bragadireanu, Mario, Buehler, Paul, Busso, Luigi, Cargnelli, Michael, Choi, Seonho, Curceanu, Catalina, Enomoto, Shun, Faso, Diego, Fujioka, Hiroyuki, Fujiwara, Yuya, Fukuda, Tomokazu, Guaraldo, Carlo, Hashimoto, Tadashi, Hayano, Ryugo S., Hiraiwa, Toshihiko, Hirose, Erina, Ieiri, Masaharu, Iio, Masami, Iliescu, Mihai, Inoue, Kentaro, Ishiguro, Yosuke, Ishikawa, Takashi, Ishimoto, Shigeru, Ishiwatari, Tomoichi, Itahashi, Kenta, Iwai, Masaaki, Iwasaki, Masahiko, Kakiguchi, Yutaka, Katoh, Yohji, Kawasaki, Shingo, Kienle, Paul, Kou, Hiroshi, Ma, Yue, Marton, Johann, Matsuda, Yasuyuki, Minakawa, Michifumi, Mizoi, Yutaka, Morra, Ombretta, Muto, Ryotaro, Nagae, Tomofumi, Naruki, Megumi, Noumi, Hiroyuki, Ohnishi, Hiroaki, Okada, Shinji, Outa, Haruhiko, Piscicchia, Kristian, Lener, Marco Poli, Vidal, Antonio Romero, Sada, Yuta, Sakaguchi, Atsushi, Sakuma, Fuminori, Sato, Masaharu, Sato, Yoshinori, Sawada, Shin'ya, Scordo, Alessandro, Sekimoto, Michiko, Shi, Hexi, Shirakabe, Yoshihisa, Sirghi, Diana, Sirghi, Florin, Suzuki, Ken, Suzuki, Shoji, Suzuki, Takatoshi, Suzuki, Yoshihiro, Takahashi, Hitoshi, Tanaka, Kazuhiro, Tanaka, Nobuaki, Tatsuno, Hideyuki, Tokuda, Makoto, Toyoda, Akihisa, Tomono, Dai, Tsukada, Kyo, Doce, Oton Vazquez, Watanabe, Hiroaki, Widmann, Eberhard, Wunschek, Barbara K., Yamanoi, Yutaka, Yamazaki, Toshimitsu, Yim, Heejoong, and Zmeskal, Johann

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

A new spectrometer system was designed and constructed at the secondary beam line K1.8BR in the hadron hall of J-PARC to investigate $\bar K N$ interactions and $\bar K$-nuclear bound systems. The spectrometer consists of a high precision beam line spectrometer, a liquid $^3$He/$^4$He/D$_2$ target system, a Cylindrical Detector System that surrounds the target to detect the decay particles from the target region, and a neutron time-of-flight counter array located $\sim$15 m downstream from the target position. Details of the design, construction, and performance of the detector components are described., Comment: 33 pages, 25 figures

Published
2012
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11. Summary of the K−pp bound-state observation in E15 and future prospects

Author

Sakuma Fuminori, Ajimura Shuhei, Akaishi Takaya, Asano Hidemitsu, Bazzi Massimiliano, Beer George, Bhang Hyoungchan, Bragadireanu Mario, Buehler Paul, Busso Luigi, Cargnelli Michael, Choi Seonho, Clozza Alberto, Curceanu Catalina, Enomoto Shun, Fujioka Hiroyuki, Fujiwara Yuya, Fukuda Tomokazu, Guaraldo Carlo, Hashimoto Tadashi, Hayano Ryugo S., Hiraiwa Toshihiko, Iio Masami, Iliescu Mihai, Inoue Kentaro, Ishiguro Yosuke, Ishikawa Takashi, Ishimoto Shigeru, Itahashi Kenta, Iwasaki Masahiko, Iwai Masaaki, Kanno Koki, Kato Kazuma, Kato Yuko, Kawasaki Shingo, Kienle Paul, Kou Hiroshi, Ma Yue, Marton Johann, Matsuda Yasuyuki, Miliucci Marco, Mizoi Yutaka, Morra Ombretta, Murayama Rie, Nagae Tomofumi, Noumi Hiroyuki, Ohnishi Hiroaki, Okada Shinji, Outa Haruhiko, Ozawa Kyoichiro, Piscicchia Kristian, Sada Yuta, Sakaguchi Atsushi, Sato Masaharu, Scordo Alessandro, Sekimoto Michiko, Shi Hexi, Shirotori Kotaro, Sirghi Diana, Sirghi Florin, Suzuki Shoji, Suzuki Takatoshi, Tanida Kiyoshi, Tatsuno Hideyuki, Tokuda Makoto, Tomono Dai, Toyoda Akihisa, Tsukada Kyo, Vázquez Doce Oton, Widmann Eberhard, Yamaga Takumi, Yamazaki Toshimitsu, Yoshida Chihiro, Zhang Qi, and Zmeskal Johann

Subjects
Physics, QC1-999
Abstract

The possible existence of deeply-bound $\bar K$K¯-nuclear bound states, kaonic nuclei, has been widely discussed as products of the strongly attractive $\bar K$K¯N interaction in I = 0 channels. Investigations of those exotic states will provide us unique information of the $\bar K$K¯N interaction below the threshold, which is still not fully understood so far. Recently, we observed the simplest kaonic nuclei, $\bar K$K¯NN, having a much deeper binding energy than normal nuclei via inflight (K−, N) reactions at the J-PARC E15 experiment. For further studies, we have proposed a series of experimental programs for the systematic investigation of light kaonic nuclei, from $\bar K$K¯N (Λ(1405)) to $\bar K$K¯NNNN. We will measure the $\bar K$K¯NNN (A = 3) system at the new experiment approved as J-PARC E80, as a first step toward a comprehensive study.

Published
2022
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13. Non-Destructive Composition Identification for Mixtures of Iron Compounds Using a Chemical Environmental Effect on a Muon Capture Process

Author

Ninomiya, Kazuhiko, primary, Kajino, Meito, additional, Nambu, Akihiro, additional, Inagaki, Makoto, additional, Kudo, Takuto, additional, Sato, Akira, additional, Terada, Kentaro, additional, Shinohara, Atsushi, additional, Tomono, Dai, additional, Kawashima, Yoshitaka, additional, Sakai, Yoichi, additional, and Takayama, Tsutomu, additional

Published
2022
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14. Emissions of Hydrogen Isotopes from the Nuclear Muon Capture Reaction in natSi.

Author

Manabe, Seiya, Watanabe, Yukinobu, Niikura, Megumi, Nakano, Keita, Saito, Takeshi Y., Suzuki, Daisuke, Kawashima, Yoshitaka, Tomono, Dai, Sato, Akira, and Harano, Hideki

Subjects
HYDROGEN isotopes, NUCLEAR reactions, DEUTERONS, PROTON spectra, NUCLEAR energy
Abstract

The energy spectra of protons, deuterons and tritons produced by the nuclear muon capture reaction in natSi were measured at the M1 beam line of Muon Science Innovative Channel (MuSIC) in Research Center for Nuclear Physics (RCNP) using a counter telescope consisting of a Si detector and a CsI(Tl) scintillation detector. The measured energy spectra were consistent with the previous ones. The experimental energy spectra were compared with theoretical model calculations using the Particle and Heavy Ion Transport code System (PHITS). In PHITS, both the dynamical and statistical processes in the nuclear muon capture reaction are described by the Quantum Molecular Dynamics (QMD) or the modified QMD and the Generalized Evaporation Model (GEM), respectively. The PHITS simulation reproduced generally well the measured proton spectrum at emission energies below 20 MeV, while underestimation was seen at emission energies above 20 MeV. The PHITS simulation underestimates remarkably the measured energy spectra of light complex particles (deuterons, tritons, and alpha particles) in the high energy region. [ABSTRACT FROM AUTHOR]

Published
2023
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15. Chemical effect on muonic atom formation through muon transfer reaction in benzene and cyclohexane samples

Author

Inagaki, Makoto, Ninomiya, Kazuhiko, Nambu, Akihiro, Kudo, Takuto, Terada, Kentaro, Sato, Akira, Kawashima, Yoshitaka, Tomono, Dai, and Shinohara, Atsushi

Subjects
muonic atom, muonic X-ray, pionic atom, Physics::Atomic and Molecular Clusters, Physics::Atomic Physics, Physics::Chemical Physics, transfer reaction, chemical effect
Abstract

To investigate the chemical effect on the muon capture process through a muon transfer reaction from a muonic hydrogen atom, the formation rate of muonic carbon atoms is measured for benzene and cyclohexane molecules in liquid samples. The muon transfer rate to carbon atoms of the benzene molecule is higher than that to the carbon atoms of the cyclohexane molecule. Such a deviation has never been observed among those molecules for gas samples. This may be because the transfers occur from the excited states of muonic hydrogen atoms in the liquid system, whereas in the gas system, all the transfers occur from the 1s (ground) state of muon hydrogen atoms. The muonic hydrogen atoms in the excited states have a larger radius than those in the 1s state and are therefore considered to be affected by the steric hindrance of the molecular structure. This indicates that the excited states of muonic hydrogen atoms contribute significantly to the chemical effects on the muon transfer reaction.

Published
2021

17. Summary of theK−ppbound-state observation in E15 and future prospects

Author

Sakuma, Fuminori, primary, Ajimura, Shuhei, additional, Akaishi, Takaya, additional, Asano, Hidemitsu, additional, Bazzi, Massimiliano, additional, Beer, George, additional, Bhang, Hyoungchan, additional, Bragadireanu, Mario, additional, Buehler, Paul, additional, Busso, Luigi, additional, Cargnelli, Michael, additional, Choi, Seonho, additional, Clozza, Alberto, additional, Curceanu, Catalina, additional, Enomoto, Shun, additional, Fujioka, Hiroyuki, additional, Fujiwara, Yuya, additional, Fukuda, Tomokazu, additional, Guaraldo, Carlo, additional, Hashimoto, Tadashi, additional, Hayano, Ryugo S., additional, Hiraiwa, Toshihiko, additional, Iio, Masami, additional, Iliescu, Mihai, additional, Inoue, Kentaro, additional, Ishiguro, Yosuke, additional, Ishikawa, Takashi, additional, Ishimoto, Shigeru, additional, Itahashi, Kenta, additional, Iwasaki, Masahiko, additional, Iwai, Masaaki, additional, Kanno, Koki, additional, Kato, Kazuma, additional, Kato, Yuko, additional, Kawasaki, Shingo, additional, Kienle, Paul, additional, Kou, Hiroshi, additional, Ma, Yue, additional, Marton, Johann, additional, Matsuda, Yasuyuki, additional, Miliucci, Marco, additional, Mizoi, Yutaka, additional, Morra, Ombretta, additional, Murayama, Rie, additional, Nagae, Tomofumi, additional, Noumi, Hiroyuki, additional, Ohnishi, Hiroaki, additional, Okada, Shinji, additional, Outa, Haruhiko, additional, Ozawa, Kyoichiro, additional, Piscicchia, Kristian, additional, Sada, Yuta, additional, Sakaguchi, Atsushi, additional, Sato, Masaharu, additional, Scordo, Alessandro, additional, Sekimoto, Michiko, additional, Shi, Hexi, additional, Shirotori, Kotaro, additional, Sirghi, Diana, additional, Sirghi, Florin, additional, Suzuki, Shoji, additional, Suzuki, Takatoshi, additional, Tanida, Kiyoshi, additional, Tatsuno, Hideyuki, additional, Tokuda, Makoto, additional, Tomono, Dai, additional, Toyoda, Akihisa, additional, Tsukada, Kyo, additional, Vázquez Doce, Oton, additional, Widmann, Eberhard, additional, Yamaga, Takumi, additional, Yamazaki, Toshimitsu, additional, Yoshida, Chihiro, additional, Zhang, Qi, additional, and Zmeskal, Johann, additional

Published
2022
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20. Chemical effect on muonic atom formation through muon transfer reaction in benzene and cyclohexane samples

Author

00898455, Inagaki, Makoto, Ninomiya, Kazuhiko, Nambu, Akihiro, Kudo, Takuto, Terada, Kentaro, Sato, Akira, Kawashima, Yoshitaka, Tomono, Dai, Shinohara, Atsushi, 00898455, Inagaki, Makoto, Ninomiya, Kazuhiko, Nambu, Akihiro, Kudo, Takuto, Terada, Kentaro, Sato, Akira, Kawashima, Yoshitaka, Tomono, Dai, and Shinohara, Atsushi

Abstract

To investigate the chemical effect on the muon capture process through a muon transfer reaction from a muonic hydrogen atom, the formation rate of muonic carbon atoms is measured for benzene and cyclohexane molecules in liquid samples. The muon transfer rate to carbon atoms of the benzene molecule is higher than that to the carbon atoms of the cyclohexane molecule. Such a deviation has never been observed among those molecules for gas samples. This may be because the transfers occur from the excited states of muonic hydrogen atoms in the liquid system, whereas in the gas system, all the transfers occur from the 1s (ground) state of muon hydrogen atoms. The muonic hydrogen atoms in the excited states have a larger radius than those in the 1s state and are therefore considered to be affected by the steric hindrance of the molecular structure. This indicates that the excited states of muonic hydrogen atoms contribute significantly to the chemical effects on the muon transfer reaction.

Published
2021

22. \(\bar{K}\)-Nuclear Bound State at J-PARC

Author

Sakuma, Fuminori, primary, Ajimura, Shuhei, additional, Asano, Hidemitsu, additional, Beer, George, additional, Berucci, Carolina, additional, Bhang, Hyoungchan, additional, Bragadireanu, Mario, additional, Buehler, Paul, additional, Busso, Luigi, additional, Cargnelli, Michael, additional, Choi, Seonho, additional, Curceanu, Catalina, additional, Enomoto, Shun, additional, Fujioka, Hiroyuki, additional, Fujiwara, Yuya, additional, Fukuda, Tomokazu, additional, Guaraldo, Carlo, additional, Hashimoto, Tadashi, additional, Hayano, Ryugo S., additional, Hiraiwa, Toshihiko, additional, Iio, Masami, additional, Iliescu, Mihai, additional, Inoue, Kentaro, additional, Ishiguro, Yosuke, additional, Ishikawa, Takashi, additional, Ishimoto, Shigeru, additional, Itahashi, Kenta, additional, Iwasaki, Masahiko, additional, Kanno, Koki, additional, Kato, Kazuma, additional, Kato, Yuko, additional, Kawasaki, Shingo, additional, Kienle, Paul, additional, Kou, Hiroshi, additional, Ma, Yue, additional, Marton, Johann, additional, Matsuda, Yasuyuki, additional, Mizoi, Yutaka, additional, Morra, Ombretta, additional, Nagae, Tomofumi, additional, Noumi, Hiroyuki, additional, Ohnishi, Hiroaki, additional, Okada, Shinji, additional, Outa, Haruhiko, additional, Piscicchia, Kristian, additional, Sada, Yuta, additional, Sakaguchi, Atsushi, additional, Sato, Masaharu, additional, Scordo, Alessandro, additional, Sekimoto, Michiko, additional, Shi, Hexi, additional, Shirotori, Kotaro, additional, Sirghi, Diana, additional, Sirghi, Florin, additional, Suzuki, Ken, additional, Suzuki, Shoji, additional, Suzuki, Takatoshi, additional, Tanida, Kiyoshi, additional, Tatsuno, Hideyuki, additional, Tokuda, Makoto, additional, Tomono, Dai, additional, Toyoda, Akihisa, additional, Tsukada, Kyo, additional, Vázquez Doce, Oton, additional, Widmann, Eberhard, additional, Yamaga, Takumi, additional, Yamazaki, Toshimitsu, additional, Zhang, Qi, additional, and Zmeskal, Johannes, additional

Published
2020
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24. Feasibility Study for NITE SiC/SiC as the Target Material for Pions/Muons Production at High-Power Proton Accelerator Facilities

Author

Makimura, Shunsuke, primary, Park, Joon-Soo, additional, Sato, Akira, additional, Matoba, Shiro, additional, Kawamura, Naritoshi, additional, Yamazaki, Takayuki, additional, Ninomiya, Kazuhiko, additional, Tomono, Dai, additional, Nakazato, Naofumi, additional, Calviani, Marco, additional, and Garcia, Inigo Lamas, additional

Published
2020
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26. K− pp bound system at J-PARC

Author

Sakuma, Fuminori, primary, Ajimura, Shuhei, additional, Asano, Hidemitsu, additional, Beer, George, additional, Berucci, Carolina, additional, Bhang, Hyoungchan, additional, Bragadireanu, Mario, additional, Buehler, Paul, additional, Busso, Luigi, additional, Cargnelli, Michael, additional, Choi, Seonho, additional, Curceanu, Catalina, additional, Enomoto, Shun, additional, Fujioka, Hiroyuki, additional, Fujiwara, Yuya, additional, Fukuda, Tomokazu, additional, Guaraldo, Carlo, additional, Hashimoto, Tadashi, additional, Hayano, Ryugo S., additional, Hiraiwa, Toshihiko, additional, Iio, Masami, additional, Iliescu, Mihai, additional, Inoue, Kentaro, additional, Ishiguro, Yosuke, additional, Ishikawa, Takashi, additional, Ishimoto, Shigeru, additional, Itahashi, Kenta, additional, Iwasaki, Masahiko, additional, Kanno, Koki, additional, Kato, Kazuma, additional, Kato, Yuko, additional, Kawasaki, Shingo, additional, Kienle, Paul, additional, Kou, Hiroshi, additional, Ma, Yue, additional, Marton, Johann, additional, Matsuda, Yasuyuki, additional, Mizoi, Yutaka, additional, Morra, Ombretta, additional, Nagae, Tomofumi, additional, Noumi, Hiroyuki, additional, Ohnishi, Hiroaki, additional, Okada, Shinji, additional, Outa, Haruhiko, additional, Piscicchia, Kristian, additional, Sada, Yuta, additional, Sakaguchi, Atsushi, additional, Sato, Masaharu, additional, Scordo, Alessandro, additional, Sekimoto, Michiko, additional, Shi, Hexi, additional, Shirotori, Kotaro, additional, Sirghi, Diana, additional, Sirghi, Florin, additional, Suzuki, Ken, additional, Suzuki, Shoji, additional, Suzuki, Takatoshi, additional, Tanida, Kiyoshi, additional, Tatsuno, Hideyuki, additional, Tokuda, Makoto, additional, Tomono, Dai, additional, Toyoda, Akihisa, additional, Tsukada, Kyo, additional, Doce, Oton Vázquez, additional, Widmann, Eberhard, additional, Yamaga, Takumi, additional, Yamazaki, Toshimitsu, additional, Zhang, Qi, additional, and Zmeskal, Johannes, additional

Published
2020
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27. Λ(1405) Spectroscopy via the In-flight d(K−, n) Reaction at the J-PARC K1.8BR

Author

Kawasaki, Shingo, primary, Aikawa, Shu, additional, Ajimura, Shuhei, additional, Akaishi, Takaya, additional, Asano, Hidemitsu, additional, Beer, George, additional, Berruci, Carolina, additional, Bragadireanu, Mario, additional, Buehler, Paul, additional, Busso, Luigi, additional, Cargnelli, Michael, additional, Choi, Seonho, additional, Curceanu, Catalina, additional, Enomoto, Shun, additional, Fujioka, Hiroyuki, additional, Fujiwara, Yuya, additional, Fukuda, Tomokazu, additional, Guaraldo, Carlo, additional, Hashimoto, Tadashi, additional, Hayano, Ryugo S., additional, Hiraiwa, Toshihiko, additional, Iio, Masami, additional, Iliescu, Mihai, additional, Inoue, Kentaro, additional, Ishiguro, Yosuke, additional, Ishikawa, Takashi, additional, Ishimoto, Shigeru, additional, Itahashi, Kenta, additional, Iwai, Masaaki, additional, Iwasaki, Masahiko, additional, Kanno, Koki, additional, Kato, Kazuma, additional, Kato, Yuko, additional, Kienle, Paul, additional, Komatsu, Yusuke, additional, Kou, Hirofumi, additional, Ma, Yue, additional, Marton, Johann, additional, Matsuda, Yasuyuki, additional, Mizoi, Yutaka, additional, Morra, Ombretta, additional, Nagae, Tomofumi, additional, Noumi, Hiroyuki, additional, Ohnishi, Hiroaki, additional, Okada, Shinji, additional, Omar, Zhadyra, additional, Outa, Haruhiko, additional, Piscicchia, Kristian, additional, Sada, Yuta, additional, Sakaguchi, Atsushi, additional, Sakuma, Fuminori, additional, Sato, Masaharu, additional, Scordo, Alessandro, additional, Sekimoto, Michiko, additional, Shi, Hexi, additional, Shirotori, Kotaro, additional, Sirghi, Diana, additional, Sirghi, Florin, additional, Suzuki, Ken, additional, Suzuki, Shoji, additional, Suzuki, Takatoshi, additional, Tanida, Kiyoshi, additional, Tatsuno, Hideyuki, additional, Tokiyasu, Atsushi O., additional, Tokuda, Makoto, additional, Tomono, Dai, additional, Toyoda, Akihisa, additional, Tsukada, Kyo, additional, Vazquez Doce, Oton, additional, Widmann, Eberhard, additional, Yamaga, Takumi, additional, Yamazaki, Toshimitsu, additional, Yim, Heejoong, additional, Zhang, Qi, additional, and Zmeskal, Johann, additional

Published
2019
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28. Results of \(\bar{K}NN\) Search via the (K−, n) Reaction at J-PARC

Author

Yamaga, Takumi, primary, Ajimura, Shuhei, additional, Asano, Hidemitsu, additional, Beer, George, additional, Berucci, Carolina, additional, Bhang, Hyeongchan, additional, Bragadireanu, Mario, additional, Buehler, Paul, additional, Busso, Luigi, additional, Cargnelli, Michael, additional, Choi, Seonho, additional, Curceanu, Catalina, additional, Enomoto, Shun, additional, Fujioka, Hiroyuki, additional, Fujiwara, Yuya, additional, Fukuda, Tomokazu, additional, Guaraldo, Carlo, additional, Hashimoto, Tadashi, additional, Hayano, Ryugo S., additional, Hiraiwa, Toshihiko, additional, Iio, Masami, additional, Iliescu, Mihai, additional, Inoue, Kentaro, additional, Ishiguro, Yosuke, additional, Ishikawa, Takashi, additional, Ishimoto, Shigeru, additional, Itahashi, Kenta, additional, Iwasaki, Masahiko, additional, Kanno, Koki, additional, Kato, Kazuma, additional, Kato, Yuko, additional, Kawasaki, Shingo, additional, Kienle, Paul, additional, Kou, Hirofumi, additional, Ma, Yue, additional, Marton, Johann, additional, Matsuda, Yasuyuki, additional, Mizoi, Yutaka, additional, Morra, Ombretta, additional, Nagae, Tomofumi, additional, Noumi, Hiroyuki, additional, Ohnishi, Hiroaki, additional, Okada, Shinji, additional, Outa, Haruhiko, additional, Piscicchia, Kristian, additional, Sada, Yuta, additional, Sakaguchi, Atsushi, additional, Sakuma, Fuminori, additional, Sato, Masaharu, additional, Scordo, Alessandro, additional, Sekimoto, Michiko, additional, Shi, Hexi, additional, Shirotori, Kotaro, additional, Sirghi, Diana, additional, Sirghi, Florin, additional, Suzuki, Ken, additional, Suzuki, Shoji, additional, Suzuki, Takatoshi, additional, Tanida, Kiyoshi, additional, Tatsuno, Hideyuki, additional, Tokuda, Makoto, additional, Tomono, Dai, additional, Toyoda, Akihisa, additional, Tsukada, Kyo, additional, Vazquez Doce, Oton, additional, Widmann, Eberhard, additional, Yamazaki, Toshimitsu, additional, Zhang, Qi, additional, and Zmeskal, Johann, additional

Published
2019
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29. Construction of new DC muon beamline, MuSIC-RCNP, for muon applied science

Author

Tomono, Dai, primary, Fukuda, M., additional, Hatanaka, K., additional, Higemoto, W., additional, Ieiri, M., additional, Kawashima, Y., additional, Kuno, Y., additional, Matsuzaki, T., additional, Minakawa, M., additional, Miyake, Y., additional, Nakazawa, Y., additional, Ninomiya, K., additional, Mori, Y., additional, Morinobu, S., additional, Sato, Akira, additional, Shimomura, K., additional, Takahisa, K., additional, Taniguchi, A., additional, Weichao, Y., additional, and L. Wong, M., additional

Published
2018
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30. 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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31. First On-Site True Gamma-Ray Imaging-Spectroscopy of Contamination near Fukushima Plant

Author

90531468, 40711982, Tomono, Dai, Mizumoto, Tetsuya, Takada, Atsushi, Komura, Shotaro, Matsuoka, Yoshihiro, Mizumura, Yoshitaka, Oda, Makoto, Tanimori, Toru, 90531468, 40711982, Tomono, Dai, Mizumoto, Tetsuya, Takada, Atsushi, Komura, Shotaro, Matsuoka, Yoshihiro, Mizumura, Yoshitaka, Oda, Makoto, and Tanimori, Toru

Abstract

We have developed an Electron Tracking Compton Camera (ETCC), which provides a well-defined Point Spread Function (PSF) by reconstructing a direction of each gamma as a point and realizes simultaneous measurement of brightness and spectrum of MeV gamma-rays for the first time. Here, we present the results of our on-site pilot gamma-imaging-spectroscopy with ETCC at three contaminated locations in the vicinity of the Fukushima Daiichi Nuclear Power Plants in Japan in 2014. The obtained distribution of brightness (or emissivity) with remote-sensing observations is unambiguously converted into the dose distribution. We confirm that the dose distribution is consistent with the one taken by conventional mapping measurements with a dosimeter physically placed at each grid point. Furthermore, its imaging spectroscopy, boosted by Compton-edge-free spectra, reveals complex radioactive features in a quantitative manner around each individual target point in the background-dominated environment. Notably, we successfully identify a "micro hot spot" of residual caesium contamination even in an already decontaminated area. These results show that the ETCC performs exactly as the geometrical optics predicts, demonstrates its versatility in the field radiation measurement, and reveals potentials for application in many fields, including the nuclear industry, medical field, and astronomy.

Published
2017

32. Establishment of Imaging Spectroscopy of Nuclear Gamma-Rays based on Geometrical Optics

Author

40711982, 90531468, Tanimori, Toru, Mizumura, Yoshitaka, Takada, Atsushi, Miyamoto, Shohei, Takemura, Taito, Kishimoto, Tetsuro, Komura, Shotaro, Kubo, Hidetoshi, Kurosawa, Shunsuke, Matsuoka, Yoshihiro, Miuchi, Kentaro, Mizumoto, Tetsuya, Nakamasu, Yuma, Nakamura, Kiseki, Parker, Joseph D., Sawano, Tatsuya, Sonoda, Shinya, Tomono, Dai, Yoshikawa, Kei, 40711982, 90531468, Tanimori, Toru, Mizumura, Yoshitaka, Takada, Atsushi, Miyamoto, Shohei, Takemura, Taito, Kishimoto, Tetsuro, Komura, Shotaro, Kubo, Hidetoshi, Kurosawa, Shunsuke, Matsuoka, Yoshihiro, Miuchi, Kentaro, Mizumoto, Tetsuya, Nakamasu, Yuma, Nakamura, Kiseki, Parker, Joseph D., Sawano, Tatsuya, Sonoda, Shinya, Tomono, Dai, and Yoshikawa, Kei

Abstract

Since the discovery of nuclear gamma-rays, its imaging has been limited to pseudo imaging, such as Compton Camera (CC) and coded mask. Pseudo imaging does not keep physical information (intensity, or brightness in Optics) along a ray, and thus is capable of no more than qualitative imaging of bright objects. To attain quantitative imaging, cameras that realize geometrical optics is essential, which would be, for nuclear MeV gammas, only possible via complete reconstruction of the Compton process. Recently we have revealed that "Electron Tracking Compton Camera" (ETCC) provides a well-defined Point Spread Function (PSF). The information of an incoming gamma is kept along a ray with the PSF and that is equivalent to geometrical optics. Here we present an imaging-spectroscopic measurement with the ETCC. Our results highlight the intrinsic difficulty with CCs in performing accurate imaging, and show that the ETCC surmounts this problem. The imaging capability also helps the ETCC suppress the noise level dramatically by ~3 orders of magnitude without a shielding structure. Furthermore, full reconstruction of Compton process with the ETCC provides spectra free of Compton edges. These results mark the first proper imaging of nuclear gammas based on the genuine geometrical optics.

Published
2017

33. Performance and test of Electron-Tracking Compton Camera as a polarimeter

Author

Parker, Joseph, Kishimoto, Tetsuro, Komura, Shotaro, Takada, Atsushi, Mizumura, Yoshiki, Kubo, Hidetoshi, Matsuoka, Yoshihiro, Miyamoto, Shohei, Mizumoto, Tetsuya, Nakamasu, Yuuma, Nakamura, Kiseki, Sonoda, Shinya, Takemura, Taito, Tanimori, Toru, Tomono, Dai, Yoshikawa, Kei, Kurosawa, Shunsuke, Miuchi, Kentaro, and Sawano, Tatsuya

Abstract

第16回宇宙科学シンポジウム (2016年1月6日-7日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県, 16th Space Science Symposium (January 6-7, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency(JAXA)(ISAS)Sagamihara Campus), Sagamihara, Kanagawa Japan, 著者人数: 19名, 資料番号: SA6000046097, レポート番号: P-098

Published
2016

34. Establishment of Imaging Spectroscopy of Nuclear Gamma-Rays based on Geometrical Optics

Author

Tanimori, Toru, primary, Mizumura, Yoshitaka, additional, Takada, Atsushi, additional, Miyamoto, Shohei, additional, Takemura, Taito, additional, Kishimoto, Tetsuro, additional, Komura, Shotaro, additional, Kubo, Hidetoshi, additional, Kurosawa, Shunsuke, additional, Matsuoka, Yoshihiro, additional, Miuchi, Kentaro, additional, Mizumoto, Tetsuya, additional, Nakamasu, Yuma, additional, Nakamura, Kiseki, additional, Parker, Joseph D., additional, Sawano, Tatsuya, additional, Sonoda, Shinya, additional, Tomono, Dai, additional, and Yoshikawa, Kei, additional

Published
2017
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36. Future Plans for Polarization Imaging Observations of MeV Celestial Gamma-Rays with an Electron-Tracking Compton Telescope

Author

Parker, Joseph, Komura, Shotaro, Tanimori, Toru, Kubo, Hidetoshi, Takada, Atsushi, Mizumura, Yoshitaka, Mizumoto, Tetsuya, Sonoda, Shinya, Tomono, Dai, Iwaki, Satoru, Nakamura, Kiseki, Matsuoka, Yoshihiro, Nakamura, Shogo, Kishimoto, Tetsuro, Oda, Makoto, Takemura, Taito, Miyamoto, Shohei, Miuchi, Kentaro, Sawano, Tatsuya, and Kurosawa, Shunsuke

Abstract

第15回宇宙科学シンポジウム (2015年1月6日-7日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県, 15th Space Science Symposium (January 6-7, 2015. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency(JAXA)(ISAS)Sagamihara Campus), Sagamihara, Kanagawa Japan, 著者人数: 20名, 資料番号: SA6000034067, レポート番号: P-067

Published
2015

37. 偏光検出器としての電子飛跡検出型コンプトンカメラの性能試験

Author

岸本, 哲朗, 古村, 翔太郎, 高田, 淳史, 水村, 好貴, 窪, 秀利, 松岡, 佳大, 宮本, 奨平, 水本, 哲矢, 中増, 勇真, 中村, 輝石, Parker, Joseph, 園田, 真也, 竹村, 泰斗, 谷森, 達, 友野, 大, 吉川, 慶, 黒澤, 俊介, 身内, 賢太朗, 澤野, 達哉, Kishimoto, Tetsuro, Komura, Shotaro, Takada, Atsushi, Mizumura, Yoshiki, Kubo, Hidetoshi, Matsuoka, Yoshihiro, Miyamoto, Shohei, Mizumoto, Tetsuya, Nakamasu, Yuuma, Nakamura, Kiseki, Sonoda, Shinya, Takemura, Taito, Tanimori, Toru, Tomono, Dai, Yoshikawa, Kei, Kurosawa, Shunsuke, Miuchi, Kentaro, Sawano, Tatsuya, 岸本, 哲朗, 古村, 翔太郎, 高田, 淳史, 水村, 好貴, 窪, 秀利, 松岡, 佳大, 宮本, 奨平, 水本, 哲矢, 中増, 勇真, 中村, 輝石, Parker, Joseph, 園田, 真也, 竹村, 泰斗, 谷森, 達, 友野, 大, 吉川, 慶, 黒澤, 俊介, 身内, 賢太朗, 澤野, 達哉, Kishimoto, Tetsuro, Komura, Shotaro, Takada, Atsushi, Mizumura, Yoshiki, Kubo, Hidetoshi, Matsuoka, Yoshihiro, Miyamoto, Shohei, Mizumoto, Tetsuya, Nakamasu, Yuuma, Nakamura, Kiseki, Sonoda, Shinya, Takemura, Taito, Tanimori, Toru, Tomono, Dai, Yoshikawa, Kei, Kurosawa, Shunsuke, Miuchi, Kentaro, and Sawano, Tatsuya

Abstract

会議情報: 第16回宇宙科学シンポジウム (2016年1月6日-7日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県, 著者人数: 19名, Meeting Information: 16th Space Science Symposium (January 6-7, 2016. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency(JAXA)(ISAS)Sagamihara Campus), Sagamihara, Kanagawa Japan

Published
2016

38. 電子飛跡検出型コンプトン望遠鏡を用いた天体MeVガンマ線の偏光撮像観測計画

Author

古村, 翔太郎, 谷森, 達, 窪, 秀利, 高田, 淳史, Parker, Joseph, 水村, 好貴, 水本, 哲矢, 園田, 真也, 友野, 大, 岩城, 智, 中村, 輝石, 松岡, 佳大, 中村, 祥吾, 岸本, 哲朗, 小田, 真, 竹村, 泰斗, 宮本, 奨平, 身内, 賢太朗, 澤野, 達哉, 黒澤, 俊介, Komura, Shotaro, Tanimori, Toru, Kubo, Hidetoshi, Takada, Atsushi, Mizumura, Yoshitaka, Mizumoto, Tetsuya, Sonoda, Shinya, Tomono, Dai, Iwaki, Satoru, Nakamura, Kiseki, Matsuoka, Yoshihiro, Nakamura, Shogo, Kishimoto, Tetsuro, Oda, Makoto, Takemura, Taito, Miyamoto, Shohei, Miuchi, Kentaro, Sawano, Tatsuya, Kurosawa, Shunsuke, 古村, 翔太郎, 谷森, 達, 窪, 秀利, 高田, 淳史, Parker, Joseph, 水村, 好貴, 水本, 哲矢, 園田, 真也, 友野, 大, 岩城, 智, 中村, 輝石, 松岡, 佳大, 中村, 祥吾, 岸本, 哲朗, 小田, 真, 竹村, 泰斗, 宮本, 奨平, 身内, 賢太朗, 澤野, 達哉, 黒澤, 俊介, Komura, Shotaro, Tanimori, Toru, Kubo, Hidetoshi, Takada, Atsushi, Mizumura, Yoshitaka, Mizumoto, Tetsuya, Sonoda, Shinya, Tomono, Dai, Iwaki, Satoru, Nakamura, Kiseki, Matsuoka, Yoshihiro, Nakamura, Shogo, Kishimoto, Tetsuro, Oda, Makoto, Takemura, Taito, Miyamoto, Shohei, Miuchi, Kentaro, Sawano, Tatsuya, and Kurosawa, Shunsuke

Abstract

会議情報: 第15回宇宙科学シンポジウム (2015年1月6日-7日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県, 著者人数: 20名, Meeting Information: 15th Space Science Symposium (January 6-7, 2015. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency(JAXA)(ISAS)Sagamihara Campus), Sagamihara, Kanagawa Japan

Published
2015

39. Muonium in Stishovite: Implications for the Possible Existence of Neutral Atomic Hydrogen in the Earth's Deep Mantle

Author

Funamori, Nobumasa, primary, Kojima, Kenji M., additional, Wakabayashi, Daisuke, additional, Sato, Tomoko, additional, Taniguchi, Takashi, additional, Nishiyama, Norimasa, additional, Irifune, Tetsuo, additional, Tomono, Dai, additional, Matsuzaki, Teiichiro, additional, Miyazaki, Masanori, additional, Hiraishi, Masatoshi, additional, Koda, Akihiro, additional, and Kadono, Ryosuke, additional

Published
2015
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41. Transport of Coherent VUV Radiation to Muon U-Line for Ultra Slow Muon Microscope

Author

Nakamura, Jumpei, primary, Oishi, Yu, additional, Saito, Norihito, additional, Miyazaki, Koji, additional, Yokoyama, Koji, additional, Okamura, Kotaro, additional, Makimura, Shunsuke, additional, Miyake, Yasuhiro, additional, Nagatomo, Takashi, additional, Strasser, Patrick, additional, Ikedo, Yutaka, additional, Tomono, Dai, additional, Shimomura, Koichiro, additional, Wada, Satoshi, additional, Kawamura, Naritoshi, additional, Koda, Akihiro, additional, and Nishiyama, Kusuo, additional

Published
2014
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43. The K1.8BR spectrometer system at J-PARC

Author

Agari, Keizo, primary, Ajimura, Shuhei, additional, Beer, George, additional, Bhang, Hyoungchan, additional, Bragadireanu, Mario, additional, Buehler, Paul, additional, Busso, Luigi, additional, Cargnelli, Michael, additional, Choi, Seonho, additional, Curceanu, Catalina, additional, Enomoto, Shun, additional, Faso, Diego, additional, Fujioka, Hiroyuki, additional, Fujiwara, Yuya, additional, Fukuda, Tomokazu, additional, Guaraldo, Carlo, additional, Hashimoto, Tadashi, additional, Hayano, Ryugo S., additional, Hiraiwa, Toshihiko, additional, Hirose, Erina, additional, Ieiri, Masaharu, additional, Iio, Masami, additional, Iliescu, Mihai, additional, Inoue, Kentaro, additional, Ishiguro, Yosuke, additional, Ishikawa, Takashi, additional, Ishimoto, Shigeru, additional, Ishiwatari, Tomoichi, additional, Itahashi, Kenta, additional, Iwai, Masaaki, additional, Iwasaki, Masahiko, additional, Kakiguchi, Yutaka, additional, Katoh, Yohji, additional, Kawasaki, Shingo, additional, Kienle, Paul, additional, Kou, Hiroshi, additional, Ma, Yue, additional, Marton, Johann, additional, Matsuda, Yasuyuki, additional, Minakawa, Michifumi, additional, Mizoi, Yutaka, additional, Morra, Ombretta, additional, Muto, Ryotaro, additional, Nagae, Tomofumi, additional, Naruki, Megumi, additional, Noumi, Hiroyuki, additional, Ohnishi, Hiroaki, additional, Okada, Shinji, additional, Outa, Haruhiko, additional, Piscicchia, Kristian, additional, Lener, Marco Poli, additional, Vidal, Antonio Romero, additional, Sada, Yuta, additional, Sakaguchi, Atsushi, additional, Sakuma, Fuminori, additional, Sato, Masaharu, additional, Sato, Yoshinori, additional, Sawada, Shin'ya, additional, Scordo, Alessandro, additional, Sekimoto, Michiko, additional, Shi, Hexi, additional, Shirakabe, Yoshihisa, additional, Sirghi, Diana, additional, Sirghi, Florin, additional, Suzuki, Ken, additional, Suzuki, Shoji, additional, Suzuki, Takatoshi, additional, Suzuki, Yoshihiro, additional, Takahashi, Hitoshi, additional, Tanaka, Kazuhiro, additional, Tanaka, Nobuaki, additional, Tatsuno, Hideyuki, additional, Tokuda, Makoto, additional, Tomono, Dai, additional, Toyoda, Akihisa, additional, Tsukada, Kyo, additional, Doce, Oton Vazquez, additional, Watanabe, Hiroaki, additional, Widmann, Eberhard, additional, Wünschek, Barbara K., additional, Yamanoi, Yutaka, additional, Yamazaki, Toshimitsu, additional, Yim, Heejoong, additional, and Zmeskal, Johann, additional

Published
2012
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44. Focusing Effect of MeV Muon Beam with a Tapered Capillary Method

Author

Tomono, Dai, primary, M. Kojima, Takao, additional, Ishida, Katsuhiko, additional, Ikeda, Tokihiro, additional, Iwai, Yoshio, additional, Tokuda, Makoto, additional, Kanazawa, Yuu, additional, Matsuda, Yasuyuki, additional, Matsuzaki, Teiichiro, additional, Iwasaki, Masahiko, additional, and Yamazaki, Yasunori, additional

Published
2011
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45. Development of a pipelined data acquisition system for experiments at J-PARC

Author

Suzuki, Soh Yamagata, primary, Tanaka, Manobu, additional, Tauchi, Kazuya, additional, Yasu, Yoshiji, additional, Takeshita, Soshi, additional, Koda, Akihiro, additional, Hiraishi, Masatoshi, additional, Miyazaki, Masanori, additional, Satoh, Kohki, additional, Kadono, Ryosuke, additional, Ishida, Katsuhiko, additional, Tomono, Dai, additional, and Matsuzaki, Teiichiro, additional

Published
2009
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46. Density Enhancement of Muon Beams with Tapered Glass Tubes

Author

M. Kojima, Takao, primary, Tomono, Dai, additional, Ikeda, Tokihiro, additional, Ishida, Katsuhiko, additional, Iwai, Yoshio, additional, Iwasaki, Masahiko, additional, Matsuda, Yasuyuki, additional, Matsuzaki, Teiichiro, additional, and Yamazaki, Yasunori, additional

Published
2007
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47. Deeply bound 1s and 2p pionic states in [sup 205]Pb and effective pion mass in nuclear matter

Author

Geissel, Hans, primary, Gilg, Hansjörg, additional, Gillitzer, Albrecht, additional, Hayano, Ryugo S., additional, Hirenzaki, Satoru, additional, Itahashi, Kenta, additional, Iwasaki, Masahiko, additional, Kienle, Paul, additional, Münch, Matthias, additional, Münzenberg, Gottfried, additional, Schott, Wolfgang, additional, Suzuki, Ken, additional, Tomono, Dai, additional, Weick, Helmut, additional, Yamazaki, Toshimitsu, additional, and Yoneyama, Tetsu, additional

Published
2002
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48. Deeply bound 1s and 2p pionic states in 205Pb and effective pion mass in nuclear matter.

Author

Geissel, Hans, Gilg, Hansjo¨rg, Gillitzer, Albrecht, Hayano, Ryugo S., Hirenzaki, Satoru, Itahashi, Kenta, Iwasaki, Masahiko, Kienle, Paul, Mu¨nch, Matthias, Mu¨nzenberg, Gottfried, Schott, Wolfgang, Suzuki, Ken, Tomono, Dai, Weick, Helmut, Yamazaki, Toshimitsu, and Yoneyama, Tetsu

Subjects
PIONS, ELECTRONIC excitation
Abstract

We have succeeded in observing the is and 2p bound pionic states in [sup 205]Pb nucleus as well separated peaks in the excitation spectrum of the [sup 206]Pb(d, [sup 3]He) reaction. The observed spectrum agreed quite well with the theoretical prediction where the formation cross section was calculated for the deeply bound pionic states. These states are accommodated in proximity to the nuclear surface as halo states in a potential provided by the attractive Coulomb and the repulsive core. The binding energies and the widths were precisely determined, and the values were used to deduce the unknown s-wave part of the π-nucleus interaction and to translate it to the effective pion mass in nuclear matter. [ABSTRACT FROM AUTHOR]

Published
2002

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