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Featured researches published by Hideki Morii.


Japanese Journal of Applied Physics | 2011

Development of a Neutral Beam Profile Monitor

Goh Takahashi; Kwang Yun Baek; N. Kawasaki; T. K. Komatsubara; Gei Youb Lim; Y. Maeda; T. Masuda; Hideki Morii; D. Naito; H. Nanjo; Tadashi Nomura; Noboru Sasao; Kazufumi Sato; Tetsushi Shimogawa; Kouji Shiomi; Y. Tajima; Hiroaki Watanabe; Taku Yamanaka

We developed a novel beam profile monitor for measuring the shape of an intense neutral beam for particle physics. This monitor is based on a detector technology of scintillating fibers, photomultiplier tubes, and sampling ADCs. It has an advantage for its simplicity, reliability, flexibility, and versatility. This monitor was installed in the small-diameter neutral beam for the KL0 →π0 νν experiment at J-PARC. We report in this article the development and performance of this monitor.


Progress of Theoretical and Experimental Physics | 2015

An aerogel Cherenkov detector for multi-GeV photon detection with low sensitivity to neutrons

Y. Maeda; N. Kawasaki; T. Masuda; Hideki Morii; D. Naito; Y. Nakajima; H. Nanjo; T. Nomura; Noboru Sasao; S. Seki; K. Shiomi; T. Sumida; Y. Tajima

We describe a novel photon detector which operates under an intense flux of neutrons. It is composed of lead-aerogel sandwich counter modules. Its salient features are high photon detection efficiency and blindness to neutrons. As a result of Monte Carlo (MC) simulations, the efficiency for photons with the energy larger than 1 GeV is expected to be higher than 99.5% and that for 2 GeV/


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2004

Quenching effects in nitrogen gas scintillation

Hideki Morii; Kentaro Mizouchi; T. Nomura; Noboru Sasao; T. Sumida; Masaaki Kobayashi; Yoshiyuki Murayama; R. Takashima

c


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2008

Barrel photon detector of the KEK KL0→π0νν¯ experiment

Y. Tajima; Jung Keun Ahn; Y. Akune; Y. Aruga; M. Doroshenko; Y. Hsiung; A. Iijima; Y. Ikemoto; T. Inagaki; S. Ishibashi; N. Ishihara; H. Ishii; M. Itaya; M. Iwai; T. Iwata; S. Kobayashi; S. Komatsu; T. K. Komatsubara; A. S. Kurilin; H. S. Lee; S. Y. Lee; G. Y. Lim; Toshiro Matsumura; T. Mizuhashi; Hideki Morii; T. Morimoto; T. Nomura; N. Nishi; J. Nix; H. Okuno

neutrons less than 1%. The performance on the photon detection under such a large flux of neutrons was measured for a part of the detector. It was confirmed that the efficiency to photons with the energy


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2008

Barrel photon detector of the KEK KL0-->pinunu experiment

Y. Tajima; Jung Keun Ahn; Yasuhiro Akune; Y. Aruga; M. Yu. Doroshenko; Y.B. Hsiung; A. Iijima; Y. Ikemoto; T. Inagaki; S. Ishibashi; N. Ishihara; H. Ishii; M. Itaya; M. Iwai; Tadahisa Iwata; Satoru Kobayashi; S. Komatsu; T. Komatsubara; A. S. Kurilin; Hyuk Lee; Schuyler Lee; G. Y. Lim; Toshiro Matsumura; T. Mizuhashi; Hideki Morii; T. Morimoto; Takashi Nomura; N. Nishi; J. Rayford Nix; Hideki Okuno

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Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2008

Barrel photon detector of the KEK K L 0 ? p 0 ? ? experiment

Y. Tajima; Jung Keun Ahn; Yasuhiro Akune; Y. Aruga; M. Yu. Doroshenko; Y.B. Hsiung; A. Iijima; Y. Ikemoto; T. Inagaki; S. Ishibashi; N. Ishihara; H. Ishii; M. Itaya; M. Iwai; Tadahisa Iwata; Satoru Kobayashi; S. Komatsu; T. K. Komatsubara; A. S. Kurilin; Hyuk Lee; Schuyler Lee; G. Y. Lim; Toshiro Matsumura; T. Mizuhashi; Hideki Morii; T. Morimoto; Takashi Nomura; N. Nishi; J. Rayford Nix; Hideki Okuno

1 GeV was consistent with the MC expectation within 8.2% uncertainty.


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2008

Barrel photon detector of the KEK K L 0 → π 0 ν over(ν, -) experiment

Y. Tajima; Jung Keun Ahn; Y. Akune; Y. Aruga; M. Doroshenko; Y. Hsiung; A. Iijima; Y. Ikemoto; T. Inagaki; S. Ishibashi; N. Ishihara; H. Ishii; M. Itaya; M. Iwai; T. Iwata; S. Kobayashi; S. Komatsu; T. Komatsubara; A. S. Kurilin; H. S. Lee; S. Y. Lee; G. Y. Lim; T. Matsumura; T. Mizuhashi; Hideki Morii; T. Morimoto; T. Nomura; N. Nishi; J. Nix; Hideki Okuno


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2008

Barrel photon detector of the KEK experiment

Y. Tajima; Jung Keun Ahn; Y. Akune; Y. Aruga; M. Doroshenko; Y. Hsiung; A. Iijima; Y. Ikemoto; T. Inagaki; S. Ishibashi; N. Ishihara; H. Ishii; M. Itaya; M. Iwai; T. Iwata; S. Kobayashi; S. Komatsu; T. Komatsubara; A. S. Kurilin; H. S. Lee; S. Y. Lee; G. Y. Lim; Toshiro Matsumura; T. Mizuhashi; Hideki Morii; T. Morimoto; T. Nomura; N. Nishi; J. Nix; Hideki Okuno


Meeting abstracts of the Physical Society of Japan | 2005

24pWJ-5 Study of basic parameters of high efficiency plioto detector for KOPIO

Nanae Taniguchi; Noboru Sasao; T. Nomura; Kentarou Mizouchi; T. Sumida; Hideki Morii; Hirokazu Yokoyama; Takeo Shirai; Yasuhiro Nakajima; R. Takashima; Makoto Kobayashi; T. Taniguchi


Japanese Journal of Physical Fitness and Sports Medicine | 1993

EFFECTS OF HYPOXIC EXPOSURE AND ENDURANCE EXERCISE TRAINING ON THE OXIDATIVE POTENTIALS OF SOLEUS MUSCLE FIBERS AND MOTONEURONS IN THE RAT

Hideki Morii; S. Yamasaki; Hiroshi Okamoto; Akihiko Ishihara; Sadayoshi Taguchi

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