Patents by Inventor Yasunobu Arikawa

Yasunobu Arikawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Scintillator for neutron detection and neutron measurement device
    Patent number: 8405034
    Abstract: A neutron measurement apparatus 1A includes a neutron detection unit 10, a photodetection unit 20 that detects scintillation light emitted from the neutron detection unit 10, a light guide optical system 15 that guides the scintillation light from the neutron detection unit 10 to the photodetection unit 20, and a shielding member 30 which is located between the neutron detection unit 10 and the photodetection unit 20 for shielding radiation passing in a direction toward the photodetection unit 20. Further, a scintillator formed of a lithium glass material in which PrF3 is doped to a glass material 20Al(PO3)3-80LiF is used as a neutron detection scintillator composing the neutron detection unit 10. Thereby, the neutron detection scintillator and the neutron measurement apparatus which are capable of suitably performing neutron measurement such as measurement of scattered neutrons from an implosion plasma can be realized.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: March 26, 2013
    Assignees: Osaka University, TOKAI UNIVERSITY Educational System
    Inventors: Hiroshi Azechi, Nobuhiko Sarukura, Yasunobu Arikawa, Mitsuo Nakai, Hirofumi Kan, Takahiro Murata, Toshihisa Suyama, Shigeru Fujino, Yoshiyuki Usuki, Hideki Yoshida, Akira Yoshikawa
  • SCINTILLATOR FOR NEUTRON DETECTION AND NEUTRON MEASUREMENT DEVICE
    Publication number: 20120091351
    Abstract: A neutron measurement apparatus 1A includes a neutron detection unit 10, a photodetection unit 20 that detects scintillation light emitted from the neutron detection unit 10, a light guide optical system 15 that guides the scintillation light from the neutron detection unit 10 to the photodetection unit 20, and a shielding member 30 which is located between the neutron detection unit 10 and the photodetection unit 20 for shielding radiation passing in a direction toward the photodetection unit 20. Further, a scintillator formed of a lithium glass material in which PrF3 is doped to a glass material 20Al(PO3)3-80LiF is used as a neutron detection scintillator composing the neutron detection unit 10. Thereby, the neutron detection scintillator and the neutron measurement apparatus which are capable of suitably performing neutron measurement such as measurement of scattered neutrons from an implosion plasma can be realized.
    Type: Application
    Filed: April 27, 2010
    Publication date: April 19, 2012
    Applicants: OSAKA UNIVERSITY, TOKAI UNIVERSITY EDUCATIONAL SYSTEM, HAMAMATSU PHOTONICS K.K., FURUKAWA CO., LTD, NAGASAKI PREFECTURAL GOVERNMENT, TOKUYAMA CORPORATION
    Inventors: Hiroshi Azechi, Nobuhiko Sarukura, Yasunobu Arikawa, Mitsuo Nakai, Hirofumi Kan, Takahiro Murata, Toshihisa Suyama, Shigeru Fujino, Yoshiyuki Usuki, Hideki Yoshida, Akira Yoshikawa