Title:
中性子検出器
Document Type and Number:
Japanese Patent JP6953902
Kind Code:
B2
Abstract:
To provide a neutron detector capable of enhancing n/γ discrimination by suppressing neutron signals from being buried by signals caused by fluorescence in the wavelength-shifted fiber by gamma rays and the Cerenkov light in the optical fiber.SOLUTION: A typical configuration of a neutron detector in an embodiment, comprises: a neutron scintillator including a fluorescent body which fluorescent by neutron; an optical fiber for transmitting light emitted from the fluorescent body; a photomultiplier tube for converting the light into electrical pulses; and a low pass filter which allows pulses caused from fluorescence light emitted from the fluorescent body to pass and reduces the pulses of high frequency caused from gamma ray from the electric pulses.SELECTED DRAWING: Figure 3
Inventors:
Yoichi Sakuragi
Keiichi Yoshikawa
Akifumi Koike
Okunoyama Ryuji
Katsuyuki Miyagi
Toru Aoki
Keiichi Yoshikawa
Akifumi Koike
Okunoyama Ryuji
Katsuyuki Miyagi
Toru Aoki
Application Number:
JP2017163912A
Publication Date:
October 27, 2021
Filing Date:
August 29, 2017
Export Citation:
Assignee:
TEPCO Holdings Co., Ltd.
International Classes:
G01T3/06; G01T1/00; G01T3/00
Domestic Patent References:
| JP2014228401A | ||||
| JP2012026996A | ||||
| JP2013181766A | ||||
| JP2009036752A | ||||
| JP2007187682A |
Attorney, Agent or Firm:
Kosuke Tobita
Daisuke Suzuki
Patent business corporation aqua patent office
Daisuke Suzuki
Patent business corporation aqua patent office