Title:
放射能濃度測定装置及び放射能濃度測定方法
Document Type and Number:
Japanese Patent JP6709490
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a radioactive concentration measurement device capable of accurately measuring the radioactive concentration of a radionuclide in a short time.SOLUTION: A radioactive concentration measurement device includes: a radiation detector 13 arranged substantially in the center within a radioactive measuring part 12; storage means 31 for storing a response function for a radioactive nuclide calculated in advance; and radioactive concentration calculation means 30 for calculating a radioactive concentration of the radioactive nuclide from a detected γ-ray spectrum. D (the minimum distance between the inner wall surface of the radioactive measurement part and the radioactive detector)>L (the shielding distance by the self-shield effect of an amount of radiation from the radioactive nuclide in a measurement specimen) is satisfied, and the radioactive concentration calculation means 30 calculates the radioactive concentration by applying curve approximation to the detected γ-ray spectrum using a response function of the radioactive nuclide stored in the storage means 31.SELECTED DRAWING: Figure 5
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Inventors:
Koji Okagi
Endo Akatsuki
Kenichi Tanaka
Kajimoto Go
Hiroaki Kai
Endo Akatsuki
Kenichi Tanaka
Kajimoto Go
Hiroaki Kai
Application Number:
JP2016043711A
Publication Date:
June 17, 2020
Filing Date:
March 07, 2016
Export Citation:
Assignee:
Kitagawa Iron Works Co., Ltd.
Hiroshima University
Hiroshima University
International Classes:
G01T1/167; G01T1/20; G01T1/36
Domestic Patent References:
| JP5716231B2 | ||||
| JP63173987A | ||||
| JP2008511009A | ||||
| JP2014066518A | ||||
| JP2014219280A | ||||
| JP2015031675A | ||||
| JP2015166727A |
Foreign References:
| US20080011962 |
Attorney, Agent or Firm:
Maeda patent office