Title:
γ-RAY MEASUREMENT METHOD AND γ-RAY MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/060379
Kind Code:
A1
Abstract:
The present invention provides γ-ray measurement technology with which it is possible to highly accurately measure and display, on the spot and in real time, both the γ-ray dose and energy spectrum, and also possible to increase the awareness of radiation workers regarding radiation exposure by downsizing and facilitating wearing of such technology. This γ-ray measurement method simultaneously measures the γ-ray dose and energy spectrum, said method comprising: an energy spectrum creation step in which a bayesian inference method is used to create an energy spectrum on the basis of γ-ray intensity data detected by a detection unit; and a dose calculation step in which the created energy spectrum is multiplied by a dose conversion factor to calculate the dose. The bayesian inference method at the energy spectrum creation step is a sequential bayesian inference method, and an α value indicating the degree of correction is defined on the basis of the number of counts and a reduction index.
More Like This:
Inventors:
MURATA ISAO (JP)
SATO FUMINOBU (JP)
TAMAKI SHINGO (JP)
KUSAKA SACHIE (JP)
SATO FUMINOBU (JP)
TAMAKI SHINGO (JP)
KUSAKA SACHIE (JP)
Application Number:
PCT/JP2020/036042
Publication Date:
April 01, 2021
Filing Date:
September 24, 2020
Export Citation:
Assignee:
UNIV OSAKA (JP)
International Classes:
G01T1/00; G01T1/02; G01T1/169; G01T1/17; G01T1/20; G01T1/202; G01T1/36
Foreign References:
| JP2015501928A | 2015-01-19 | |||
| US20180059259A1 | 2018-03-01 | |||
| JP2013527433A | 2013-06-27 | |||
| JP2015204985A | 2015-11-19 |
Attorney, Agent or Firm:
JODAI Tetsuji et al. (JP)
Download PDF: