Development of omnidirectional gamma-imager with stacked scintillators

Author

Takahashi, Tatsuro ; Kawarabayashi, J. ; Tomita, Hiroki ; Iguchi, Toshio ; Takada, E.

Author_Institution

Grad. Sch. of Eng., Nagoya Univ., Nagoya, Japan

fYear

2013

fDate

23-27 June 2013

Firstpage

1

Lastpage

4

Abstract

In the severe accident at nuclear power plant, a rapid measurement of radioactive fallout is required. So we have developed a Compton imager with high efficiency and omnidirectional sensitivity. Three dimensional position resolutions were evaluated about several kinds of scintillators. The all-directional imaging was demonstrated by the simulation of detection of ¹³⁷Cs point source. Imaging quality with angle resolution of 28° and detection efficiency of 1.1% was estimated.

Keywords

fission reactor accidents; gamma-ray apparatus; nuclear power stations; radioactive sources; scintillation counters; ¹³⁷Cs point source; Compton imager; all-directional imaging; nuclear power plant; omnidirectional gamma-imager; omnidirectional sensitivity; radioactive fallout; severe accident; stacked scintillators; three-dimensional position resolutions; Detectors; Energy resolution; Gamma-rays; Image resolution; Photonics; Compton imager; Gamma-ray imaging; Severe accident;

fLanguage

English

Publisher

ieee

Conference_Titel

Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA), 2013 3rd International Conference on

Conference_Location

Marseille

Print_ISBN

978-1-4799-1046-5

Type

conf

DOI

10.1109/ANIMMA.2013.6728078

Filename

6728078