Title :
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
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;
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
DOI :
10.1109/ANIMMA.2013.6728078
