Title :
Responses of directional gamma ray scintillation detectors for searching radioactive materials
Author_Institution :
National Inst. of Radiol. Sci., Chiba, Japan
Abstract :
The proposed detector, which units a NaI(TI) scintillator, a same-shaped BGO scintillator with a photomultiplier tube, positively increases directional sensitivity to incident gamma rays and has a possibility of measuring directions of gamma rays, and searching radioactive materials. Prototypes have been designed and examined by laboratory tests. It is shown that the detector with scintillators of 25 mm in diameter by 50 mm in length has the sufficient sensitivity to meet the requirement.
Keywords :
gamma-ray apparatus; gamma-rays; photomultipliers; solid scintillation detectors; 25 mm; 50 mm; directional gamma ray scintillation detectors; directional sensitivity; photomultiplier tube; radioactive materials;
Conference_Titel :
SICE 2003 Annual Conference
Conference_Location :
Fukui, Japan
Print_ISBN :
0-7803-8352-4
