Development of High-Resolution Scintillator Systems

Larry A. Franks ; Warnick J. Kernan

关键词: DETECTION;    EFFICIENCY;    ELECTRONS;    IODIDES;    SPECTRAL RESPONSE;    THICKNESS;    TRAPPING Areal radiological emergency response;   

DOI  :  10.2172/917720
RP-ID  :  DOE/NV/25946--292
PID  :  OSTI ID: 917720
Others  :  TRN: US0805101

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

Mercuric iodide (HgI2) is a well known material for the direct detection of gamma-rays; however, the largest volume achievable is limited by the thickness of the detector which needs to be a small fraction of the average trapping length for electrons. We report results of using HgI2 crystals to fabricate photocells used in the readout of scintillators. The optical spectral response and efficiency of these photocells were measured and will be reported. Nuclear response from an HgI2 photocell that was optically matched to a cerium-activated scintillator is presented and discussed. Further improvements can be expected by optimizing the transparent contact technology.