极大体积(>200cm~3)同轴HPGe探测器的研制及其特性
DEVELOPMENT OF AN EXTRMELY LARGE VOLUME (>200cm~3) COAXIAL HPGe DETECTOR AND CHARACTERIZATION
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摘要: 文章叙述了极大体积(～220cm~3)同轴HPGe探测器的研制及其性能。分析了各种因素对探测器系统分辨率的影响。探测器对~(60)Co的1.33MeVγ射线,能量分辨率 FWHM=2.30±0.02keV,相对效率η=44.56％,峰对称性FW(1/10M)/FWHM=1.90;对2.60MeVγ射线,FWHM=3.10 keV。Abstract: This pape describes fabrication of an extremely large volume (～220cm~3) HPGecoaxial detector and its characterization. The various factors of contributions todetector reselution were analysed. For ~(60)Co-1.33 MeV γ-ray, detector resolutionFWHM=2.30±0.02keV, relative efficiency η=44.56%, the symmetry of peakFWTM/FWHM=1.90. For 2.60MeV γ-ray, the detector rcsolution FWHM=3.10keV.
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