Position sensitivity of the TIGRESS 32-fold segmented HPGe clover detector
Position sensitivity of the TIGRESS 32-fold segmented HPGe clover detector
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TIGRESS 32 倍分段 HPGe 三叶草探测器的位置灵敏度
DOI：
10.1016/j.nima.2004.11.031
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发表时间：
2005
影响因子：
1.4
通讯作者：
L. M. Watters
中科院分区：
文献类型：
--
作者：
C. Svensson;G. Hackman;C. Pearson;M. Schumaker;H. C. Scraggs;M. Smith;C. Andreoiu;A. Andreyev;R. Austin;G. Ball;A. Boston;R. Chakrawarthy;R. Churchman;N. Cowan;T. Drake;P. Finlay;P. Garrett;G. Grinyer;B. Hyland;B. Jones;J. Martin;A. C. Morton;A. Phillips;R. Roy;F. Sarazin;N. Starinsky;J. Valiente;J. C. Waddington;L. M. Watters
通过对来自准直Cs ~（137）源的661.6keVγ射线的90 μ m康普顿散射，研究了32节三叶草型HPGe探测器对γ射线相互作用位置的灵敏度。通过比较1007对三维局部相互作用点的净电荷收集信号以及相邻触点中的瞬态感应信号的平均脉冲形状，推导出在373 keV能量下的平均位置灵敏度为0.44mm。提出了基于与测量的基础波形组的χ 2比较的单个事件位置的重建。
Sensitivity to the locations of γ-ray interactions within a 32-fold segmented clover-type HPGe detector has been investigated through 90∘Compton scattering of 661.6keVγ-rays from a collimated Cs137 source. A mean position sensitivity of 0.44mm at an energy of 373keV is deduced by comparing the average pulse shapes for net charge collecting signals, as well as transient induced signals in neighbouring contacts, from 1007 pairs of three-dimensionally localized interaction points. The reconstruction of individual event locations based on a χ2comparison with the measured set of basis waveforms is presented.