An experimental characterisation of a Broad Energy Germanium detector
An experimental characterisation of a Broad Energy Germanium detector
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DOI：
10.1016/j.nima.2014.05.080
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发表时间：
2014-10
影响因子：
1.4
通讯作者：
L. Harkness-Brennan;D. Judson;A. Boston;H. Boston;S. Colosimo;J. Cresswell;P. Nolan;A. Adekola;J. Colaresi;J. Cocks;W. Mueller
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文献类型：
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作者：
L. Harkness-Brennan;D. Judson;A. Boston;H. Boston;S. Colosimo;J. Cresswell;P. Nolan;A. Adekola;J. Colaresi;J. Cocks;W. Mueller
对BE2825宽能锗探测器的光谱和电荷收集性能进行了实验研究。探测器的效率和能量分辨率作为能量的函数进行了测量，并确定了噪声对探测器信号的贡献。准直伽马射线源安装在一个自动的3轴扫描工作台上已被用来研究的γ射线相互作用的位置在探测器中的γ射线的信号形状的变化，使位置相关的电荷收集过程的特点。一套实验测量也进行了调查作为偏置电压的函数的检测器的性能，我们报告的异常行为时观察到的检测器接近耗尽电压操作。
The spectroscopic and charge collection performance of a BE2825 Broad Energy Germanium (BEGe) detector has been experimentally investigated. The efficiency and energy resolution of the detector have been measured as a function of energy and the noise contributions to the preamplifier signal have been determined. Collimated gamma-ray sources mounted on an automated 3-axis scanning table have been used to study the variation in preamplifier signal shape with gamma-ray interaction position in the detector, so that the position-dependent charge collection process could be characterised. A suite of experimental measurements have also been undertaken to investigate the performance of the detector as a function of bias voltage and we report on anomalous behaviour observed when the detector was operating close to the depletion voltage.