Influence of sampling properties of fast-waveform digitizers on neutron - gamma-ray, pulse-shape discrimination for organic scintillation detectors
Influence of sampling properties of fast-waveform digitizers on neutron - gamma-ray, pulse-shape discrimination for organic scintillation detectors
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DOI：
10.1016/j.nima.2013.07.008
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发表时间：
2013-11-21
影响因子：
1.4
通讯作者：
Pozzi, Sara A.
中科院分区：
文献类型：
--
作者：
Flaska, Marek;Faisal, Muhammad;Pozzi, Sara A.
关于基于有机闪烁体的数字脉冲形状识别（PSD）系统，需要回答的最重要的问题之一是，在需要精确的PSD的同时，用于数字化中子/伽马射线脉冲的快速波形数字化仪需要什么样的采样特性？这个问题是本文的主要目的。具体来说，本文描述了波形数字化仪的分辨率和采样频率对有机闪烁体PSD性能的影响。本文的结果旨在帮助读者选择合适的位分辨率和采样频率的波形数字化仪。本文给出的结果表明，一个12位的。对于需要良好PSD性能的应用，250-MHz数字化仪是一个很好的选择。然而，当更精确的PSD性能是主要要求时，本文提出了可取的PSD数字，以确定进一步提高采样频率或数字化仪分辨率的影响。(C) 2013 Elsevier B.V.版权所有
One of the most important questions to be answered with regard to digital pulse shape discrimination (PSD) systems based on organic scintillators is What sampling properties are required for a fastwaveform digitizer used for digitizing neutron/gamma-ray pulses, while an accurate PSD is desired? AnswerMg this question is the main objective of this paper. Specifically, the paper describes the influence of the resolution and sampling frequency of a waveform digitizer on the PSD performance of organic scintillators. The results presented in this paper are meant to help the reader choosing a waveform digitizer with appropriate bit resolution and sampling frequency. The results presented here show that a 12-bit. 250-MHz digitizer is a good choice for applications that require good PSD performance. However, when more accurate PSD performance is the main requirement, this paper presents PSD figures of merit to qualify the impact of further increasing either sampling frequency or resolution of the digitizer. (C) 2013 Elsevier B.V. All rights reserved.