多像素光子计数器的能量分辨性能测试

柴林; 王涵; 吴佳玲; 屈卫卫; 文万信; 张高龙

doi:10.11889/j.0253-3219.2018.hjs.41.090403

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多像素光子计数器的能量分辨性能测试

核电子学与仪器 | 更新时间：2021-05-19

- 多像素光子计数器的能量分辨性能测试
- Energy resolution performance testing for mulit-pixel photon counter
- 核技术 2018年41卷第9期文章编号：090403
- 作者机构：
  
  1.苏州大学放射医学与辐射防护国家重点实验室苏州 215123
  2.苏州大学医学部放射医学与防护学院苏州 215123
  3.江苏省高校放射医学协同创新中心苏州 215123
  4.北京航空航天大学物理科学与核能工程学院北京 100191
- 作者简介：
  
  [ "柴林, 男, 1989年出生, 2012年毕业于吉林医药学院, 现为硕士研究生, 研究领域为医学物理剂量计算及测量", "CHAI Lin, male, born in 1989, graduated from Jilin Medical University in 2012, master student, focusing on dose calculation and measurement in medical physics" ]
  屈卫卫, E-mail:wwqu@suda.edu.cn QU Weiwei, E-mail: wwqu@suda.edu.cn
- 基金信息：
  
  国家重大科学仪器专项子项(2013YQ04086102);国家自然科学基金青年基金项目(11705123);江苏省自然科学基金青年项目(BK20160306);国家博后基金面上项目(2016M591911)
- DOI：10.11889/j.0253-3219.2018.hjs.41.090403
  中图分类号： O571.1;TL812.1
- 收稿日期：2018-05-21，
  
  修回日期：2018-07-08，
  
  纸质出版日期：2018-09
- 稿件说明：
移动端阅览
柴林, 王涵, 吴佳玲, 等. 多像素光子计数器的能量分辨性能测试[J]. 核技术, 2018,41(9):090403

Lin CHAI, Han WANG, Jialing WU, et al. Energy resolution performance testing for mulit-pixel photon counter[J]. Nuclear techniques, 2018, 41(9): 090403
柴林, 王涵, 吴佳玲, 等. 多像素光子计数器的能量分辨性能测试[J]. 核技术, 2018,41(9):090403 DOI： 10.11889/j.0253-3219.2018.hjs.41.090403.

Lin CHAI, Han WANG, Jialing WU, et al. Energy resolution performance testing for mulit-pixel photon counter[J]. Nuclear techniques, 2018, 41(9): 090403 DOI： 10.11889/j.0253-3219.2018.hjs.41.090403.

摘要

随着新型光电转换器件技术的快速发展，多像素光子计数器（Multi Pixel Photon Counter，MPPC）逐渐被应用到核辐射探测等相关领域。本文将MPPC分别与碘化铯（CsI）、碘化钠（NaI）以及锗酸铋（Bi

，BGO）闪烁晶体进行光学耦合，测量

137

Cs、

Co两种γ射线放射源的三个特征峰的能谱，测试结果与光电倍增管（Hamamatsu H7195）和闪烁晶体耦合所测得的结果进行了对比。此外，用自制的前置放大器与波形数字采样器（CAEN DT5730）对MPPC的输出信号进行了采集测试。结果表明：MPPC相比于光电倍增管，其能量分辨率稍差，但是具有相当的能量线性。

Abstract

Background

With the development of semiconductor photon detector technology

a novel signal readout device named multi pixel photon counter (MPPC) has gradually been developed and applied in radiation detection.

Purpose

This study aims to verify the performance of the MPPC and compare it with photomultiplier tube (PMT) in linearity and energy resolution.

Methods

First of all

scintillation detectors with MPPC coupling with scintillation crystals such as thallium-doped sodium iodide (NaI(Tl))

CsI

and Bi

(BGO) crystals was constructed to test three characteristic γ-ray energy peaks of

137

Cs and

Co. Then the same tests were done with PMT (Hamamatsu H7195) coupling with these crystals as the parallel experiments. Simultaneously

the output signal of the MPPC was collected by using a waveform digitizer (CAEN DT5730) and a self-made pre-amplifier.

Results

The results show that the MPPC has a slightly worse energy resolution compared to that of PMT

but reserves a similar energy linearity.

Conclusion

This MPPC could be applied in circumstances such as the space detection and medical applications instead of PMT.

关键词

Keywords

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