Design of digital multi-channel spectrometer based on auto-baseline restoration

Wei CHEN; Jianbin ZHOU; Fang FANG; Xu HONG; Xiang ZHAO; Wei ZHOU; Yingjie MA

doi:10.11889/j.0253-3219.2018.hjs.41.050401

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Design of digital multi-channel spectrometer based on auto-baseline restoration

NUCLEAR ELECTRONICS AND INSTRUMENTATION | 更新时间：2021-05-19

- Design of digital multi-channel spectrometer based on auto-baseline restoration
- NUCLEAR TECHNIQUES Vol. 41, Issue 5, Article number: 050401(2018)
- 作者机构：
  
  1.成都理工大学核技术与自动化工程学院成都 610059
  2.成都航空职业技术学院信息工程学院成都 610100
- 作者简介：
- 基金信息：
  
  the National Key Research and Development Program of China;National Natural Science Foundation of China;National Natural Science Foundation of China
- DOI：10.11889/j.0253-3219.2018.hjs.41.050401
  CLC： TL822.4
- Received：25 May 2017，
  
  Revised：10 August 2017，
  
  Published：10 May 2018
- 稿件说明：
移动端阅览
Wei CHEN, Jianbin ZHOU, Fang FANG, et al. Design of digital multi-channel spectrometer based on auto-baseline restoration[J]. Nuclear techniques, 2018, 41(5): 050401
DOI：

Wei CHEN, Jianbin ZHOU, Fang FANG, et al. Design of digital multi-channel spectrometer based on auto-baseline restoration[J]. Nuclear techniques, 2018, 41(5): 050401 DOI： 10.11889/j.0253-3219.2018.hjs.41.050401.

摘要

不同放射性强度的测量应用中，探测器输出核脉冲信号的基线将发生漂移，进而造成多道能谱仪的谱线漂移和能量分辨率损失。尽管采用数字基线估计方法可以对核脉冲信号的基线进行正确估计，但纯数字基线恢复算法无法有效处理核脉冲信号基线漂移对前端电路的影响。采用最小平均值基线估计方法，先在现场可编程门阵列（Field-Programmable Gate Array，FPGA）中进行数字基线估计；然后通过SPI总线将基线估计值传入微控制器（Micro-Controller Unit，MCU），MCU根据基线值判断是否进行基线调节，将基线估计值传入数模转换器（Digital-to-analog Converter，DAC）；最后在前端电路中实现核脉冲信号的基线恢复。基于LaBr

（Ce）探测器的测试结果表明：采用该基线自动恢复技术的数字化多道能谱仪能够实现核脉冲信号的基线自动恢复。在高放射性测量条件下，测量系统能够解决因基线漂移引起的谱线漂移问题，使系统能量分辨率保持稳定。

Abstract

Background

The baseline drift of detector output could result in spectrum drift and energy resolution loss of the multi-channel spectrometer. Though baseline estimation approaches can obtain the baseline of nuclear signals

they are not able to reduce the effect of baseline drift on the front-end circuit.

Purpose

This study aims to design and implement a multi-channel spectrometer with auto-baseline restoration functionality.

Methods

First of all

the baseline of detector's output is estimated by using minimum average method and implemented in the field-programmable gate array (FPGA). Then the estimation value is sent to micro-controller unit (MCU) for regulation condition judgment

and to digital-to-analog converter (DAC) for necessary baseline adjustment. Finally

the baseline of detector output is restored in the front-end circuit. A multi-channel spectrometer is designed based on LaBr

(Ce) detector and this auto-baseline restoration functionality.

Results

The experimental results imply that the designed multi-channel spectrometer can realize baseline restoration automatically.

Conclusion

Under the situation of high radioactivity

the baseline drift of detector output can be solved by this multi-channel spectrometer

and the energy resolution of the system can remain stable.

关键词

Keywords

references

J B Sim es , C Correia . Pulse processing architectures . Nuclear Instruments & Methods in Physics Research , 1999 . 422 ( 1-3 ): 405 - 410 . DOI: 10.1016/S0168-9002(98)00992-9 http://doi.org/10.1016/S0168-9002(98)00992-9 .

陈亮. 核素识别算法及数字化能谱采集系统研究[D]. 北京: 清华大学, 2009. http://cn.bing.com/academic/profile?id=8e7906b9edc0aed5784bcfe1b852dbcc&encoded=0&v=paper_preview&mkt=zh-cn

CHEN Liang. Nuclide identification algorithm and digital spectra acquisition system[D]. Beijing: Tsinghua University, 2009.

R Abbiati , E Gatti , A Geraci . A new digital estimation technique for baseline restoration . Nuclear Instruments & Methods in Physics Research A , 2005 . 548 ( 3 ): 507 - 516 . DOI: 10.1016/j.nima.2005.04.072 http://doi.org/10.1016/j.nima.2005.04.072 .

A Geraci , I Rech , E Gatti . Shared baseline restoration at minimum noise for high resolution spectroscopy . Nuclear Instruments and Methods in Physics Research A , 2002 . 482 ( 1-2 ): 441 - 448 . DOI: 10.1016/S0168-9002(01)01509-1 http://doi.org/10.1016/S0168-9002(01)01509-1 .

张同锋 , 方方 , 王敏 , . 核辐射脉冲幅度分析的基线自适应Kalman滤波估计 . 核电子学与探测技术 , 2012 . 32 ( 2 ): 203 - 206 . DOI: 10.3969/j.issn.0258-0934.2012.02.020 http://doi.org/10.3969/j.issn.0258-0934.2012.02.020 .

Tongfeng ZHANG , Fang FANG , Min WANG . Baseline adaptive Kalman filter estimation method for nuclear radiation pulse height analysis . Nuclear Electronics & Detection Technology , 2012 . 32 ( 2 ): 203 - 206 . DOI: 10.3969/j.issn.0258-0934.2012.02.020 http://doi.org/10.3969/j.issn.0258-0934.2012.02.020 .

肖无云 , 魏义祥 , 艾宪芸 . 多道脉冲幅度分析中的数字基线估计方法 . 核电子学与探测技术 , 2005 . 25 ( 6 ): 601 - 604 . https://www.wenkuxiazai.com/doc/5adb4f5277232f60ddcca1b3.html .

Wuyun XIAO , Yixiang WEI , Xianyun AI . Digital baseline estimation method for multi-channel pulse height analyzing . Nuclear Electronics & Detection Technology , 2005 . 25 ( 6 ): 601 - 604 . https://www.wenkuxiazai.com/doc/5adb4f5277232f60ddcca1b3.html .

A Geraci , A Pullia , G Ripamonti . Quasi-optimum gamma and X spectroscopy based on real-time digital techniques . Nuclear Instruments & Methods in Physics Research A , 2000 . 439 ( 2 ): 378 - 384 . DOI: 10.1016/S0168-9002(99)00897-9 http://doi.org/10.1016/S0168-9002(99)00897-9 .

李彦波 , 李朝海 , 何子述 , . DMCA中基于补偿最小二乘法的基线估计算法 . 核电子学与探测技术 , 2014 . 34 ( 8 ): 991 - 994 . DOI: 10.3969/j.issn.0258-0934.2014.08.017 http://doi.org/10.3969/j.issn.0258-0934.2014.08.017 .

Yanbo LI , Chaohai LI , Zishu HE . A baseline estimation algorithm based on penalized least squares in DMCA . Nuclear Electronics & Detection Technology , 2014 . 34 ( 8 ): 991 - 994 . DOI: 10.3969/j.issn.0258-0934.2014.08.017 http://doi.org/10.3969/j.issn.0258-0934.2014.08.017 .

M Kafaee , A Moussavi-Zarandi . Baseline restoration and pile-up correction based on bipolar cusp-like shaping for high-resolution radiation spectroscopy . Journal of the Korean Physical Societ , 2016 . 68 ( 8 ): 960 - 964 . DOI: 10.3938/jkps.68.960 http://doi.org/10.3938/jkps.68.960 .

李伟男 , 杨朝文 , 周荣 . 基于FPGA脉冲幅度分析器的数字化基线估计方法 . 核技术 , 2015 . 38 ( 6 ): 060403 DOI: 10.11889/j.0253-3219.2015.hjs.38.060403 http://doi.org/10.11889/j.0253-3219.2015.hjs.38.060403 http://www.j.sinap.ac.cn/hejishu/CN/abstract/abstract432.shtml .

Weinan LI , Chaowen YANG , Rong ZHOU . Baseline estimation method of digital multi-channel pulse height analyzer based on FPGA . Nuclear Techniques , 2015 . 38 ( 6 ): 060403 DOI: 10.11889/j.0253-3219.2015.hjs.38.060403 http://doi.org/10.11889/j.0253-3219.2015.hjs.38.060403 http://www.j.sinap.ac.cn/hejishu/CN/abstract/abstract432.shtml .

梁卫平 , 胡颖睿 , 肖无云 , . 数字化多道脉冲幅度分析器调理电路设计 . 核电子学与探测技术 , 2012 . 32 ( 4 ): 462 - 465 . DOI: 10.3969/j.issn.0258-0934.2012.04.021 http://doi.org/10.3969/j.issn.0258-0934.2012.04.021 .

Weiping LIANG , Yingrui HU , Wuyun XIAO . Digital multi-channel pulse height analyze pre-filter circuit design . Nuclear Electronics & Detection Technology , 2012 . 32 ( 4 ): 462 - 465 . DOI: 10.3969/j.issn.0258-0934.2012.04.021 http://doi.org/10.3969/j.issn.0258-0934.2012.04.021 .

钱建复 , 沈庭云 . 核辐射剂量学 , : 北京国防工业出版社 , 2009 . 161 - 193 .

Jianfu QIAN , Tingyun SHEN . Nuclear radiation dosimetry , : Beijing National Defense Industry Press , 2009 . 161 - 193 .

曹忠 , 黄正德 , 陈群 . 高计数率下闪烁体-光电倍增管系统增益的稳定 . 核技术 , 1990 . 13 ( 2 ): 85 - 90 . http://www.cnki.com.cn/Article/CJFDTotal-HJSU199002003.htm .

Zhong CAO , Zhengde HUANG , Qun CHEN . Gain stabilization of the scintillator-photomultiplier counting rates . Nuclear Techniques , 1990 . 13 ( 2 ): 85 - 90 . http://www.cnki.com.cn/Article/CJFDTotal-HJSU199002003.htm .

张思玲 , 董成富 , 原振东 , . 低功耗和快速补偿的光电倍增管偏置电路 . 核电子学与探测技术 , 2000 . 20 ( 3 ): 236 - 239 . https://www.wenkuxiazai.com/doc/27ee0b61783e0912a2162ac9-2.html .

Siling ZHANG , Chengfu DONG , Zhendong YUAN . Low consumption and fast recovery photomultiplier bases . Nuclear Electronics & Detection Technology , 2000 . 20 ( 3 ): 236 - 239 . https://www.wenkuxiazai.com/doc/27ee0b61783e0912a2162ac9-2.html .

魏福利 , 王培伟 , 袁媛 , . 光电倍增管线性电流扩展研究 . 核电子学与探测技术 , 2011 . 31 ( 9 ): 986 - 990 . DOI: 10.3969/j.issn.0258-0934.2011.09.012 http://doi.org/10.3969/j.issn.0258-0934.2011.09.012 .

Fuli WEI , Peiwei WANG , Yuan YUAN . The study of linear current extention of PMT . Nuclear Electronics & Detection Technology , 2011 . 31 ( 9 ): 986 - 990 . DOI: 10.3969/j.issn.0258-0934.2011.09.012 http://doi.org/10.3969/j.issn.0258-0934.2011.09.012 .

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