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脉冲幅度测量数据分析和滤波器优化：高分辨率 X 射线光谱学案例研究。

Data Analysis and Filter Optimization for Pulse-Amplitude Measurement: A Case Study on High-Resolution X-ray Spectroscopy.

机构信息

International Centre for Theoretical Physics, 34151 Trieste, Italy.

Department of Physics, University of Sri Jayewardenepura, Nugegada 10250, Sri Lanka.

出版信息

Sensors (Basel). 2022 Jun 24;22(13):4776. doi: 10.3390/s22134776.

DOI:10.3390/s22134776
PMID:35808271
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9269590/
Abstract

In this study, we present a procedure to optimize a set of finite impulse response filter (FIR) coefficients for digital pulse-amplitude measurement. Such an optimized filter is designed using an adapted digital penalized least mean square (DPLMS) method. The effectiveness of the procedure is demonstrated using a dataset from a case study on high-resolution X-ray spectroscopy based on single-photon detection and energy measurements. The energy resolutions of the α and β lines of the Manganese energy spectrum have been improved by approximately 20%, compared to the reference values obtained by fitting individual photon pulses with the corresponding mathematical model.

摘要

在本研究中，我们提出了一种优化有限脉冲响应滤波器（FIR）系数的方法，用于数字脉冲幅度测量。这种优化滤波器是使用自适应数字惩罚最小均方（DPLMS）方法设计的。该程序的有效性通过基于单光子探测和能量测量的高分辨率 X 射线光谱学案例研究中的数据集得到了证明。与通过将单个光子脉冲与相应的数学模型拟合来获得的参考值相比，锰能谱的α和β线的能量分辨率提高了约 20%。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/bcf2895757f4/sensors-22-04776-g015.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/7759ccbabe98/sensors-22-04776-g011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/adffbcbda78b/sensors-22-04776-g013.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/984b4f6c7211/sensors-22-04776-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/507fa3ae15ca/sensors-22-04776-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/4a15f3b47c94/sensors-22-04776-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/16b627189105/sensors-22-04776-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/f80af58a89dd/sensors-22-04776-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/705c99d8fb8a/sensors-22-04776-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/0774ae9c5c71/sensors-22-04776-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/c535748c46e3/sensors-22-04776-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/f146586dc744/sensors-22-04776-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/97bf55f031d5/sensors-22-04776-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/7759ccbabe98/sensors-22-04776-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e395/9269590/2e0f7a4e0244/sensors-22-04776-g012.jpg
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本文引用的文献

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J Synchrotron Radiat. 2018 Jan 1;25(Pt 1):257-271. doi: 10.1107/S1600577517015697.
2
Vision 20/20: Single photon counting x-ray detectors in medical imaging.视野 20/20：医学成像中的单光子计数 X 射线探测器。
Med Phys. 2013 Oct;40(10):100901. doi: 10.1118/1.4820371.
3
A novel non-linear recursive filter design for extracting high rate pulse features in nuclear medicine imaging and spectroscopy.
一种用于核医学成像和光谱学中提取高速脉冲特征的新型非线性递归滤波器设计。
Med Eng Phys. 2013 Jun;35(6):754-64. doi: 10.1016/j.medengphy.2012.08.003. Epub 2012 Sep 8.
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Dual- and multi-energy CT: approach to functional imaging.双能量和多能量CT：功能成像方法
Insights Imaging. 2011 Apr;2(2):149-159. doi: 10.1007/s13244-010-0057-0. Epub 2011 Jan 19.