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<p>Detectors based on cross delay-line (XDL) anodes with charge induction are widely applicable in space astronomical telescopes, deep space exploration, and fluorescence lifetime measurements. In this article, a three-dimensional structure XDL anode based on Printed Circuit Board (PCB) technology is proposed, which can conveniently realize high-resolution detection with a simple process and low cost. We theoretically studied the charge induction principle and established a model of the XDL anode through the finite element method. The model allows us to determine anode parameters, such as anode strip width, inter-strip distance, and substrate thickness, to optimize the output signal on the XDL anode, thereby indirectly affecting the resolution of the detector. Based on the experimental platform, we systematically characterized the key performance parameters of the detector. We conclude that the spatial resolution of the detector is better than 50 <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10043_2025_982_Article_IEq1.gif" Format="GIF" Height="13" Rendition="HTML" Resolution="72" Type="Linedraw" Width="12" /> </InlineMediaObject> <EquationSource Format="TEX">\(\upmu\)</EquationSource> <EquationSource Format="MATHML"><math> <mi mathvariant="normal">μ</mi> </math></EquationSource> </InlineEquation>m and the non-linearity is less than 5<InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10043_2025_982_Article_IEq2.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="15" /> </InlineMediaObject> <EquationSource Format="TEX">\(\%\)</EquationSource> <EquationSource Format="MATHML"><math> <mo>%</mo> </math></EquationSource> </InlineEquation>. </p>

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Design and performance of photon counting detector with charge coupling delay-line readout

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • Yalong Zhang,
  • Yongan Liu,
  • Xianghui Yang,
  • Zhe Liu,
  • Lizhi Sheng,
  • Yue Li

摘要

Detectors based on cross delay-line (XDL) anodes with charge induction are widely applicable in space astronomical telescopes, deep space exploration, and fluorescence lifetime measurements. In this article, a three-dimensional structure XDL anode based on Printed Circuit Board (PCB) technology is proposed, which can conveniently realize high-resolution detection with a simple process and low cost. We theoretically studied the charge induction principle and established a model of the XDL anode through the finite element method. The model allows us to determine anode parameters, such as anode strip width, inter-strip distance, and substrate thickness, to optimize the output signal on the XDL anode, thereby indirectly affecting the resolution of the detector. Based on the experimental platform, we systematically characterized the key performance parameters of the detector. We conclude that the spatial resolution of the detector is better than 50 \(\upmu\) μ m and the non-linearity is less than 5 \(\%\) % .