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<p>The alpha magnetic spectrometer is a precision particle detector mounted on the International Space Station since 2011. The transition radiation detector (TRD) has 20 layers of fleece radiator and straw tube filled with <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\hbox {Xe}/\hbox {CO}_{2}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mtext>Xe</mtext> <mo stretchy="false">/</mo> <msub> <mtext>CO</mtext> <mn>2</mn> </msub> </mrow> </math></EquationSource> </InlineEquation> gas mixture operating in proportional mode. The straw tubes provide position and <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\hbox {d}E/\hbox {d}X\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mtext>d</mtext> <mi>E</mi> <mo stretchy="false">/</mo> <mtext>d</mtext> <mi>X</mi> </mrow> </math></EquationSource> </InlineEquation> measurements for nuclei events and can form a standalone TRD track. A TRD track reconstruction algorithm based on cellular automaton is developed, and an efficiency of &gt;&#xa0;95% is achieved for all nuclei species.</p>

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Track reconstruction of nuclei cosmic rays on the transition radiation detector of AMS

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • Manshu Li,
  • Zhaoyi Qu,
  • Weiwei Xu,
  • Qi Yan,
  • Liankun Zou

摘要

The alpha magnetic spectrometer is a precision particle detector mounted on the International Space Station since 2011. The transition radiation detector (TRD) has 20 layers of fleece radiator and straw tube filled with \(\hbox {Xe}/\hbox {CO}_{2}\) Xe / CO 2 gas mixture operating in proportional mode. The straw tubes provide position and \(\hbox {d}E/\hbox {d}X\) d E / d X measurements for nuclei events and can form a standalone TRD track. A TRD track reconstruction algorithm based on cellular automaton is developed, and an efficiency of > 95% is achieved for all nuclei species.