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<p>The High Energy cosmic-Radiation Detection (HERD) facility is planned to be operational on China Space Station (CSS) starting from 2028, with a projected duration of approximately 10 years. With the high-accuracy silicon charge detector (SCD) and silicon tracker (STK) forming a compact structure, HERD is capable to provide charge and direction measurement from the trajectory measurement of charged cosmic-rays. A cellular automata-based track reconstruction algorithm is developed and validated on HERD Monte Carlo simulation data. The efficiency of this algorithm reaches <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(&gt;93\%\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mo>&gt;</mo> <mn>93</mn> <mo>%</mo> </mrow> </math></EquationSource> </InlineEquation> for 100 GeV proton, helium and carbon events while keeping low fake rate <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(&lt;2\%\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mo>&lt;</mo> <mn>2</mn> <mo>%</mo> </mrow> </math></EquationSource> </InlineEquation>.</p>

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Track reconstruction algorithm based on cellular automaton for HERD experiment

  • 期刊论文

  • 发表日期：

    2025年11月3日

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  • Zhaoyi Qu,
  • Zhicheng Tang,
  • Ming Xu,
  • Qiyun Li,
  • Liankun Zou,
  • Quanyin Li,
  • Zuhao Li

摘要

The High Energy cosmic-Radiation Detection (HERD) facility is planned to be operational on China Space Station (CSS) starting from 2028, with a projected duration of approximately 10 years. With the high-accuracy silicon charge detector (SCD) and silicon tracker (STK) forming a compact structure, HERD is capable to provide charge and direction measurement from the trajectory measurement of charged cosmic-rays. A cellular automata-based track reconstruction algorithm is developed and validated on HERD Monte Carlo simulation data. The efficiency of this algorithm reaches \(>93\%\) > 93 % for 100 GeV proton, helium and carbon events while keeping low fake rate \(<2\%\) < 2 % .