Scholarlink

<p>A time-of-flight Highly Granular Neutron Detector (HGND) with a multilayer longitudinal structure of interleaved absorber and scintillator plates, high transverse granularity, and time resolution of approximately 150&#xa0;ps is currently under development. The detector is designed to identify neutrons produced in nucleus–nucleus collisions and measure neutron kinetic energies of 0.3–4&#xa0;GeV by the time-of-flight method in the BM@N experiment at the NICA accelerator complex at JINR. To validate the concept of full-scale HGND, a compact HGND prototype was first designed and built, and its performance was studied in the BM@N experiment. The acceptance of the HGND prototype and the detection efficiency of forward neutrons emitted in hadronic fragmentation and electromagnetic dissociation (EMD) of 3.8<i>A</i>&#xa0;GeV <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="41365_2025_1817_Article_IEq1.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\(^{124}\)</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow /> <mn>124</mn> </mmultiscripts> </math></EquationSource> </InlineEquation>Xe projectiles interacting with a CsI target were calculated by means of the DCM-QGSM-SMM and RELDIS models, respectively. The energy distributions of the forward spectator neutrons and neutrons from the EMD were measured and compared with the simulations. The developed methods will be used to calibrate the full-scale HGND and study its efficiency.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Performance study of the Highly Granular Neutron Detector prototype in the BM@N experiment

  • 期刊论文

  • 发表日期：

    2025年9月20日

查看全文
  • A. Zubankov,
  • S. Afanasiev,
  • M. Golubeva,
  • F. Guber,
  • A. Ivashkin,
  • N. Karpushkin,
  • O. Kutinova,
  • D. Lyapin,
  • A. Makhnev,
  • S. Morozov,
  • P. Parfenov,
  • I. Pshenichnov,
  • D. Sakulin,
  • S. Savenkov,
  • A. Shabanov,
  • E. Sukhov,
  • A. Svetlichnyi,
  • G. Taer,
  • V. Ustinov

摘要

A time-of-flight Highly Granular Neutron Detector (HGND) with a multilayer longitudinal structure of interleaved absorber and scintillator plates, high transverse granularity, and time resolution of approximately 150 ps is currently under development. The detector is designed to identify neutrons produced in nucleus–nucleus collisions and measure neutron kinetic energies of 0.3–4 GeV by the time-of-flight method in the BM@N experiment at the NICA accelerator complex at JINR. To validate the concept of full-scale HGND, a compact HGND prototype was first designed and built, and its performance was studied in the BM@N experiment. The acceptance of the HGND prototype and the detection efficiency of forward neutrons emitted in hadronic fragmentation and electromagnetic dissociation (EMD) of 3.8A GeV \(^{124}\) 124 Xe projectiles interacting with a CsI target were calculated by means of the DCM-QGSM-SMM and RELDIS models, respectively. The energy distributions of the forward spectator neutrons and neutrons from the EMD were measured and compared with the simulations. The developed methods will be used to calibrate the full-scale HGND and study its efficiency.