<p>The Cooling Storage Ring (CSR) external-target experiment (CEE) will be the first large-scale nuclear physics experiment at the Heavy Ion Research Facility in Lanzhou (HIRFL). A beam monitor has been developed to monitor the beam status and to improve the reconstruction resolution of the primary vertex. Custom-designed pixel charge sensors, named Topmetal-CEEv1, are employed in the detector to locate the position of each particle. Readout electronics for the beam monitor were designed, including front-end electronics utilizing the Topmetal-CEEv1 sensors, as well as a readout and control unit that communicates with the DAQ, trigger, and clock systems. A series of tests were performed to validate the functionality and performance of the system, including basic electronic verifications and responses to <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="41365_2025_1652_Article_IEq1.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="14" /> </InlineMediaObject> <EquationSource Format="TEX">\(\alpha\)</EquationSource> <EquationSource Format="MATHML"><math> <mi>α</mi> </math></EquationSource> </InlineEquation> particles and heavy-ion beams. The results show that all designed functions of the readout electronics system work well, and this system could be used for beam monitoring in the CEE experiment.</p>

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Readout electronics for beam monitor in the External-Target Experiment of CSR

  • Jun Liu,
  • Chao-Song Gao,
  • Hu-Lin Wang,
  • Zhen Wang,
  • Xiang-Ming Sun,
  • Ran Chen,
  • Fei Yan,
  • Bi-Hui You,
  • Zi-Xuan Song,
  • Cheng-Xin Zhao,
  • Guang-Ming Huang,
  • Feng Liu

摘要

The Cooling Storage Ring (CSR) external-target experiment (CEE) will be the first large-scale nuclear physics experiment at the Heavy Ion Research Facility in Lanzhou (HIRFL). A beam monitor has been developed to monitor the beam status and to improve the reconstruction resolution of the primary vertex. Custom-designed pixel charge sensors, named Topmetal-CEEv1, are employed in the detector to locate the position of each particle. Readout electronics for the beam monitor were designed, including front-end electronics utilizing the Topmetal-CEEv1 sensors, as well as a readout and control unit that communicates with the DAQ, trigger, and clock systems. A series of tests were performed to validate the functionality and performance of the system, including basic electronic verifications and responses to \(\alpha\) α particles and heavy-ion beams. The results show that all designed functions of the readout electronics system work well, and this system could be used for beam monitoring in the CEE experiment.