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The CMS (Compact Muon Solenoid) Collaboration is developing a high-granularity calorimeter (HGCAL) to operate at the high-luminosity large hadron collider (HL-LHC), featuring about 6 million readout channels and around 26,000 detector modules. Each module uses front-end “hexaboards" with HGCROC chips (2 to 6 per board) to read data. Ensuring reliable solder connections between the HGCROCs and the hexaboards is critical. A capacitive charge injection (CI) system is being designed to test these connections without requiring physical electrical contact, to preserve the integrity of the hexaboards. This non-invasive method will ensure rapid quality control (QC) for mass production, essential for the deployment of the HGCAL.

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Design and Development of a Charge Injection System for the CMS HGCAL Hexaboards

  • 会议论文

  • 发表日期：

    2025年

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  • Mandar Saraf,
  • Jasmine Chhikara,
  • Rajdeep Chatterjee,
  • Shilpi Jain,
  • Gobinda Majumder

摘要

The CMS (Compact Muon Solenoid) Collaboration is developing a high-granularity calorimeter (HGCAL) to operate at the high-luminosity large hadron collider (HL-LHC), featuring about 6 million readout channels and around 26,000 detector modules. Each module uses front-end “hexaboards" with HGCROC chips (2 to 6 per board) to read data. Ensuring reliable solder connections between the HGCROCs and the hexaboards is critical. A capacitive charge injection (CI) system is being designed to test these connections without requiring physical electrical contact, to preserve the integrity of the hexaboards. This non-invasive method will ensure rapid quality control (QC) for mass production, essential for the deployment of the HGCAL.