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阻性微井型径迹探测器电子学原理样机的设计与实现

Design and Implementation of Electronic Prototype for Micro Resistive Well Detector

  • 摘要: 应用于超级陶璨装置(Super Tau-Charm Facility, STCF)的大型探测谱仪将为粒子物理前沿研究提供独特平台。其中,位于中心的圆柱阻性微井型内径迹探测器(Inner TracKer, ITK)由于具备低物质量、高计数率和高空间分辨能力,是低动量粒子径迹重建的关键组件之一。本文针对阻性微井型探测器的物理需求,开展高电荷分辨精度读出电子学的关键技术研究,并研制了1套1024路高集成度、高性能的读出电子学原理样机。该系统包含ASIC读出单元、前端电子学板和数据汇总板等电路,结构合理,易于扩展。实验室仿真和板级测试表明,该系统功能符合预期,电荷分辨精度、积分非线性等指标满足需求,为下一步工程化提供了良好的技术支持。

     

    Abstract: The large-scale detector spectrometer to be employed in the Super Tau-Charm Facility (STCF) will provide a unique platform for cutting-edge particle physics research. Among its components, the cylindrical Resistive Micro-Well Inner Tracker (ITK), located at the core, is one of the key detectors for low-momentum particle trajectory reconstruction due to its low material budget, high counting rate, and excellent spatial resolution.This paper focuses on the physical requirements of the resistive micro-well detector and conducts research on critical technologies for readout electronics with high charge resolution. A highly integrated, high-performance 1024-channel readout electronics prototype has been developed. The system consists of ASIC readout units, front-end electronics boards, and data aggregation boards, featuring a rational and scalable architecture. Laboratory simulations and board-level tests demonstrate that the system functions as expected, with charge resolution and integral nonlinearity meeting specifications. These results provide strong technical support for further engineering development.

     

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