Speaker
Description
Silicon microstrip detectors provide high spatial resolution, reliable charge measurement, and a scalable detector architecture, making them well suited for charged-particle tracking, beam monitoring, and detector prototyping. In this work, we present the development and initial characterization of a compact silicon microstrip tracking system based on p-on-n strip sensors. Each detector module has 192 readout channels and an effective sensitive area of approximately 26*40 mm^2. The sensor is integrated with three 64-channel IDE1140 front-end ASICs, dedicated bias and control circuits, and a compact mechanical support structure. The system is designed to accommodate six modules arranged in three tracking stations with orthogonal strip orientations, enabling two-dimensional hit reconstruction and particle-track measurement.
The data acquisition system is built around a Xilinx ZCU102 FPGA board with dedicated firmware and control software. It supports front-end configuration, online calibration, programmable sampling delay, pedestal and noise measurements, and data acquisition using either internal or external triggers. Individual detector modules have been commissioned under a bias voltage of 50 V. The measured channel noise is typically around two ADC counts. Cosmic-ray measurements have been performed with several modules, and clear particle-induced cluster signals have been observed. A scan of the sampling delay also demonstrates its significant influence on the collected signal amplitude and detection efficiency.
The system is being integrated with a previously developed track-reconstruction framework. Together with our experience in operating an silicon beam monitor at the High Energy Photon Source, this development establishes a technical basis for compact beam telescopes and beam-diagnostic systems. Potential applications include charged-particle beam monitoring, characterization of novel detector prototypes, and tracking references for future high-energy physics experiments. The poster will present the detector design, DAQ architecture, cosmic-ray results, and the roadmap toward synchronized multi-module operation and beam tests.
