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Purpose <p>In the fields of high-energy physics and astrophysics, dual silicon microstrip detectors require a large number of electronic readout channels, making the application-specific integrated circuit (ASIC) a core device of the electronic readout system. However, the ASIC operates internally as an analog circuit, which means it is difficult to realize the waveform digital acquisition in parallel, making it difficult to obtain the waveform information and apply digital shaping algorithms.</p> Methods <p>In this paper, a 64-channel waveform digital acquisition system based on the analog front-end (AFE) and the field programmable gate array (FPGA) is developed. The system boasts 64-channel differential inputs, parallel waveform data outputs, 12-bit resolution, and&#xa0;a sampling rate of up to 65 Msps for each channel.</p> Results <p>In the Alpha source experimental environment, the system is able to capture the pulse waveforms from the detector, perform digital signal processing, and achieve preliminary Alpha source collimation characterization results.</p> Conclusion <p>The 64-channel waveform digital acquisition system designed in this paper can achieve parallel digitization of waveforms and digital shaping processing, providing new ideas for multi-channel waveform digitization scenarios.</p>

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Design of a multi-channel digital waveform acquisition system for dual silicon microstrip detectors

  • 期刊论文

  • 发表日期：

    2025年8月18日

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  • Haowen Deng,
  • Jian Yang,
  • Guoqiang Zeng,
  • Xinyu Yang,
  • Chuanhao Hu

摘要

Purpose

In the fields of high-energy physics and astrophysics, dual silicon microstrip detectors require a large number of electronic readout channels, making the application-specific integrated circuit (ASIC) a core device of the electronic readout system. However, the ASIC operates internally as an analog circuit, which means it is difficult to realize the waveform digital acquisition in parallel, making it difficult to obtain the waveform information and apply digital shaping algorithms.

Methods

In this paper, a 64-channel waveform digital acquisition system based on the analog front-end (AFE) and the field programmable gate array (FPGA) is developed. The system boasts 64-channel differential inputs, parallel waveform data outputs, 12-bit resolution, and a sampling rate of up to 65 Msps for each channel.

Results

In the Alpha source experimental environment, the system is able to capture the pulse waveforms from the detector, perform digital signal processing, and achieve preliminary Alpha source collimation characterization results.

Conclusion

The 64-channel waveform digital acquisition system designed in this paper can achieve parallel digitization of waveforms and digital shaping processing, providing new ideas for multi-channel waveform digitization scenarios.