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A FPGA-based data acquisition system for GEM array detector

机译:基于FPGA的GEM阵列检测器数据采集系统

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In the present study, a data acquisition system for a GEM one-dimensional array detector is presented. The detector system is to measure the trajectory of photoelectrons produced by cosmic rays. The GEM array detector for the present project has 16 signal channels. The front-end unit provides timing signals from trigger units and energy signals from charge sensitive amplifies and pulse shapers. The timing signals and the energy signals are fed to the time-to-digital converter (TDC) units and analog-to-digital converter (ADC) units respectively. The TDC is to measure the time interval between time marks provided by the front-end unit for trajectory information. The measurement of the pulse height for particle energy information is using an amplitude to time convertor (ATC). The designed TDC has a resolution about 2 ns with good linearity.
机译:在本研究中,提出了一种用于GEM一维阵列检测器的数据采集系统。探测器系统将测量宇宙射线产生的光电子的轨迹。用于本项目的GEM阵列检测器具有16个信号通道。前端单元提供来自触发单元的定时信号,以及来自电荷敏感放大器和脉冲整形器的能量信号。定时信号和能量信号分别被馈送到时间数字转换器(TDC)单元和模数转换器(ADC)单元。 TDC将测量前端单元提供的轨迹信息之间的时间标记之间的时间间隔。用于粒子能量信息的脉冲高度的测量是使用幅度到时间转换器(ATC)。设计的TDC具有约2 ns的分辨率和良好的线性度。

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