The trigger system for the CSR external-target experiment

分类： 物理学 >> 核物理学 提交时间： 2023-09-11

Guo, Dong Haoqian Xyu DongDong Qi HeXiang Wang Lei Zhang Zhengyang Sun Zhi Qin Botan Wang Yingjie Zhou Zekun Wang Yuansheng Yang Yuhao Qin Xianglun Wei Herun Yang Yuhong Yu Lei Zhao Zhigang Xiao

摘要：A trigger system has been designed and implemented for the HIRFL-CSR external target experiment (CEE), the spectrometer for studying nuclear matter properties with heavy ion collisions in the GeV energy region. The system adopts master-slave structure and serial data transmission mode using optical fiber to deal with different types of detectors and long-distance signal transmission. The trigger logic can be accessed based on command register and controlled by a remote computer. The overall field programmable gate array (FPGA) logic can be flexibly reconfigured online to  match the physical requirements of the experiment. The trigger system has been tested in beam experiment. It is demonstrated that the trigger system functions correctly and meets the physical requirements of CEE. 

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