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The trigger system for the CSR external-target experiment

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arxiv 2309.06417 v1 pith:4JR47GNG submitted 2023-09-12 physics.ins-det nucl-ex

Dong Guo , Haoqian Xyu , DongDong Qi , HeXiang Wang , Lei Zhang , Zhengyang Sun , Zhi Qin , Botan Wang
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Yingjie Zhou Zekun Wang Yuansheng Yang Yuhao Qin Xianglun Wei Herun Yang Yuhong Yu Lei Zhao Zhigang Xiao
This is my paper · ORCID
classification physics.ins-detnucl-ex
keywords systemtriggerexperimentbeenlogicphysicalrequirementstransmission
verification ladder T0 review T1 audit T2 compute T3 formal
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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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