An FPGA-based Trigger System for CSHINE

TL;DR

This paper presents an FPGA-based trigger system designed for heavy ion nuclear reaction experiments, demonstrating its successful application and verification on the CSHINE spectrometer at RIBLL1, China.

Contribution

The paper introduces a flexible FPGA-based trigger system using commercial modules for nuclear experiments, enabling configurable trigger functions and successful deployment on CSHINE.

Findings

Trigger system functions correctly during experiments.

System is adaptable for various experimental setups.

Online results confirm reliable operation.

Abstract

A trigger system of general function is designed using the commercial module CAEN V2495 for heavy ion nuclear reaction experiment at Fermi energies. The system has been applied and verified on CSHINE (Compact Spectrometer for Heavy IoN Experiment). Based on the field programmable logic gate array (FPGA) technology of command register access and remote computer control operation, trigger functions can be flexibly configured according to the experimental physical goals. Using the trigger system on CSHINE, we carried out the beam experiment of 25 MeV/u $ ^{86}{\rm Kr}+ ^{124}{\rm Sn}$ on the Radioactive Ion Beam Line 1 in Lanzhou (RIBLL1), China. The online results demonstrate that the trigger system works normally and correctly. The system can be extended to other experiments.