Triple-Modular Redundancy Deployment Optimization in the Sensor Readout System of the CBM Micro Vertex Detector

This paper describes the deployment and optimization process of triple-module redundancy (TMR) under high design constraints against single-event upset (SEU) and single-event transient (SET). It includes modelling of single-event effect (SEE) pulses with TCAD mesh model, TMR deployment strategies, and verification methods. The simulation result shows that the prototype system with optimized TMR deployment has high reliability with respect to design requirements. The system can run for more than 5 years without critical errors with an equivalent error rate in the working environment is lower than 10$^{-9}$ .