NSRRC Activity Report 2022

090 NSRRC ACTIVITY REPORT 2022 67.4 91.4 110.4 160.2 106.4 130.4 98.4% 99.2% 98.4% 98.8% 97.9% 98.7% 0 50 100 150 200 80% 85% 90% 95% 100% 2017 2018 2019 2020 2021 2022 TPS MTBF (Hour) TPS Availability Year Fig. 4 : User time and beam availability of the TPS from 2016 onward. Fig. 5 : MTBF and beam trip statistics of the TPS from 2017 onward. Fig. 6 : Proportions of beam trips of the TPS accelerator in 2022. (36 trip events in total) Downtime and failure analysis of the TPS In 2022, there were 36 beam trips and 62 hours of downtime in total. The contributions from each subsystem are illustrated in Fig. 6 and Fig. 7 . The subsystems have all been gradually improved in past years to achieve stable operation. (Reported by Chang-Hor Kuo)