NSRRC Activity Report 2023

Facility Development and Status 097 sinusoidal current, with synchronized operation within the BACMPS, was achieved with precise timing control and current correction algorithms. This improvement in current reproducibility at the injection point to below 0.05% deviation between instances was instrumental in facilitating the injection of the electron beam from the booster ring into the storage ring, contributing to the experiments and work at the TPS facility. Energy Saving Modes In 2019, TPS implemented an energy-saving mode. In the BACMPS operating in the top-up mode, the current ramps up every 4 minutes, with the ramping current commencing 15 seconds prior. The injection duration depends on the injection efficiency and is typically within approximately 30 seconds. This initiative significantly reduces energy consumption and electricity costs. Fig. 5 : Ramping current waveform of the BACMPS: (a) BMPS (b) QMPS. [Reproduced from Ref. 3] In conclusion, the power supply and control groups have continually optimized the characteristics of BACMPS to increase the efficiency of TPS operations, from installation to the present, including testing, commissioning, and function to power-saving initiatives. (Reported by Bao- Sheng Wang) References 1. K. B. Liu, Y. D. Li, B. S. Wang, K. T. Hsu, IPAC’ 10 , WEPD075, 3275 (2010). 2. C.-Y. Liu, B.-S. Wang, Y.-S. Wong, Y.-C. Chien, K.-B. Liu, IPAC’ 16 , THPMW016, 3573 (2016). 3. Y.-C. Chien, B.-S. Wang, Y.-S. Wong, C.-Y. Liu, K.-B. Liu, C.-Y. Wu, P.-C. Chiu, K.-T. Hsu, IPAC’ 15 , WEPHA040, 3203 (2015). The Automatic System for the TLS 07A1 Endstation T he TLS beamline 07A1 endstation was established to facilitate multiple uses with various modes. The mode switching capability was manually realized in the previous operation design, and it took considerable time to reinstall and realign dozens of devices as part of the mode switching process. Occasionally, urgent sample tests jumped into the experimental schedule and took much time to reconfigure the system if different methods were used. Thus, an automated process system design was proposed to reduce the time wasted in switching modes. This design includes different types of experimental device transformations and high-speed gas exchange. The automation process is now conducted. The operating time of the experimental equipment transformation is efficiently reduced from a couple of hours to two minutes, and the amount of required manpower is decreased as well. Moreover, the duration of the execution time of the gas exchange process is also reduced dramatically from 100 to five minutes. When promoting the application of synchrotron radiation in industry, the ease of operation and efficiency of the experiments are often crucial factors. Noting that the TLS 07A1 is an experimental station primarily designed to meet industrial needs, in the past, the system could not handle urgent order demands. Different tasks typically require the conversion of different