Speaker
Description
High-Pressure Rinsing (HPR) is one of the most im-portant processes in achieving high performance of SRF cavities. The geometry of SSR cavities differs significant-ly from that of HWR and QWR cavities. To upgrade the HPR process of SSR cavities, it is important to under-stand how much of the inner surface area can be effective-ly reached by the waterjet from HPR nozzles. HPR simu-lation software was developed to evaluate waterjet cover-age based on parameters such as nozzle hole orientation, rotation speed, and translation speed of the nozzle rod. Two types of nozzles were fabricated for SSR1 and SSR2 cavities to improve rinsing performance. Prototype test-ing of SSR1 and SSR2 cavities using these new nozzles is currently underway at IRIS. The nozzle design is being optimized based on simulation and experimental results.
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