1–6 Jul 2025
Omni Boston Hotel at the Seaport
US/Eastern timezone

Thu-Af-Po.11-02: Impact of cryogenic system on RF phase stability in RAON SCL3

3 Jul 2025, 14:00
2h
Ensemble Ballroom, Level 2

Ensemble Ballroom, Level 2

Speaker

Seojeong Kim

Description

The cryogenic system for accelerator complex for ON-line experiments (RAON), is designed to maintain extremely low temperatures to support superconducting equipment, such as superconducting linear accelerators and low-temperature superconducting magnets. Superconducting RF (SRF) cavities are integral to particle accelerators, where phase stability ensures precise particle acceleration. The cryogenic system, responsible for maintaining ultralow temperatures for superconductivity, can inadvertently introduce instabilities due to thermal or mechanical perturbations. This study investigates how cryogenic systems affect the RF phase stability in superconducting linear accelerators (SCLs). We measured the changes in RF stability caused by the movement of cryogenic valves and variations in external heat input through experiments. By analyzing the interaction between thermal fluctuations, mechanical vibrations, and electromagnetic properties of RF cavities, we aim to provide insights into optimizing cryogenic operations to enhance phase stability.

Author

Co-authors

Mr Gyuho Lee (Institute for Basic Science) Hyun Chul Jo (Institute for Basic Science) Inmyung Park Mr Jae Hee Shin (Institute for Basic Science) Mr Jaehak Han (Institute for Basic Science) Mr Jinwook Kim (Institute for Basic Science) Junghyun YOO (Institute for Basic Science) Dr Min Ki Lee (Institute for Basic Science) Dr Youngkwon Kim (Institute for Basic Science)

Presentation materials

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