2–5 Sept 2025
Urumqi, Xinjiang, China
Asia/Shanghai timezone

Bunch lengthening study with harmonic cavities for HLS-III

THP24
4 Sept 2025, 18:55
1h 35m
Urumqi, Xinjiang, China

Urumqi, Xinjiang, China

Poster Presentation MC2: Beam Dynamics and EM Fields Poster Session

Speaker

Wenshu Liang (University of Science and Technology of China)

Description

Hefei Light Source II (HLS-II) is currently planned for an upgrade to Hefei Light Source III (HLS-III). To increase beam Touschek lifetime and suppress beam instabilities, HLS-III will employ harmonic cavities for bunch lengthening. This study evaluates bunch lengthening performance for different RF frequencies and harmonic cavity orders using theoretical analytical formulations, identifying the required cavity voltages and quantifying the corresponding Touschek lifetime improvement factors. This study provides critical guidance for the selection of RF frequencies and harmonic cavity parameters for HLS-III.

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Author

Wenshu Liang (University of Science and Technology of China)

Co-authors

Tianlong He (University of Science and Technology of China) Qing Luo (University of Science and Technology of China) Zhenghe Bai (University of Science and Technology of China)

Presentation materials

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