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| WEPP01 |
Longitudinal Impedance Measurements With Streak Camera at BEPC II Electron Storage Ring |
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- D.C. Zhu, J.S. Cao, Y.F. Sui, J.Q. Wang, J.H. Yue, W. Zhang
IHEP, Beijing, People’s Republic of China
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We measure the bunch length at BEPC II electron storage ring using a dual sweep streak camera at visible light diagnostic beamline. The impedances estimated by a series R+L impedance model. Resistive impedance of R=446±21 Ω is obtained by measuring loss factor from measured synchronous phase advancing with streak camera. An inductance impedance of L=23.3±1.8 nH has been estimated by measuring single bunch lengthening with beam current. Both loss factor and inductance are close to the impedance budget. Besides, the streak cam-era is also used to measure synchronous phase at low current as RF voltage changing from 0.85 MV to 1.65 MV.
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Poster WEPP01 [0.827 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IBIC2021-WEPP01
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| About • |
paper received ※ 08 September 2021 paper accepted ※ 27 September 2021 issue date ※ 24 October 2021 |
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