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@inproceedings{zhu:ibic2021-wepp01,
author = {D.C. Zhu and J.S. Cao and Y.F. Sui and J.Q. Wang and J.H. Yue and W. Zhang},
title = {{Longitudinal Impedance Measurements With Streak Camera at BEPC II Electron Storage Ring}},
booktitle = {Proc. IBIC'21},
pages = {353--355},
eid = {WEPP01},
language = {english},
keywords = {impedance, synchrotron, electron, storage-ring, radiation},
venue = {Pohang, Rep. of Korea},
series = {International Beam Instrumentation Conference},
number = {10},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2021},
issn = {2673-5350},
isbn = {978-3-95450-230-1},
doi = {10.18429/JACoW-IBIC2021-WEPP01},
url = {https://jacow.org/ibic2021/papers/wepp01.pdf},
note = {https://doi.org/10.18429/JACoW-IBIC2021-WEPP01},
abstract = {{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.}},
}