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@InProceedings{xu:ibic2020-thao04,
author = {X.Y. Xu and Y.B. Leng},
title = {{Beam Coupling Impedance Analyze Using Bunch-by-Bunch Measurement}},
booktitle = {Proc. IBIC'20},
pages = {202--205},
paper = {THAO04},
language = {english},
keywords = {wakefield, impedance, storage-ring, injection, betatron},
venue = {Santos, Brazil},
series = {International Beam Instrumentation Conference},
number = {9},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {10},
year = {2020},
issn = {2673-5350},
isbn = {978-3-95450-222-6},
doi = {10.18429/JACoW-IBIC2020-THAO04},
url = {https://www.jacow.org/ibic2020/papers/thao04.pdf},
note = {https://doi.org/10.18429/JACoW-IBIC2020-THAO04},
abstract = {Beam coupling impedance is very important parameters for advanced synchrotron radiation facilities. Till now there is no online method to measure beam impedance directly. But some beam parameters such as betatron tune amplitude and frequency, synchrotron phase, bunch lifetime and so on, can be modulated by beam impedance effects. So wake field and beam impedance information could be retrieved by measuring bunch-by-bunch beam 3D positions and analyzing bunch index dependency of above beam parameters. A bunch-by-bunch 3D positions and charge measurement system had been built at SSRF for this purpose and the performance is not good enough for beam impedance analyze due to cross talk between bunches. We upgraded the measurement system to minimize cross talk and improve resolution this year. New beam experiment results and corresponding analyze will be introduced in this paper.},
}