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@inproceedings{huang:ipac2021-thpab309, author = {S.J. Huang and Y.C. Lin and Y.K. Lin}, title = {{New Working Tune Feedback System for TLS}}, booktitle = {Proc. IPAC'21}, pages = {4394--4395}, eid = {THPAB309}, language = {english}, keywords = {feedback, quadrupole, insertion, insertion-device, radiation}, venue = {Campinas, SP, Brazil}, series = {International Particle Accelerator Conference}, number = {12}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {08}, year = {2021}, issn = {2673-5490}, isbn = {978-3-95450-214-1}, doi = {10.18429/JACoW-IPAC2021-THPAB309}, url = {https://jacow.org/ipac2021/papers/thpab309.pdf}, note = {https://doi.org/10.18429/JACoW-IPAC2021-THPAB309}, abstract = {{TLS storage ring has two sets of working tuning feedback systems: one is used to correct the working tune deviation caused by insertion device U90; another system uses a local trim coil to correct the working tune deviation caused by all insertion devices. This article describes a new working tune feedback system in TLS that can correct the working tune effectively back to the required conditions for operation; the two existing feedback systems do not cause problems. We can both avoid increasing the local radiation dose and decreasing the injection efficiency.}}, }