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TY - CONF AU - Huang, L.T. AU - Gao, F.L. AU - Lu, P. AU - Sun, B.G. AU - Wang, H.Q. AU - Wang, J.G. AU - Wang, Q. AU - Wu, F.F. AU - Yang, Y.L. AU - Zhou, T.Y. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Test of the Tune Measurement System Based on BBQ at HLS-II Storage Ring J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - The HLS-II storage ring is a crucial part of Hefei Light Source. Tune is one of the most important parameters of the electron storage ring, of which the tune measurement system is an integral component. In this paper, the design of a new tune measurement system based on BBQ (base band tune), is presented. Some experiments are performed to test this system. The new system is compared with the original system and the TBT (turn-by-turn) method respectively. The obtained results illustrate higher accuracy and higher stability for the new system. A new approach of calculating the betatron oscillation amplitude is proposed, and the betatron oscillation amplitudes in the normal running stage for the HLS-II storage ring are estimated at 95 nm (horizontal) and 60 nm (vertical). PB - JACoW Publishing CP - Geneva, Switzerland SP - 4926 EP - 4928 KW - betatron KW - storage-ring KW - ion-source KW - experiment KW - controls DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-THPML111 UR - http://jacow.org/ipac2018/papers/thpml111.pdf ER -