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TY - CONF AU - Lin, Q. AU - Corbett, W.J. AU - Martin, D.J. AU - Sun, Z.H. AU - Tian, K. ED - Schaa, Volker RW TI - Time-Synchronous Measurements of Transient Beam Dynamics at SPEAR3 J2 - Proc. of IBIC2018, Shanghai, China, 09-13 September 2018 CY - Shanghai, China T2 - International Beam Instrumentation Conference T3 - 7 LA - english AB - Multi-bunch beam instabilities can often be controlled with high-speed digital bunch-by-bunch feedback systems. The detected motion is based on charge centroid measurements that, for short bunches, cannot resolve intrabunch charge dynamics. To compliment the BxB data, we installed a fast-gated camera with a rotating mirror to sweep visible-light synchrotron radiation across the camera CCD. The SR measurements present a complimentary view of the motion. For this work we generated transient beam events in SPEAR3 using the BxB feedback system and synchronously observed the motion on the camera. Results are presented for a high-order multibunch beam instability and for single bunch drive-damp experiments. PB - JACoW Publishing CP - Geneva, Switzerland SP - 441 EP - 444 KW - feedback KW - diagnostics KW - controls KW - timing KW - synchrotron DA - 2019/01 PY - 2019 SN - 978-3-95450-201-1 DO - DOI: 10.18429/JACoW-IBIC2018-WEPB06 UR - http://jacow.org/ibic2018/papers/wepb06.pdf ER -