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TY - CONF AU - Lee, J. AU - Chun, M.-H. AU - Hwang, I. AU - Kim, D.T. AU - Kim, G. AU - Lee, T.-Y. AU - Shin, D.C. AU - Shin, S. ED - Petit-Jean-Genaz, Christine ED - Kim, Dong Eon ED - Kim, Kyung Sook ED - Ko, In Soo ED - Schaa, Volker RW TI - Bunch by Bunch Position Measurement and Analysis at PLS-II J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016 C1 - Busan, Korea T2 - International Particle Accelerator Conference T3 - 7 LA - english AB - Beam dynamic phenomena described by bunch-by-bunch motion are important issues for a storage ring and are described by various theoretical formalisms. Direct measurements of the beam position related to different dynamical mechanisms are a useful information to accelerator optimization. In PLS-II, 20 GHz sampling oscilloscope synchronized with injection event (or triggered by beam loss signal) is used to measure direct bunch by bunch motion. Based on the measured data, the principal component analysis had been performed to get the insight into beam dynamic phenomena such as couple bunch instability and beam oscillation due to kicker leakage. In this paper, we will describe the measurement method and the result of analysis for coupled bunch instability. PB - JACoW CP - Geneva, Switzerland SP - 232 EP - 234 KW - injection KW - kicker KW - operation KW - betatron KW - pick-up DA - 2016/06 PY - 2016 SN - 978-3-95450-147-2 DO - 10.18429/JACoW-IPAC2016-MOPMR002 UR - http://jacow.org/ipac2016/papers/mopmr002.pdf ER -