| Paper |
Title |
Page |
| MOPMR002 |
Bunch by Bunch Position Measurement and Analysis at PLS-II |
232 |
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- J. Lee, M.-H. Chun, I. Hwang, D.T. Kim, G. Kim, T.-Y. Lee, D.C. Shin, S. Shin
PAL, Pohang, Kyungbuk, Republic of Korea
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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.
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-MOPMR002
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| THPMB030 |
Operation Improvement by Tuning of Storage Ring at PLS-II |
3297 |
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- I. Hwang, M. Kim, T.-Y. Lee, C.D. Park
PAL, Pohang, Kyungbuk, Republic of Korea
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After upgrade of the pohang light source (PLS-II), several problems reduced the quality of the top-up operation. Unbalance of the injection kicker system and it's lack of control had limited the efficiency of the injection from the linac to the storage ring. We tuned the storage ring to improve the injection efficiency and to stabilize the orbit during the injection.
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| DOI • |
reference for this paper
※ DOI:10.18429/JACoW-IPAC2016-THPMB030
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| Export • |
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