The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Cheng, W.X. AU - Ha, K. AU - Tian, Y. AU - Yu, L.-H. ED - Petit-Jean-Genaz, Christine ED - Kim, Dong Eon ED - Kim, Kyung Sook ED - Ko, In Soo ED - Schaa, Volker RW TI - Precise Beam Orbit Response Measurement with AC Excitation J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016 C1 - Busan, Korea T2 - International Particle Accelerator Conference T3 - 7 LA - english AB - Fast correctors at NSLS-II storage ring has broad frequency response (~1kHz bandwidth), together with high accurate BPM 10kHz data makes the broadband fast orbit feedback realistic. With integrated NCO, beam orbit response can be precisely measured while driving the electron beam with AC current. Compared to the normal DC orbit response measurement, this method eliminates the measurement errors due to orbit drift. Accurately measured orbit response matrix can be used to characterize the machine lattice. Fast corrector frequency responses have been measured using the same method, by scanning the excitation frequency. This information can be used to optimize the fast orbit feedback control loop. PB - JACoW CP - Geneva, Switzerland SP - 380 EP - 382 KW - feedback KW - electronics KW - network KW - power-supply KW - storage-ring DA - 2016/06 PY - 2016 SN - 978-3-95450-147-2 DO - 10.18429/JACoW-IPAC2016-MOPMR058 UR - http://jacow.org/ipac2016/papers/mopmr058.pdf ER -