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TY - CONF AU - Wang, B.S. AU - Huang, C.H. AU - Huang, J.C. AU - Liu, C.Y. AU - Liu, K.-B. AU - Wong, Y.S. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan TI - Improvement the Bending Magnet Power Supply Performance for TPS Storage Ring J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Partile Accelerator Conference T3 - 10 LA - english AB - In the TPS (Taiwan Photon Source) facility, current stability of the electron beam depends on the bending magnet power supply and an orbit FOFB system to compensate the magnetic field. Due to the output current stability of the bending magnet power supply drifts with temperature so the orbit FOFB system should be applied to fine tune magnetic field and the photon beam should circulate in storage ring. In this paper, to stabilize the temperature of regulation circuit’s temperature box of the bending magnet power supply, the long-term output current stability is improve from ± 50ppm to ± 10ppm, and orbit FOFB system substantially reduce the tune X of beam position, effectively increasing the beam current stability and quality. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1353 EP - 1355 KW - power-supply KW - storage-ring KW - feedback KW - controls KW - photon DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-TUPMP046 UR - http://jacow.org/ipac2019/papers/tupmp046.pdf ER -