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TY - CONF AU - Liu, Y.-C. AU - Huang, J.C. AU - Tseng, F.H. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Beam-Based Alignment Procedures for Small Gap in-Vacuum Undulators at the Taiwan Photon Source J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - We have developed a beam-based alignment procedure for small gap IVUs (In-vacuum undulators) at TPS, which allow us to measure the field center and mechanical canter of IVUs with 0.1 mm accuracy. The measurement method and results are presented in this paper. PB - JACoW Publishing CP - Geneva, Switzerland SP - 4342 EP - 4344 KW - photon KW - alignment KW - undulator KW - MMI KW - electron DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-THPMK020 UR - http://jacow.org/ipac2018/papers/thpmk020.pdf ER -