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TY - CONF AU - Lee, H.-G. AU - Jeong, S.-H. AU - Jung, Y.G. AU - Kang, H.-S. AU - Kim, D.E. AU - Lee, S.B. AU - Oh, B.G. AU - Park, K.-H. AU - Suh, H.S. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - Technical Overview of Inter-Undulator Support System for PAL XFEL J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - Pohang Accelerator Laboratory (PAL) has been developing a SASE X-ray Free Electron Laser based on 10 GeV linear accelerator. The inter-Undulator (IU) support system was developed to be used in the intersections of the Undulator Systems. The IU supports consist of phase shifter, quadrupole magnet with mover, beam loss monitor, cavity BPM with mover, two corrector magnets and vacuum components. The adjusting mechanism of IU Support has manual alignment system to be easily adjusting the component. The mover of quadruple magnet and cavity BPM with submicron repeatability has auto-adjusting systems with stepping motor. The mover main specifications include compact dimensions and a ±1.5 mm stroke in the vertical and horizontal direction. Linear motion guide based on 5-phase stepping motors have been chosen. This paper describes the design of the stages used for precise movement and results of mechanical measurements including reproducibility will be reported. PB - JACoW CP - Geneva, Switzerland SP - 4579 EP - 4581 KW - undulator KW - cavity KW - quadrupole KW - controls KW - feedback DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-THPVA060 UR - http://jacow.org/ipac2017/papers/thpva060.pdf ER -