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TY - CONF AU - Wang, C.H. AU - Lu, P. AU - Sun, B.G. AU - Tang, L.L. AU - Zhou, T.Y. ED - Kim, Changbum ED - Schaa, Volker R. W. ED - Kim, Dong-Eon ED - Lee, Jaeyu TI - Design of Support for BPM Displacement Measurement System for Half and EPICS Connection J2 - Proc. of IBIC2021, Pohang, Rep. of Korea, 24-28 May 2021 CY - Pohang, Rep. of Korea T2 - International Beam Instrumentation Conference T3 - 10 LA - english AB - The beam orbit stability is an important parameter to measure the stability of the synchrotron radiation source. As for the fourth-generation storage ring, the emittance and beam size continue to decrease and higher requirements are being put for-ward for beam orbit stability. There are two main factors that affect the stability of the beam orbit. One is the vibration of the ground and other systems, which requires highly mechanically stable support. The other is due to synchrotron radiation and changes in ambient temperature, which lead to the expansion and deformation of the vacuum chamber, causing BPM movement and misjudging the position of the beam orbit. The misjudging will introduce errors in the orbit feedback system and decrease the stability of the beam orbit. Therefore, a set of offline BPM (beam position monitor) displacement measurement system with high stability was built. However, considering the adverse effect of the INVAR36 on magnetic field and the drift of the displacement data, we added carbon fiber to the new support for BPM displacement measurement probes. Besides we realized the function of real-time reading BPM displacement data through EPICS. This article mainly introduces the support design and EPICS connection of the BPM displacement measurement system. PB - JACoW Publishing CP - Geneva, Switzerland SP - 59 EP - 62 KW - EPICS KW - storage-ring KW - vacuum KW - site KW - synchrotron DA - 2021/10 PY - 2021 SN - 2673-5350 SN - 978-3-95450-230-1 DO - doi:10.18429/JACoW-IBIC2021-MOPP13 UR - https://jacow.org/ibic2021/papers/mopp13.pdf ER -