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TY - CONF AU - Chen, J. AU - Lai, L.W. AU - Leng, Y.B. AU - Yu, L.Y. AU - Yuan, R.X. ED - Schaa, Volker RW TI - The Evaluation of Beam Inclination Angle on the Cavity BPM Position Measurement J2 - Proc. of IBIC2018, Shanghai, China, 09-13 September 2018 CY - Shanghai, China T2 - International Beam Instrumentation Conference T3 - 7 LA - english AB - Cavity beam position monitor (CBPM) is widely used to measure the transverse position in free-electron laser (FEL) and international linear collider (ILC) facilities due to the characteristic of high sensitive. In order to study the limiting factors of the position resolution of cavity BPM, the influence of beam inclination angle on the measure-ment of CBPM position and the direction of beam deflec-tion was analyzed. The simulation results show that the beam inclination angle is an important factor limiting the superiority of CBPM with extremely high position resolu-tion. The relative beam experiments to change the relative inclination angle between the cavity and the electron beam based on a 4-dimension moveable platform were performed in Shanghai Soft X-ray FEL (SXFEL) facility, the experiment results will also be mentioned as well. PB - JACoW Publishing CP - Geneva, Switzerland SP - 278 EP - 280 KW - cavity KW - FEL KW - simulation KW - experiment KW - electron DA - 2019/01 PY - 2019 SN - 978-3-95450-201-1 DO - DOI: 10.18429/JACoW-IBIC2018-TUPB09 UR - http://jacow.org/ibic2018/papers/tupb09.pdf ER -