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TY - CONF AU - Wang, Q. AU - Jiang, S.M. AU - Luo, Q. AU - Sun, B.G. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Study on the Influence of Beam Transverse Position on the Cavity Bunch Length Measurement J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - Monopole modes in the resonant cavity are wildly used to obtain the beam current and the bunch length, while dipole modes are used to measure the beam transverse position. It is generally recognized that the monopole modes are independent of the beam transverse offset. In this paper, the influence of beam transverse offset on the bunch length measurement using monopole modes is analyzed. The simulation results show that the relative error of the bunch length measurement is less than 1 % when the beam offset is within 1 mm. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2578 EP - 2580 KW - cavity KW - simulation KW - dipole KW - electron KW - laser DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPGW044 UR - http://jacow.org/ipac2019/papers/wepgw044.pdf ER -