The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Wu, F.F. AU - Gao, F.L. AU - Huang, L.T. AU - Liu, X.Y. AU - Lu, P. AU - Sun, B.G. AU - Wang, J.G. AU - Wei, J.H. AU - Zhou, T.Y. ED - Schaa, Volker RW TI - Beam Transverse Quadrupole Oscillation Measurement in the Injection Stage for the HLS-II Storage Ring J2 - Proc. of IBIC2018, Shanghai, China, 09-13 September 2018 CY - Shanghai, China T2 - International Beam Instrumentation Conference T3 - 7 LA - english AB - Beam transverse quadrupole oscillation can be excited in the injection stage if injected beam parameters(twiss parameters or dispersion) are not matched with the parameters in the injection point of the storage ring. In order to measure the beam transverse quadrupole oscillation in the injection stage for the HLS-II storage ring, some axially symmetric stripline BPMs were designed. Transverse quadrupole component for these BPMs was simulated and off-line calibrated. Beam transverse quadrupole oscillation has been measured when beam was injected into the HLS-II electron storage ring. The spectrum of the transverse quadrupole component showed that beam transverse quadrupole oscillation is very obvious in the injection stage and this oscillation isn’t the second harmonic of beam betatron oscillation. The relationship between transverse quadrupole oscillation and beam current was also analyzed and the result shows that the relationship is not linear. PB - JACoW Publishing CP - Geneva, Switzerland SP - 325 EP - 327 KW - quadrupole KW - storage-ring KW - injection KW - betatron KW - electron DA - 2019/01 PY - 2019 SN - 978-3-95450-201-1 DO - DOI: 10.18429/JACoW-IBIC2018-TUPC12 UR - http://jacow.org/ibic2018/papers/tupc12.pdf ER -