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 - Lin, L. AU - Liu, X.Y. AU - Lu, P. AU - Sun, B.G. AU - Wei, J.H. AU - Yang, Y.L. AU - Zhou, T.Y. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Preliminary Design and Calculation of Button BPM for the HALS Storage Ring J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - Button BPM is being designed for the HALS storage ring, which is a diffraction-limited storage ring (DLSR) located at the NSRL in Hefei city. Since beam size is very small, the required resolution of 50 nm for beam position measurement need to be obtained. The parameters of the HALS Button BPM are initially determined. According to theoretical formulas, electrode induced signal is calculated and the relationship between electrode induced signal and beam current is obtained. Signal to noise ratio(SNR)of the HALS Button BPM is calculated with different beam current when the required resolution is 50 nm. The results show that the SNR is well when beam current is very low. In addition, the effects of BPM RF frequency and button electrode radius on SNR are analyzed. PB - JACoW Publishing CP - Geneva, Switzerland SP - 4929 EP - 4931 KW - storage-ring KW - vacuum KW - HOM KW - electronics KW - impedance DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-THPML112 UR - http://jacow.org/ipac2018/papers/thpml112.pdf ER -