The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Zhu, D.C. AU - Cao, J.S. AU - Sui, Y.F. AU - Wang, J.Q. AU - Yue, J.H. AU - Zhang, W. ED - Kim, Changbum ED - Schaa, Volker R. W. ED - Kim, Dong-Eon ED - Lee, Jaeyu TI - Longitudinal Impedance Measurements With Streak Camera at BEPC II Electron Storage Ring 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 - We measure the bunch length at BEPC II electron storage ring using a dual sweep streak camera at visible light diagnostic beamline. The impedances estimated by a series R+L impedance model. Resistive impedance of R=446±21 Ω is obtained by measuring loss factor from measured synchronous phase advancing with streak camera. An inductance impedance of L=23.3±1.8 nH has been estimated by measuring single bunch lengthening with beam current. Both loss factor and inductance are close to the impedance budget. Besides, the streak cam-era is also used to measure synchronous phase at low current as RF voltage changing from 0.85 MV to 1.65 MV. PB - JACoW Publishing CP - Geneva, Switzerland SP - 353 EP - 355 KW - impedance KW - synchrotron KW - electron KW - storage-ring KW - radiation DA - 2021/10 PY - 2021 SN - 2673-5350 SN - 978-3-95450-230-1 DO - doi:10.18429/JACoW-IBIC2021-WEPP01 UR - https://jacow.org/ibic2021/papers/wepp01.pdf ER -