Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2012, Vol. 23 ›› Issue (5): 261-266 doi: 10.13538/j.1001-8042/nst.23.261-266

• SYNCHROTRON TECHNOLOGY AND APPLICATIONS • Previous Articles     Next Articles

Development and application of the new BPM system data processing program at Hefei light source

MA Tianji YANG Yongliang SUN Baogen* ZOU Junying LU Ping ZHOU Zeran XU Hongliang   

  1. School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230029, China
MA Tianji, YANG Yongliang, SUN Baogen, ZOU Junying, LU Ping, ZHOU Zeran, XU Hongliang. Development and application of the new BPM system data processing program at Hefei light source.Nuclear Science and Techniques, 2012, 23(5): 261-266     doi: 10.13538/j.1001-8042/nst.23.261-266

Abstract:

A data processing program has been applied for the new beam position monitor (BPM) system of the storage ring at Hefei Light Source (HLS). The new BPM system in the upgrade project will be equipped with Libera Brilliance BPM processors to replace the old Bergoz MX-BPM processors. The embedded Linux system on Libera has completed some important work, including instrument status check,data acquisition, position calculation, EPICS IOC data release,and so on. A new EPICS record type has been developed to recalculate the beam position with log-ratio method. The property of the new position data was analyzed in the time and frequency domain. The results show that the rms value of beam position measurement resolution can be up to submicron. Preliminary studies have been carried out on the measurement of the tune and the beam lifetime with this new BPM system.

Key words: BPM, EPICS IOC, Libera Brilliance, Log-ratio method