Operational status of the transverse multibunch feedback system at Diamond

Authors: I. Uzun (Diamond Light Source) , M. Abbott (Diamond Light Source) , M. T. Heron (Diamond Light Source) , A. F. D. Morgan (Diamond Light Source) , G. Rehm (Diamond Light Source)
Co-authored by industrial partner: No

Type: Conference Paper
Conference: ICALEPCS 2011
Peer Reviewed: Yes

State: Published (Approved)
Published: October 2011

Abstract: A transverse multibunch feedback (TMBF) system is in operation at Diamond Light Source to damp coupled-bunch instabilities up to 250 MHz in both the vertical and horizontal planes. It comprises an in-house designed and built analogue front end combined with a Libera Bunch-by-Bunch feedback processor and output stripline kickers. FPGA-based feedback electronics is used to implement several diagnostic features in addition to the basic feedback functionality. This paper reports on the current operational status of the TMBF system along with its characteristics. Also discussed are operational diagnostic functionalities including continuous measurement of the betatron tune and chromaticity

Journal Keywords: Beam Bunching; Beam Monitoring; Closed-Loop Control; Control Systems; Feedback; Synchrotron Radiation Sources

Subject Areas: Technique Development

Technical Areas: Controls