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Measurement of RF Resonances and Measured Impact on Transverse Multibunch Instabilities from In-vacuum Insertions Devices

DOI: 10.18429/JACoW-IPAC2017-WEPIK102 DOI Help

Authors: G. Rehm (Diamond Light Source)
Co-authored by industrial partner: No

Type: Conference Paper
Conference: IPAC2017
Peer Reviewed: No

State: Published (Approved)
Published: May 2017

Abstract: Diamond Light Source has currently 15 in-vacuum insertion devices (ID) installed, mostly built in-house. Their measured impact on multi-bunch mode damping as a result of varying magnet gap was shown before, now we augment these with measurements of broadband frequency spectra with stored beam obtained using an antenna placed in the ID vacuum. Finally, we present off-line measurements of resonances in the ID vessel acquired using a vector network analyser and two antennae installed in-vacuum.

Journal Keywords: vacuum; resonance; damping; coupling; dipole

Subject Areas: Technique Development

Technical Areas: Vacuum