Femto-second synchronisation with a waveguide interferometer

Dexter, Amos Christopher and Smith, Samuel Jack and Woolley, Ben and Grudiev, A. (2018) Femto-second synchronisation with a waveguide interferometer. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 884. pp. 51-58. ISSN 0168-9002

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Abstract

CERN’s compact linear collider CLIC requires crab cavities on opposing linacs to rotate bunches of particles into alignment at the interaction point (IP). These cavities are located approximately 25 metres either side of the IP. The luminosity target requires synchronisation of their RF phases to better than 5 fs r.m.s. This is to be achieved by powering both cavities from one high power RF source, splitting the power and delivering it along two waveguide paths that are controlled to be identical in length to within a micrometre. The waveguide will be operated as an interferometer. A high power phase shifter for adjusting path lengths has been successfully developed and operated in an interferometer. The synchronisation target has been achieved in a low power prototype system.

Item Type:
Journal Article
Journal or Publication Title:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/aacsb/disciplinebasedresearch
Subjects:
ID Code:
89043
Deposited By:
Deposited On:
04 Dec 2017 09:52
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 10:33