X-Band RF Harmonic Compensation for Linear Bunch Compression in the LCLS | Zendy

P. Emma | Zendy

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X-Band RF Harmonic Compensation for Linear Bunch Compression in the LCLS

Author(s) -

P. Emma

Publication year - 2005

Language(s) - English

Resource type - Reports

DOI - 10.2172/839647

Subject(s) - physics , synchrotron radiation , compression (physics) , harmonics , synchrotron , linear particle accelerator , optics , compensation (psychology) , harmonic , high harmonic generation , computational physics , radio frequency , voltage , acoustics , laser , electrical engineering , engineering , beam (structure) , quantum mechanics , psychology , psychoanalysis , thermodynamics

An X-band 4th harmonic RF section is used to lin earize the bunch compression process in the Linac Coherent Light Source (1). The optimum voltage is calculated to compensate both for the second-order RF time-curvature, and for the second-order momentum compaction terms. This compensated compression retains, to a much higher degree, the initial temporal distribution of the bunch, reducing the effects of coherent synchrotron radiation (2), and also reduces the sensitiv ity of the final compression to bunch arrival time variations.

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