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Electro-optic techniques for temporal profile characterisation of relativistic Coulomb fields and coherent synchrotron radiation

Jamison, S.P. and Berden, G. and MacLeod, A.M. and Jaroszynski, D.A. and Redlich, B. and Van der Meer, A.F.G. and Gillespie, W.A. (2006) Electro-optic techniques for temporal profile characterisation of relativistic Coulomb fields and coherent synchrotron radiation. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 557 (1). pp. 305-308. ISSN 0168-9002

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Abstract

Electro-optic (EO) detection of relativistic Coulomb fields offers a method for non-destructive longitudinal profile measurements of ultrashort bunches. Techniques for single-shot EO characterisation of Coulomb fields which have been developed or demonstrated at the FELIX free electron laser (FEL) facility are discussed. In addition, recent FELIX experiments have used single-shot electro-optic detection to measure the temporal profile of the far-infrared electric field pulse of coherent synchrotron radiation (CSR), initial results of which are reported here. Such time-resolved CSR measurements have the potential for a completely non-invasive bunch longitudinal profile determination, without the ambiguity in profile that is present in CSR spectral measurements.