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Proceedings Paper

Measure of the transverse coherence of a self amplified spontaneous emission of a free electron laser with the heterodyne speckles method
Author(s): M. Siano; B. Paroli; M. Manfredda; M. Alaimo; M. A. C. Potenza
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Paper Abstract

We describe the method of Heterodyne Near Field Speckles (HNFS) for the characterization of spatial and temporal coherence of radiation. The method relies on the statistical properties of the speckle field produced by spherical particles randomly distributed and suspended in a fluid. We report preliminary results obtained with broadband light sources. We discuss the results obtained with the Self-Amplified Spontaneous Emission free electron laser SPARC LAB. This method will enable to calibrate and realize a diagnostics for the X-ray, broadband betatron radiation emitted in laser-plasma accelerators.

Paper Details

Date Published: 12 May 2015
PDF: 7 pages
Proc. SPIE 9512, Advances in X-ray Free-Electron Lasers Instrumentation III, 95120B (12 May 2015); doi: 10.1117/12.2183353
Show Author Affiliations
M. Siano, Univ. degli Studi di Milano (Italy)
B. Paroli, Univ. degli Studi di Milano (Italy)
M. Manfredda, Univ. degli Studi di Milano (Italy)
Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
M. Alaimo, Univ. degli Studi di Milano (Italy)
Politecnico di Milano (Italy)
M. A. C. Potenza, Univ. degli Studi di Milano (Italy)


Published in SPIE Proceedings Vol. 9512:
Advances in X-ray Free-Electron Lasers Instrumentation III
Sandra G. Biedron, Editor(s)

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