Data di Pubblicazione:
2009
Citazione:
Probing the transverse coherence of an undulator X-ray beam using Brownian particles / M.D. Alaimo, M.A.C. Potenza, M. Manfredda, G. Geloni, M. Szutcki, T. Narayanan, M. Giglio. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 103:19(2009), pp. 194805.194805.1-194805.194805.4.
Abstract:
We present a novel method to map the two-dimensional transverse coherence of an x-ray beam using
the dynamical near-field speckles formed by scattering from colloidal particles. Owing to the statistical
nature of the method, the coherence properties of synchrotron radiation from an undulator source is
obtained with high accuracy. The two-dimensional complex coherence function is determined at the
sample position and the imaging optical scheme further allowed us to evaluate the coherence factor at the
undulator output despite the aberrations introduced by the focusing optics.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
M.D. Alaimo, M.A.C. Potenza, M. Manfredda, G. Geloni, M. Szutcki, T. Narayanan, M. Giglio
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