The possibility to characterize the coherence properties of an electron source is presented. The method, based on the determination of centered-reduced moments of the beam spot, allows the evaluation of both amplitude and phase of the complex degree of spatial coherence. The experimental results are in agreement with a different approach based on the Fourier analysis and with calculations according to the Van Cittert-Zernike theorem. (C) 2006 Published by Elsevier GmbH.
Retrieving the complex degree of spatial coherence of electron beams / Carrasquilla-Alvarez, J; Castaneda, R; Garcia-Sucerquia, J; Schofield, Ma; Beleggia, M; Zhu, Y; Matteucci, G. - In: OPTIK. - ISSN 0030-4026. - 119:3(2008), pp. 127-133. [10.1016/j.ijleo.2006.07.007]
Retrieving the complex degree of spatial coherence of electron beams
Beleggia M;
2008
Abstract
The possibility to characterize the coherence properties of an electron source is presented. The method, based on the determination of centered-reduced moments of the beam spot, allows the evaluation of both amplitude and phase of the complex degree of spatial coherence. The experimental results are in agreement with a different approach based on the Fourier analysis and with calculations according to the Van Cittert-Zernike theorem. (C) 2006 Published by Elsevier GmbH.
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