Experiments using the heterodyne near field speckle method (HNFS) have been performed at ALBA to characterize the spatial coherence of the synchrotron radiation, with the ultimate goal of measuring both the horizontal and vertical electron beam sizes. The HNFS technique consists on the analysis of the interference between the radiation scattered by a colloidal suspension of nanoparticles and the synchrotron radiation, which in this case corresponds to the hard x-rays (12keV) produced by the in-vacuum undulator of the NCD-Sweet beamline. This paper describes the fundamentals of the technique, possible limitations, and shows the first experimental results changing the beam coupling of the storage ring.
Electron Beam Size Measurements Using the Heterodyne Near Field Speckles at ALBA / M. Siano, M.A.C. Potenza, B. Paroli, U. Iriso, C.S. Kamma-Lorger, A.A. Nosych, S. Mazzoni, G. Trad - In: Proceedings of IBIC2019[s.l] : JACoW, 2019 Nov 10. - ISBN 9783954502042. - pp. 1-4 (( Intervento presentato al 8. convegno IBIC 2019 tenutosi a Malmo nel 2019.
Electron Beam Size Measurements Using the Heterodyne Near Field Speckles at ALBA
M. Siano
Primo
;M.A.C. Potenza;B. Paroli;
2019
Abstract
Experiments using the heterodyne near field speckle method (HNFS) have been performed at ALBA to characterize the spatial coherence of the synchrotron radiation, with the ultimate goal of measuring both the horizontal and vertical electron beam sizes. The HNFS technique consists on the analysis of the interference between the radiation scattered by a colloidal suspension of nanoparticles and the synchrotron radiation, which in this case corresponds to the hard x-rays (12keV) produced by the in-vacuum undulator of the NCD-Sweet beamline. This paper describes the fundamentals of the technique, possible limitations, and shows the first experimental results changing the beam coupling of the storage ring.File | Dimensione | Formato | |
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