Beam Instrumentation Performances through the ESRF-EBS Commissioning
11
L. Torino
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
N. Benoist, F. Ewald, E. Plouviez, J.L. Pons, B. Roche, K.B. Scheidt, F. Taoutaou, F. Uberto
ESRF, Grenoble, France
The upgrade of the European Synchrotron Radiation Facility (ESRF) storage ring has lead to the construction of a new machine called the Extremely Brilliant Source (EBS). EBS has been successfully commissioned in less than three month and reached the targeted parameters for user mode. The success of the EBS commissioning also depended on the performances and the reliability of the beam instrumentation used to monitor the beam. In this paper a summary of the EBS commissioning is presented with a special focus on the beam instrumentation performances.
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Simulation Methods for Transverse Beam Size Measurements Using the Heterodyne Near Field Speckles of Hard X-rays
272
A. Goetz, D. Butti, S. Mazzoni, G. Trad
CERN, Geneva, Switzerland
U. Iriso, A.A. Nosych, L. Torino
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
B. Paroli
Universita’ degli Studi di Milano, Milano, Italy
M.A.C. Potenza, M. Siano
Universita’ degli Studi di Milano & INFN, Milano, Italy
L. Teruzzi
Università degli Studi di Milano, Milano, Italy
The Heterodyne Near Field Speckles (HNFS) is a special type of interferometry technique where radiation is scattered by nanoparticles suspended in a medium. The scattered waves and the transmitted radiation form an interference pattern, which is modulated by the spatial coherence of the radiation and by the scattering properties of the nanoparticles. The superposition of many such interference patterns results in a speckle pattern, from which the spatial coherence of the radiation and thus the transverse beam profile can be determined. In this contribution we present approaches for simulating the HNFS patterns from hard X-ray radiation and compare then with data from experiments at the ALBA synchrotron.
