A New Method for Determining the Size of a Synchrotron Radiation Beam in the Focus of a Compound Refractive Lens
Crystallography Reports(2023)
Abstract
A new method is proposed for determining experimentally the size of a synchrotron radiation beam in the focus of planar compound refractive lenses. The method consists in measuring the angular divergence of radiation after the focus using Bragg diffraction in a perfect crystal during its rotation. This method determines the beam size, which depends only on the focusing properties of the lenses in use, in contrast to other currently applied methods. The efficiency of the proposed approach has been experimentally demonstrated using nanofocusing planar silicon lenses as an example.
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Key words
synchrotron radiation beam,lens,focus
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