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Abstract
The CARNAÚBA beamline is the tender-to-hard X-ray (2 – 15 keV) scanning nanoprobe planned for the 4th generation storage ring SIRIUS at the LNLS. CARNAÚBA uses an undulator source with vertical linear polarization in a low-beta straight section and grazing incidence-focusing mirrors to create a nanoprobe at 143 m from the source. The beamline optic is based on KB mirrors and provides high brilliance at an achromatic focal spot down to the diffraction limit diameter of ∼30 nm with a working distance of ∼6 cm. These characteristics are crucial for studying nanometric samples in experiments involving complex stages and environments. The CARNAÚBA beamline aims to perform raster scans using x-ray fluorescence, x-ray absorption spectroscopy, x-ray diffraction and coherent x-ray imaging techniques. Computed tomography will extend these methods to three dimensions.
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Details
1 Laboratório Nacional de Luz Síncrotron - LNLS/CNPEM, C.P. 6192, 13083-970 Campinas, Brazil.; Université de Grenoble-Alpes and CNRS, Institut Néel, B.P. 166, 38042 Grenoble, France.
2 Laboratório Nacional de Luz Síncrotron - LNLS/CNPEM, C.P. 6192, 13083-970 Campinas, Brazil.