Seminar by Veronica Teixeira

by Verônica Teixeira (Brazilian Synchrotron (Sirius)

Thursday 20 Oct 2022, 13:00 → 14:00 Europe/Stockholm

MAX II meeting room (MAX IV Laboratory)

Carnaúba – the nanoprobe beamline of Sirius/LNLS: commissioning and first experiments 

Veronica Teixeira, on behalf of the Carnaúba Team

The Coherent X-ray Nanoprobe Beamline (Carnaúba) of Sirius, the 4th generation synchrotron source of the Brazilian Synchrotron Light Laboratory (LNLS), is a multi-analytical nanoprobe that operates from 2.05 to 15 keV with resolving power of ΔE/E =10-4 in monochromatic mode. Its optics is based on all-achromatic mirrors, with KB mirrors for the beam focalization on the sample position. It has two endstation: Tarumã (Tender-to-hard X-ray for sub-micro analysis; and Sapoti (Scanning Analysis by Ptycho for Tomographic Imaging) with capabilities for 2D and 3D studies based on X-ray diffraction (XRD), X-ray absorption (XAS), X-ray fluorescence (XRF), X-ray excited optical luminescence (XEOL), Bragg and ptychographic coherent diffractive imaging (Bragg-CDI and ptycho-CDI).

The first endstation entering in operation, Tarumã, works with submicrometric beam, presents variable sample environments with innovative instrumentation for studies in operando, in situ, cryogenic, and ambient conditions, which allows to cover a large scientific program that ranges from agriculture, energy materials, catalysis, geoscience, photonics to cultural heritage, and others. In this talk, it will be presented an overview of the beamline commissioning and first results obtained at this endstation.