ABOUT THIS BEAMLINE
The SGM beamline is dedicated to the spectroscopy in the soft x-rays (250 to 1200 eV) energy range. It focus on the electron spectroscopy of surfaces and absorption spectroscopy of low atomic number elements and first row transition metals with applications to atomic and molecular physics, surface science, materials science and condensed matter physics.
The SGM is a 1.67T dipole beamline providing users with monochromatic tunable photon beam in the soft X-ray range with mild resolving power and sub-milimetric spot size. Different techniques can be employed at the SGM using the endstations available at the LNLS, including X-ray Absorption Spectroscopy (XANES), X-ray scattering and reflectivity, and Photoelectron Spectroscopy (XPS).
The soft x-rays produced at SGM are valued for the unique chemical state sensitivity to light elements such as carbon, oxygen and nitrogen highly important as constituents of life and involved in many technological applications from agriculture and environment to health and nanotechnology. The soft X-rays can also probe the absorption edges of first row transition metal and rare-earth lanthanides important for correlated electron materials, catalysis and energy storage. Moreover, in electron spectroscopy such as XPS, soft X-rays sources are valuable to generate low kinetic energy electrons with very high surface sensitivity up to few atomic layers.