Laboratório Nacional
de Luz Síncrotron





Leader: Santiago J. A. Figueroa
Telephone: +55 19 3517 5063

Beamline Email:
Beamline Telephone: +55 19 3512 1246

The XAFS2 Beamline Group is responsible for managing and operating the XAFS2 Beamline dedicated to X-ray Absorption Spectroscopy in the current UVX synchrotron light source of the Brazilian Synchrotron Light Laboratory (LNLS).

The team of researchers and technicians are responsible for assembling the instrumentation necessary for performing the experiments. They are responsible for advising users in the operation of the equipment, collection and processing of the data obtained in the XAFS2 beamline.


The XAFS2 beamline is an experimental station dedicated to X-ray Absorption Spectroscopy in the hard x-rays energy range (3.5 to 17.0 keV). It focus on the study of the atomic-level structure as well as in the electronic and magnetic properties of matter, with applications in a wide range of scientific fields, such as atomic and molecular physics, chemistry, biology, environmental and geosciences and cultural heritage. Experimental techniques available include Fluorescence Spectroscopy, X-ray Excited Optical Luminescence, X-ray Reflectivity and Combined X-ray Absorption Fine Structure and X-Ray Diffraction.



Name Position TelephoneEmailCV
Santiago Jose Alejandro FigueroaResearcher, Leader+55 19 3517
Junior Cintra MauricioScientific Associate
Marta Venancia Franca RodriguesMaster Student
Matheus Macedo Pereira LimaUndergraduate Research Assistant


XAFS2: Fluorescência / Fluorescence

Visão detalhada da configuração para medições de fluorescência na Linha de Luz XAFS2. Um goniômetro (em marrom) ajuda a posicionar a amostra com o melhor ângulo para maximizar o sinal de fluorescência. Um detector Canberra Ge-15 elementos é usado para obter o sinal de fluorescência.

A detailed view of the setup for fluorescence measurements at XAFS2 beamline. A goniometer (in brown) helps placing the sample attached on a slide at the best angle in order to maximize the fluorescent signal. A Ge-15 elements Canberra detector is used to collect the fluorescence signal.


Visão Monochomador de Cristal Duplo. Motores de picômetro controlam rotações nos três eixos e são mostrados na parte superior do segundo cristal. Água é usada para manter uma temperatura constante de 24ºC no primeiro cristal.

Close view of the Double Crystal Monochromator. Picometer motors that control the pitch, roll and yaw displacements are shown at the top of the second crystal. Water is used to maintain a fixed temperature of 24ºC in the first crystal.

XAFS2: Cabana Óptica / Optical Hutch

VIsão geral da Cabana Óptica. Da esquerda para direita: primeira câmara de espelho (forma retangular), câmara do monocromador DCM (forma cilíndrica) e segunda câmara de espelho (forma retangular).

Overview of the optical hutch. From left to right: first mirror chamber (rectangular shape), DCM monochromator chamber (cylindrical shape) and second mirror chamber (rectangular shape).

XAFS2: Visão Geral / Overview

Visão geral das estações da Linha de Luz XAFS2.

Overview of the XAFS2 beamline stations.

XAFS2: Aquisição de Dados / Data Acquisition

Processo de aquisição de dados na Linha de Luz XAFS2.

Data acquisition process at the XAFS2 beamline.