Welcome to BL5.2
Welcome to the SUT-NANOTEC-SLRI XAS Beamline (BL5.2). We offer advanced X-ray Absorption Spectroscopy (XAS) to characterize the local atomic structure and chemical states of materials. Our facility is dedicated to supporting academic and industrial research through specialized XAS techniques.
BL5.2 Contact
Principal Beamline Scientist
Dr. Wanwisa Limphirat
Email: wanwisa@slri.or.th
Tel: +66 44 217 040 ext 1480
SUT-NANOTEC-SLRI XAS Beamline (BL5.2)
BL5.2 has been constructed for the project ‘SUT-NANOTEC Joint Research Facilities for Synchrotron Utilization’ at the Synchrotron Light Research Institute. The scientists and researchers from these three organizations (SUT, Nanotec and SLRI) will work together in scientific research and development with synchrotron radiation.
SUT-NANOTEC-SLRI beamline (BL5.2) is dedicated to X-ray Absorption Spectroscopy (XAS) technique. It can be used to determine chemical speciation and local structure (type of neighboring atoms, coordination number, inter-atomic distance) of the absorbing atom. Moreover XAS is a non-destructive tool which can be carried out on any type of material, e.g. solids (crystalline or amorphous), liquids and gases, under non-ambianted conditions (pressure and temperature control). Moreover, can be employed to study samples in different scientific areas, such as materials science, biology, environmental science, archeology and geology.
Figure 1: Schematic of the Fixed-Exit Double Crystal Monochromator (DCM) at BL5.2.
X-ray Absorption Near Edge Structure (XANES) spectroscopy is an ideal non-destructive technique for characterizing and quantifying S species in compositionally complex materials such as minerals, coals, soils and rubber. Shifts in the position of the absorption-edge feature of S K-edge XANES spectra can be applied for determining the oxidation state of both inorganic and organic species of sulfur. XANES spectra can be also used as fingerprints to identify the coordination chemistry.
BL5.2 uses a design similar to BL8 with an in-house fabricated fixed-exit double crystal monochromator (DCM). The x-ray energy is tunable by a DCM equipped with several types of crystal for covering photon energy from 1240 eV to 12100 eV. K-edge absorption of Magnesium up to Gallium can be studied. Other heavier atomic species can be investigated via L or M edges. BL5.2 was designed by engineer and scientist team at SLRI. Most of components were in-house fabricated. The beamline has been installed and commissioned. It is available for users since March 2013.
Since BL5.2 is a joint project between SUT, Nanotec and SLRI, BL5.2 beamtime will be provided equally to these three organizations. A major part of SLRI beamtime will be given to general users who submit their beamtime applications via our website.