- You are here:
Alamgir Awarded MRI Grant by the National Science Foundation: Energy-tunable x-ray Analytical Characterization Tool (EXACT)
A major research instrumentation (MRI) grant awarded to Professor Faisal Alamgir and his co-PI team by the National Science Foundation (NSF), will help answer a critical research-infrastructure need at Georgia Tech. The award of $475k will fund the acquisition of an instrument that can directly measure the element-specific local atomic structure and the chemical-state from the bulk of materials. Typically, such measurements require synchrotron facilities, which, for Georgia Tech, are quite remote (more than 500 miles awy for the closest one). The instrument, an energy-tunable x-ray analytical characterization tool (EXACT), will provide comparable energy range of 2-12 keV and energy resolution (of about 1eV) to those at standard synchrotron beamlines. EXACT will enable near-edge and the extended- x-ray absorption fine structure (XANES and EXAFS) measurements as well as high-resolution x-ray emission spectroscopy (XES), which, collectively, provide element-specific local atomic and chemical information. One will be able to, for example, nondestructively determine the chemical state of constituent atoms from buried regions within the bulk of a material, and measure detailed atomic structure without relying on long-range periodicity (i.e. the local structure of amorphous materials can be measured).
The instrument will serve as a platform for in-depth scholar training on both the theory behind and the experimental methods stemming from radiation-matter interactions. Furthermore, EXACT will merge well into existing laboratory modules of the GT graduate and the undergraduate curriculum. Finally, it is envisioned that EXACT will serve as the locus of a regional training hub for new, proficient users of world-class synchrotron facilities.