Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session L05: The Changing Landscape of X-ray Facilities
11:15 AM–1:39 PM,
Wednesday, March 7, 2018
LACC Room: 152
Sponsoring Unit: GIMS
Chair: Janos Kirz, Lawrence Berkeley National Laboratory
Abstract: L05.00004 : Innovations in Laboratory X-ray Technology Brings Synchrotron Capabilities to Your Lab.
1:03 PM–1:39 PM
X-ray techniques offer capabilities with unique intrinsic advantages, including determining crystallographic structure using XRD, chemical composition using XRF, atomic structure using EXAFS, oxidation state using XANES, and x-ray imaging (Radiography and CT). Additionally, those capabilities can be used to study real objects under real operating conditions. Those capabilities have motivated the construction of numerous synchrotron radiation facilities at the cost of many hundreds of million dollars worldwide. Sigray is developing innovations in laboratory x-ray technologies that will bring numerous synchrotron capabilities to individual labs. The innovations include high brightness x-ray sources, advanced x-ray optics, and innovative system designs. The Sigray FAAST™ source features an anode comprised of arrays of metal (e.g. Cu, W) microstructures as x-ray emitters embedded in a diamond substrate, which enables highly localized and large thermal gradients to passively and rapidly cool the metal microstructures as x-rays and heat are generated under the bombardment of electrons. The thermal advantages of the x-ray source will critically enable the use of many elements that were previously considered unfeasible as x-ray source materials, and therefore will enable access to new x-ray characteristic lines to optimize performance in monochromatic x-ray analysis. The source enables linear accumulation of x-rays along a set of microstructures, which further increases the substantial brightness gain. Sigray’s proprietary axially symmetric x-ray mirror lenses offer outstanding performance in terms of focusing efficiency, numerical aperture (NA), FWHM of point spread function, working distance, focus chromaticity, energy bandpass, energy transmission, source brightness preservation, and phase space acceptance. Sigray also developed several patented innovative systems for x-ray absorption spectroscopy, fluorescence analysis, diffraction, and imaging. I will present those innovative x-ray technologies and current status of their development.
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