Diamond Anvil Cell Program at GSECARS after APS-U
ORAL
Abstract
The Advanced Photon Source is opening again for research after a complex upgrade. The original electron storage ring was replaced with a new multi-bend achromat lattice to provide extremely enhanced coherent flux and increased hard X-ray brightness by a hundred times. To take full advantage of these improved capabilities we have started the process of comprehensive technical improvements and developments of multi-probe techniques across a suite of beamline stations at GSECARS.
To provide new constraints on models for planetary evolution and origin, essential properties (melting, structure, phase relation, chemical reactions and kinetics, transport, elastic, electronic and optical properties) of a wide range of minerals must be studied in-situ at extreme conditions of pressure and temperature. However, existing data sets are often inconsistent or poorly constrained to provide unique answers. This underscores the need for unique beamline capabilities: high-energy high-flux sub-micron X-ray beam to probe ultra-small samples (micron-sized) in megabar pressure range, high resolution large area fast X-ray and optical detectors for time-domain experiments, sample emissivity and absorption measurements to improve radiative temperature metrology etc. We plan to upgrade the X-ray and laser optics (Raman, Brillouin, fluorescence, absorption) at 13-ID-D, 13-BM-C and 13-BM-D stations to accommodate higher X-ray energies in a tighter focused beam, which grants a significant boost in the reciprocal space explored at high temperatures with increased spatial resolution.
Recent results and details of future developments of the cutting-edge synchrotron and optical techniques for comprehensive characterization of materials in-situ at extreme conditions will be discussed.
To provide new constraints on models for planetary evolution and origin, essential properties (melting, structure, phase relation, chemical reactions and kinetics, transport, elastic, electronic and optical properties) of a wide range of minerals must be studied in-situ at extreme conditions of pressure and temperature. However, existing data sets are often inconsistent or poorly constrained to provide unique answers. This underscores the need for unique beamline capabilities: high-energy high-flux sub-micron X-ray beam to probe ultra-small samples (micron-sized) in megabar pressure range, high resolution large area fast X-ray and optical detectors for time-domain experiments, sample emissivity and absorption measurements to improve radiative temperature metrology etc. We plan to upgrade the X-ray and laser optics (Raman, Brillouin, fluorescence, absorption) at 13-ID-D, 13-BM-C and 13-BM-D stations to accommodate higher X-ray energies in a tighter focused beam, which grants a significant boost in the reciprocal space explored at high temperatures with increased spatial resolution.
Recent results and details of future developments of the cutting-edge synchrotron and optical techniques for comprehensive characterization of materials in-situ at extreme conditions will be discussed.
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Presenters
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Vitali Prakapenka
University of Chicago, The University of Chicago, GSECARS, University of Chicago, Lemont, IL, US
Authors
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Vitali Prakapenka
University of Chicago, The University of Chicago, GSECARS, University of Chicago, Lemont, IL, US
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Stella Chariton
University of Chicago, GSECARS, University of Chicago, Lemont, IL, US
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Young Jay Ryu
The University of Chicago
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Dongzhou Zhang
CARS, University of Chicago, The University of Chicago