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CHESS Welcomes New Staff Scientist - Steve Meisburger
Steve is very interested in structural biology methods that let us see "molecular movies" -- i.e. how molecular machines like enzymes actually work. Diffuse scattering is one such method that he’s worked on with Nozomi Ando's group. But he’s also interested in using time-resolved techniques to include more types of perturbations, such as temperature, pressure, and electric fields.
Nanocrystals with Metastable High-Pressure Phases Under Ambient Conditions
Several spectroscopy techniques are implemented at CHESS for in-situ monitoring of materials properties, enabling simultaneous build-up of materials structure-property relations under real environments.
Diamonds are for focusing and monochromatizing: Chemically vapor deposited diamond crystal as medium resolution X-ray monochromator
Using CVD diamonds in X-ray monochromators enables affordable compact systems operable in a laboratory with conventional X-ray sources, under extreme conditions as high radiation heat load optics at synchrotrons, or, possibly, as compact remote X-ray instrumentation for planetary missions.
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Hopping Made Easy: Controlling Electronic Transport in CoₓMn₃₋ₓO₄ Nanoparticles
This work forms the starting point to understanding the mechanisms of charge transport in ternary spinel systems.
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Slip but not fail: New Insights into Microstructural Deformation Mechanisms in Al-Li Alloys
These new X-ray data are creating a path forward for the development of new microstructurally sensitive failure criteria.
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Less is more: Disorder raises the critical temperature of a cuprate superconductor
Developing materials that exhibit superconductivity at room temperature for wide spread commercial use would allow a significant reduction in energy consumption throughout the power grid.
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In-Situ Observations of Performance Evolution in Shape Memory Alloys
What did the Scientists Discover?
Researchers led by Professor Aaron Stebner's group at the Colorado School of Mines were able to elucidate important functional fatigue behaviors in a shape memory alloy (SMA) b
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Room temperature serial oscillation crystallography
What did the Scientists Discover?
Our team has developed a new serial crystallography method for rapid serial data collection with oscillation, lowering the total number of crystals needed. Crystals are deposited onto a silicon chip with thousands of microwells in precise locations. Using a piezoelectric translation stage, each crystal-containing microwell can be positioned in front of the X-ray beam rapidly and precisely. With oscillation, the total amount of data per crystal that can be obtained is improved, without effects from radiation damage.
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