A. Herring, OSU, uses tomography at 13 BMD to quantify pore scale trapping and to analyze how mechanisms affect the efficiency of capillary trapping of CO2 in saline aquifers.

Tomography at 13 BMD

Study in 'Science' finds missing piece of biogeochemical puzzle in aquifers using 13-ID-E's sulfur spectroscopy capabilities. Details in Argonne's press release

New paper in Science showcases the new sulfur capabilities at 13 IDE

X-ray diffraction patterns from a diamond anvil cell (DAC).

X-ray diffraction is the most powerful technique for crystal structure determination. From left to right, patterns from a single crystal, polychrystalline, nano-cyrstalline and amorphous crystals.

X-ray diffraction patterns from a diamond anvil cell.

High pressure x-ray tomographic microscopy module

The HPXTM module helps researchers study the texture change of their sample under extreme pressure and temperature conditions by collecting in-situ HP/HT 3D x-ray tomographic images.

High Pressure X-ray Tomographic Microscopy Module sitting outside of the 250 ton press in 13 BMD.

Peter Hong, Python Tomography Data Collection Project; Andrea Bryant, Determination of Cr, Ti, & V Valences in Olivine & Pyroxene from Ureilites; Catherine Eng, Design a Low Cost Inelastic X-ray Scattering Analyzer

GSECARS Summer Students 2014

GSECARS is a national user facility
for frontier research in the earth sciences using synchrotron radiation at the
Advanced Photon Source, Argonne National Laboratory.

GSECARS provides earth scientists with access to the high-brilliance hard x-rays from this third-generation synchrotron light source. All principal synchrotron-based analytical techniques in demand by earth scientists are being brought to bear on earth science problems:

  • High-pressure/high-temperature crystallography and spectroscopy using the diamond anvil cell
  • High-pressure/high-temperature crystallography and imaging using the large-volume press
  • Powder, single crystal and interface diffraction
  • Inelastic x-ray scattering
  • X-ray absorption fine structure spectroscopy
  • X-ray fluorescence microprobe analysis
  • Microtomography       
     

► Deadline for General User Proposals for 2015-2
Friday, March 6, 2015 (11:59pm, CST)
Apply for Beamtime

 

► Tales from the Crypt:
A 6th Century Queen Visits GSECARS

The Merovingian Queen Arégonde, daughter-in-law of the Frankish king Clovis, died in ~580 AD and more than 1400 years after her death scientists at GSECARS, Sector 13 at APS are using powerful X-ray microscopes to analyze preserved tissue samples from this important historical figure. Entombed in what is now the Royal Basilica of Saint-Denis near Paris, Queen Arégonde's remains were discovered in 1959. Now a team of international scientists that includes University of Chicago researchers using the GSECARS beamlines are using sophisticated X-ray microanalysis techniques to provide a unique insight in to her life and the culture of France during the early Middle Ages.

 

► Science Highlight

Work done at GSECARS by a group lead by Marine Cuisinier, University of Waterloo, investigated trisulfur radicals in lithium-sulfur batteries using the sulfur capabilities at
13 IDE.

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In nonaqueous electrolytes, dissociation of polysulfide dianions to radicals, and particularly trisulfur S3·−, is believed to play a key role in the performance of lithium sulfur batteries. While S3·− exists in only minor concentration in glymes, exacerbated dissociation in donor solvents allows full utilization of both sulfur and lithium sulfide..

Cuisinier, M., Hart, C., Balasubramanian, M., Garsuch, A. and Nazar, L. F. (2015), Radical or Not Radical: Revisiting Lithium–Sulfur Electrochemistry in Nonaqueous Electrolytes. Adv. Energy Mater.. doi: 10.1002/aenm.201401801
Click.