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 


► Texture, anisotropy, and fracturing of shale under pressure and temperature.

Lowell Miyagi from the University of Utah, and Waruntorn Kanitpanyacharoen from Stanford University, used the multi-anvil press D-DIA assembly at 13 BMD, GSECARS, to deform shales to failure while collecting x-ray diffraction and radiography images. Diffraction images will be used to extract to texture and lattice strain evolution and radiography will be used to measure macrostrain and determine failure. Click.


Science Highlight

A group lead by Haijun Xu, China University of Geosciences, performed x-ray computed micro-tomography at GSECARS 13 BMD,
to help decipher the graphic texture of granitic rocks.  
Click.

A movie showing a series of cross-sections sub-parallel to the
(010)Kfs, based on 3D tomographic reconstruction on an
approximately 5 × 5 × 5 mm cube. Brightness of the features
reflects primarily density. Darkest areas are air (note voids
present in the sample), dark gray is quartz, and light gray is
feldspar. Very bright features are inclusions in the sample
with very high density.

Haijun Xu, Junfeng Zhang, Tony Yu, Mark Rivers,
Yanbin Wang, Shanrong Zhao, "Crystallographic evidence for simultaneous growth in graphic granite," Gondwana Res. 27
(4), 1550-1559 (2015). DOI: 10.1016/j.gr.2014.01.013