TIME-RESOLVED SYNCHROTRON X-RAY COMPUTED TOMOGRAPHY AS A TOOL FOR GROUNDWATER REMEDIATION Nathaly Lopes Archilha 1 Gabriel Schubert Costa 1 , Tannaz Pak 2 1 Brazilian Synchrotron Light Laboratory (LNLS/CNPEM) and 2 Teesside University [email protected]
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TIME-RESOLVED SYNCHROTRON X-RAY COMPUTED
TOMOGRAPHY AS A TOOL FOR GROUNDWATER
REMEDIATION
Nathaly Lopes Archilha1
Gabriel Schubert Costa1, Tannaz Pak2
1Brazilian Synchrotron Light Laboratory (LNLS/CNPEM) and 2Teesside University
Large Microscope: most interesting/challenging materials, with nanometricresolution and several contrast mechanisms
Experimental ProgramsTender nano-probe for spectro-ptychography; Large FOV (40 mm) coherent diffraction imaging; Bragg CDI/XRD/XAFS under extreme conditions; Serial micro and nano MX; Tender x-ray RIXS; Time resolved powder diffraction; High-throughput SAXSARPES/XMCD; AP-RIXS/XPS; CDI/PEEMCone beam high energy tomography; EXAFS; High energy X-Ray diffraction; Nano-FTIR
X-ray computed tomography
Mogno Beamline @SiriusCone beam x-ray imaging
Energy Range ˜20, 40 and 70 keV
Resolution ˜ 100 nm to 55mm
Field of View up to 85 mm (zoom-in)
Contrast Electron density, phase contrast
Dose Very efficient
Speed Fast (~1 mCTs/s)
Equivalent to parallel beam with:
Magnification:
1.5” rock and soil samples
A 3D image in 1 second
~1 mm ~20 mm
Applications – zoom tomographyfrom hundreds of nm to dozens of micrometers
- Zoom tomography: reveal unresolved connections between pores
- Truly non destructive scans (cone beam)
- No special sample preparation required
Application: time-resolved XCT
More extreme conditions
Application: In-situ degradation of TCE using nZVI nanoparticles
Application: In-situ degradation of TCE using nZVI nanoparticles