Description
The Terra Field Portable X-ray Diffraction/X-ray Fluorescence is, simply put, the evolution of X-ray diffraction analysis. The technology used in the portable rock and mineral analyzer received a prestigious R&D 100 award and was chosen to fly on the Mars Science Laboratory Rover scheduled for launch in 2011. Check out the NASA site for more.
The Terra is the first truly portable combination XRF/XRD system designed specifically for rock and mineral analysis. Now field XRD work can really be done in the field. The Terra can be configured with everything you need to acquire and analyze diffraction data in a rugged compact case. With a patented sample handling system, not only is sample preparation time minimized, but accuracy in peak identification previously only available using laboratory based systems can be achieved.
Key Features/Benefits
Self-contained instrument – battery operated
Very simple sample preparation
loose powders (~20mg of sample)
sieve sample to <150?m
Easy to use, single button operation
True 2D powder XRD instrument
provides image of XRD pattern
See particle influences or prefered orientation
Energy discrimination X-ray detector
Eliminate Fluorescence, scatter and other background
XRF spectral data for pattern confirmation.
Spectification:
XRD resolution? 0.25o 2? FWHM
XRD range? 5 – 55o 2?
Detector type? 1024×256 pixels; 2D Peltier-cooled CCD
XRF energy resolution? 200eV at 5.9 keV
XRF energy range? 3 to 25 keV
Sample grain size? <150?m crushed minerals (100 mesh screen, 150?m)
Sample quantity? 15 mg
X-ray target material? Co or Cu (Co standard)
X-ray tube voltage? 30 kV
X-ray tube power? 10W
Data storage? 40 Gb – Ruggedized internal hard drive
Wireless connectivity? 802.11 b/g for remote control from web browser
Operating temperature? -10oC to 35oC
Weight? 14.5 kg with four batteries
Size? 48.5 x 39.2 x 19.2 cm (19.1 x 15.4 x 7.6 in)
Enclosure? IP67; MIL C-4150J rugged case
Field autonomy? ~ 4 hours (hot swap batteries)
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