Initially conceived to perform chemical and mineralogical testing for NASA’s Mars Science Laboratory (MSL) mission, Olympus’ TERRA is a rugged, fully portable field instrument which harnesses advanced dual XRD/XRF technology and renders it for earthbound applications. Combining both Olympus and NASA innovation, TERRA brings to life a new way of performing X-ray diffraction and X-ray fluorescence measurements.
Using a specifically developed direct excitation charge coupled device (CCD) “camera”, TERRA is able to collect X-ray photon data for both X-ray diffraction and X-ray fluorescence simultaneously. This is the result of the integrated camera’s ability to detect both photon position and photon energy at the same time. With energy resolution of ~200 eV (5.9 keV), TERRA makes XRF analysis as simple as viewing the software spectrum display.
TERRA radically simplifies sample collection for your X-ray diffraction experiments. Typically, a sample must be finely ground and pressed into a pellet in order to ensure a sufficiently random orientation of the crystals.
TERRA’s patented sample vibration chamber eliminates this issue. Requiring a mere 15 mg sample, the vibration chamber’s convection process presents the instrument optics with multifarious orientations of the crystalline structure. This results in a superb X-ray diffraction pattern, virtually free of the problematic preferred-orientation effects encountered when using classic preparation methods.
Due to its unique powder-handling system, nonmechanical goniometers, and lack of complicated moving parts, TERRA is extremely well suited for those applications where field portability and/or ease of use is at issue.
X-ray Diffraction Data
Search/Match & XRD Quantitative Analysis Software Included
X-ray Fluorescence Data
Qualitative XRF Scan
TERRA is shipped with the necessary software (XPowder) for processing the resulting X-ray diffraction data. This includes the AMSCD mineral database.
For quantitative analysis, XPowder comes complete with reference intensity ratio (RIR) quantitative analysis methods as well as full-pattern analysis tools.
Furthermore, TERRA provides XRD pattern data in a variety of file formats, making XRD pattern interpretation in third-party programs easily accessible.
TERRA operates off software embedded in the unit itself. The user accesses the operating system through a wireless connection (802.11b/g). This remote operation method allows for a wide degree of flexibility in controlling the instrument and subsequent data handling.
|XRD resolution||0.25° 2θ FWHM|
|XRD range||5-55° 2θ|
|Detector type||1024 × 256 pixels - 2D Peltier-cooled CCD|
|XRF energy resolution||250 eV at 5.9 keV|
|XRF energy range||3 to 25 keV|
|Sample grain size||<150 μm crushed minerals - (100 mesh screen, 150 μm)|
|Sample quantity||~15 mg|
|X-ray target material||Cu or Co (Cu standard)|
|X-ray tube voltage||30 kV|
|X-ray tube power||10 W|
|Data Storage||40 GB - Ruggedized internal hard drive|
|Wireless Connectivity||802.11b/g for remote control from web browser|
|Operating Temperature||-10 °C to 35 °C|
|Weight||14.5 kg with four batteries|
|Size||48.5 cm × 39.2 cm × 19.2 cm (19.1 in. × 15.4 in. × 7.6 in.)|
|Enclosure||IP67, MIL C-4150J rugged case|
|Field autonomy||~4 hours (hot swap batteries)|
Portable XRD/XRF has completely revolutionized geochemical exploration, mine grade control, metallurgical and process analysis, on-site HAZMAT inspections and in-field counterfeit pharmaceutical determinations. The TERRA's high quality data and speed of analysis delivers quantitative real-time compositional chemistry, right at the point of the sample location, where you need it most.