Itrax XRF Core Scanner
When you want the best
The Itrax XRF Core scanner is the flag ship among XRF scanners, with several unique features, and with world class performance in terms of speed of analysis, speed/performance ratio, detection limits, data reproducibility, and documented ability to quantify the concentrations of the elements found in samples. The first instrument of this type was delivered to National Oceanographic Centre in Southampton in 2003, and today there are more than 50 instruments delivered to leading universities and research institutes world wide. The number of scientific articles containing Itrax Core Scanner data grows for every year and is over 180 for 2019, indicating the significance of this instrument in the different research communities where the applications are found.
To the left a photo of Itrax XRF Core Scanner.
Useful combination of techniques
Itrax Core Scanner combines XRF, x-ray radiographic imaging, optical imaging and magnetic susceptibility measurement, to provide detailed geochemical information where all chemical elements are determined simultaneously. Having these different measurements in one instrument means reliable matching of the positioning of the different measurements. The amount of reliable information that can be retrieved from a sample in a few minutes or hours has made this instrument a central resource in many laboratories.
It is well suited for scanning of wet sediment samples resting in liners, as well as drill cores with circular cross section or split, since measurements are done without touching the sample surface. The high speed available at any scanning resolution makes it possible to scan wet sediments without having to apply a foil on the sample surface, thereby avoiding a possible formation of a water film under the foil, which may affect the data. It is even possible to analyze the rounded surface of drill cores with good results, since there is no need for a good contact with the sample surface in order to get reliable data.
Picture: Langhammars, Fårö, Sweden
Power to determine
You can expect very good detection limits for all detected elements. Determination of PPM level concentrations of elements is a matter of one or a few seconds per scan point for almost all chemical elements. Each measurement is performed close to the sample surface, without touching it. Itrax keeps track of this distance at every point along the sample, and placed the measuring equipment in the right position, also when the surface is somewhat uneven. This feature saves a lot of time compared to solutions that need to move the measuring device up and down between each point.
From overview to detail at highest speed
The scanning increment size, or step size, is variable, allowing for quick overview scans as well as detailed high resolution scans. Itrax does not lose speed as the step size is decreased, unlike most XRF scanners. This is a really time saving feature for high resolution scanning. The smaller the steps, the more time saved, making a big difference at steps of one millimeter or less per point. This difference grows with smaller steps because Itrax has no slit system to decrease the beam size. Slits decrease the x-ray intensity at the same time as they decrease the beam size, while instead Itrax is equipped with a unique scanning x-ray beam construction where the x-ray intensity is not lost.
Picture: ALS lab, Malå, Sweden. Drill core samples.
Itrax Core Scanner is non destructive and does not touch the sample surface during analysis. This saves a lot of scan overhead time, makes this instrument good at handling sample cracks, and allows for good analyses also of the rounded surface of drill cores.
The software has a graphical user interface which is easy to handle and puts the user in control of the scan parameters. One of many unique software features is the analytical quality feedback from the software, giving the user an indication of the data quality, point by point. Our in-house software for element quantification delivers robust quantitative data for all elements in good accordance with other techniques, based on calibration with certified reference standards. Our staff stays in contact with the users to give support. We know this instrument, and we know x-ray physics, so we can answer your questions when it comes to x-rays.
Picture: Kochi Core Center, Japan. Storage of sediment samples.
Reproducibility is unfortunately not something that you can always expect in XRF scanning, but with Itrax, already when applying short time for analysis at each point, you get high quality data, as shown by repeating the scan with very similar results. One example of this is shown to the left.
This diagram shows in the red and black graphs two element profiles, each displaying the same distribution of Manganese in a sediment core, as recorded with Itrax Core Scanner in two consecutive, continuous scans. Each profile contains 1,000 measurements with a spot size and step of 0.2 millimeter. Each step was measured during one second only. The concentration of Manganese is in the range of ~0.02-0.2%.