![\"sugar](\"http:\/\/blogs.sun.ac.za\/ctscanner\/files\/2014\/10\/sugar-slice.jpg\")
<\/a><\/p>\nThe concrete powder shows very irregular shapes with pores inside some particles. A particle size distribution analysis is performed, and the histogram shown below. In addition to particle volume or diameter, every particle has its 3D surface area, X,Y,Z projection area, longest axis length, sphericity factor, etc. calculated. All this additional information can be very useful and is not possible with any other technique such as surface analysis \u201ctopography\u201d SEM or laser methods, all of these have some limitations in providing real shape information in true 3D. The only limitation to X-ray CT is the field of view and resolution. Best resolution is 500-1000 nm which is possible using a 1 mm sample size, and makes possible quantitative size distribution analysis of 10 \u2013 1000 micron particle diameters.<\/p>\n High quality nanoCT scans produce the best results, these take between 2-4 hrs per sample without any post processing. We can provide standard analysis such as particle size distribution analysis, within 1 hr after the scan. Analysis results (size distribution) can be e-mailed (CSV file) while volume data (10 Gb) is sent on hard drive with a free 3D viewer program. Academic rates are R550 per hour, excl 7% admin fee and VAT, commercial R1250 ph.<\/p>\n Samples can be physically delivered to our labs (via courier) \u2013 for powders we need approx 2 x 2 x 2 mm for quantitative particle size distribution from 10-1000 micron<\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n<\/a><\/p>\n