The monetary value of gemstones is based on five variables: rarity, cut, weight, color and clarity. latter refers to internal impurities defects. Fashion may also dictate demand price. To enhance some these features value, are treated. Disclosure or nondisclosure thereof has been controversial affected consumer confidence. Most treatments difficult detect with the naked eye accurately quantify ...

This study investigates the potential of a new high-resolution, non-destructive, X-ray imaging technique for Quaternary Sciences – computed laminography (CL). Greyscale properties are systematically extracted from digital X-radiographic CL images cored glaciomarine sediments to analyse and characterise at pixel-scale resolution (<0.1 mm). We show how this can be achieved manually, also with an ...

A recent example of successful technology transition from high energy physics to practical engineering applications is cosmic ray muon tomography. Cosmic tomography, a promising non-destructive technique that has been recently utilized monitor or image the contents dense well shielded objects, typically not feasible with conventional radiography techniques, e.g., x-ray neutron. tomography used ...