• The Smart Way to Determine the Refractive Index of Glass Trace Evidence

Laboratory products

The Smart Way to Determine the Refractive Index of Glass Trace Evidence

Craic Technologies, Inc joins with Laboratory Imaging, sro to introduce rIQ™: the intelligent solution for the analysis of glass trace evidence. rIQ™, which stands for Refractive Index Quantification, is the result of a collaboration between Craic Technologies and Laboratory Imaging. rIQ™ combines sophisticated image analysis software, advanced optical design and electronics to enable criminalists in modern forensic laboratories to measure the refractive index of  multiple glass fragments simultaneously, quickly and with the highest accuracy. “The partnership between Craic Technologies and Laboratory Imaging is yielding great success. Craic Technologies expertise in optics combined with Laboratory Imaging’s decades of experience with microscope imaging software is advancing the state-of-the-art in several fields. rIQ™ is the first result of this partnership and it promises to take the technique of forensic refractive  index determination to the next level," stated Dr Paul Martin, President of Craic Technologies. “Glass fragments are  common at crimes scenes.

rIQ™ enables the forensic scientist to measure and compare the refractive index of the
smallest fragments of glass with an incredibly high degree of accuracy. And when combined with Craic Technologies microscope spectrophotometers and microcolorimeters, the transmission and fluorescence spectral characteristics of glass evidence can also be determined quickly, accurately and all with the same instrument." rIQ™ is an automated system that uses the thermal immersion method, as defined by the standard ASTM E1967-98, to measure the
refractive index of microscopic glass fragments. The system, which incorporates many years of experience with the analysis of glass, allows the user to analyse the refractive index of multiple glass fragments simultaneously and with sophisticated analytical techniques. Statistical analysis methods can also be applied but the instrument is also  designed to be user friendly with a short learning curve.

rIQ™ is offered as a standalone package, as an add-on package to Craic Technologies microspectrophotometers and as an upgrade package for older units already in the field. A standalone package consists of a phase contrast microscope, a high resolution digital camera, the optical  interface, a thermal stage, the controlling electronics and the rIQ™ software. The add-on package can be integrated with many Craic Technologies microspectrophotometers models, both past and present, to allow them to measure the colour, absorbance microspectra™, fluorescence microspectra™ and the refractive index of the smallest of glass  fragments.


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Lab Asia 31.6 Dec 2024

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