INCAGSR
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INCAGSR A dedicated solution for automated detection and analysis of Gun Shot Residue using the scanning electron microscope This product has been designed in conjunction with leading forensic scientists to meet the requirements of GSR particle detection and characterisation. The software is based around the unique INCAEnergy platform and the new INCAFeature particle analysis system. INCAGSR now offers all the important answers for accurate, fast and reliable analysis. Logical Analysis Set-Up INCAGSR creates an analysis recipe through a series of logical steps using the INCAGSR Navigator....

GSR Particle Review for Correct Particle Confirmation At the press of a button, particles of interest are automatically relocated under the microscope beam. A dedicated reacquire step is used to confirm the nature of the particle ensuring correct identification of characteristic particles. Data reacquired for manual confirmation is saved in the database and included in the statistical analysis. Comprehensive Data Analysis The tools available for data analysis provide a fast overview of any data set, giving you confidence in the validity of your analysis. • Data can be plotted on the basis...

Figure 1 Stage mimic, with three areas defined for analysis Application information GSR Analysis INCAGSR offers straightforward set up and high flexibility for analysis. The set-up involves: The powerful tools available in the INCAGSR package are described in the following section: A real GSR sample* prepared in a clean environment is used to illustrate these features. INCAGSR performs an automated search, detects particles of interest and measures the morphology and chemistry of these particles. Particle detection relies on the backscatter contrast between the sampling substrate and the...

SnSbBaPb SbBaPb SbSnPb SbSnBa TiZnCu SnBaPb TiZnSn SbBa SbPb BaPb SbSn Sr TiZn Sb CuZn Ni Pb Sn Au Lighter flint Fe Cu Features % total Feature features area (sq.pm) % total area Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Characteristic Consistent Consistent Consistent Consistent Consistent Consistent Environmental Environmental Environmental Environmental Environmental Environmental Environmental Environmental Environmental each spectrum. This ensures that all the elements present in a particle are identified and quantified. It is possible...

Detailed Data Analysis The tools available in INCAGSR are designed for detailed data analysis and for checking the validity of classification schemes. Examples include ternary diagrams and histograms. In Figure Figure 9 Element mapping of a GSR particle 7 a ternary diagram has been used to study the relationship Further Analysis of GSR particles between chemistry and particle size. In Figure 8 a histogram is used to illustrate the shape of the TiZnCu particles. Figure 7 Ternary plot of Ba, Sb and Pb Using the integrated tools available within INCAEnergy a more detailed examination of the...

The speed of GSR systems is normally defined using a blank The reliability of an automated particle detection system should field test. This tests the time required to analyze an area with be checked periodically using a certified standard to show the no particles, using a defined minimum particle size. A typical system is detecting particles reliably. This check ensures that the stage and beam are properly calibrated, so that particles are not Surface Area Minimum particle size Time (minutes) The time to analyze 1000 particles over a similar area was measured at 65 minutes. lost in gaps...

INCAGSR Package Specification 1. Dedicated Software for GSR Complies to ASTM standard 1588-10e1, with report of full quantitative analysis GSR Classification Scheme • Includes classes for the main characteristic and consistent GSR types for Pb and Pb free ammunitions • Class scheme may be used as supplied or modified • Match index option to ensure single classification of particles Dedicated software for re-acquiring data from any selected particle • Automatic relocation of particle • User selectable acquisition conditions • Option to collect SE and/or BSE image • Reacquire spectrum and...