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Unlocking Evidence

Unlocking Evidence. Energy Dispersive X-ray Fluorescence The Smart Detective for Forensic Applications. Challenges Facing the Forensic Scientist. Maintaining the integrity of Evidence Obtaining matching evidence with a high degree of certainty

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Unlocking Evidence

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  1. Unlocking Evidence Energy Dispersive X-ray Fluorescence The Smart Detective for Forensic Applications

  2. Challenges Facing the Forensic Scientist • Maintaining the integrity of Evidence • Obtaining matching evidence with a high degree of certainty • Using techniques and applications which achieve the above objectives on a variety of sample sizes

  3. Maintaining the integrity of Evidence Obtaining matching evidence with a high degree of certainty Using techniques and applications which achieve the above objectives on a variety of sample sizes Non-destructive, non-contacting geometry Using sort and best match criteria for fingerprint elements Using flexible sample presentation systems How EDXRF meets these challenges

  4. The ability to identify elements clearly Good sort program for a certain amount of program automation An indication of the confidence in the Match produced Energy resolution is important Must be able to build a library of reference spectra Sort-Best Match routine should produce a confidence figure Important selection criteria for forensic applications

  5. Features Analyzes for elements F-U 140±10 eV detector resolution @ 5.9 kV and 3000cps Auto sampler – 10 position, optional 18 position and remove tray for large samples Eight selectable primary beam filters and a collimator Powerful ExWin Software Benefits High Versatility Greater selectivity and superior element identification Handles variable sample sizes with ease Optimize excitation conditions for maximum sensitivity. Small samples can be analyzed using the collimator option. Provides excellent tool for spectral manipulation, sort and best match routines, spectral libraries and other data routines The Jordan Valley EX-3600

  6. Superior Selectivity – 140eV resolution Resolution @ Mn Kα 5.9keV on real life sample – 140eV ± 10eV

  7. Superior Excitation Flexibility The EX-3600 can be modified in the field to accept targets for very exacting analysis In the above slide we are comparing Glass samples with varying Sodium Concentrations Using an Aluminum Target. The EX-3600 can be modified to accommodate secondary targets.

  8. Versatile Sample Presentation Sample holders hold different size samples from 24mm – 40mm diameter Sample Changer can be removed for larger samples Filter Wheelincludes a beam collimator that reduces the spot size to 1mm for small fragments

  9. Create a reference library of known materials Create a Sort/ Best Match Routine Run unknowns against Reference Library for Best Match Identifying Unknown Samples

  10. To summarize…The Jordan Valley EX-3600 provides Selectivity – best resolution available in its price range Flexibility – scalable to a very powerful secondary target instrument Versatility – Can handle a variety of sample sizes Productivity – Sort and Best Match routines provide fast and reliable identification routines.

  11. Choose The Winning Strategy For Forensic Applications

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