SEM + EDX + Software
 
TESCAN TRACE GSR is an automatic all-in-one GunShot Residue analysis package, combining a TESCAN SEM, an EDX analyzer and excellent classification software.
The high level of integration between the SEM and the EDX analyzer allows the EDX system to be used just to acquire a spectrum of the particles and consequently speed up the whole process of GSR analysis.
 

VEGA or MIRA SEM + EDX
The family of high-quality TESCAN SEMs with either a VEGA tungsten or MIRA field emission column complies with the current ASTM E1588 standard guide for GSR and has already proven its capabilities in forensic labs worldwide.
 
Unique Wide Field Optics™ offers a variety of working and display modes. It allows imaging at the highest possible resolution, great depth of focus and an extra-large field of view. The comprehensive software interface offers effortless image acquisition of a superior quality. Prior to GSR analysis, the investigated area of the sample is divided into several fields. The SEM then scans the sample field by field, looking for GSR particles.
 

Particles are imaged by the latest generation of TESCAN YAG scintillation backscattered electron (BSE) detector at a fast imaging rate (100 ns/pxl) and without any compromises in image quality.
 
After one field has been scanned, the electron beam returns to each particle found, and precise EDX elemental analysis is performed. TESCAN TRACE GSR supports the use of either a single high-quality LN2-free EDX detector or dual detectors for higher count rates and reduction of spectrum acquisition time. The detector can be 10 mm² or 30 mm² in area. The TESCAN scan generator is used for specimen analysis. The process is fast and reliable, with very high repeatability and level of confidence.
 
TESCAN TRACE GSR Software
The intuitive four-step wizard allows the operator to run single samples or batches of up to twenty samples automatically. Each sample can be searched under individual conditions.
An advanced automatic calibration procedure uses the TESCAN integrated beam-current meter and X-ray excitation counts for realtime readjustment of the electron column, BSE detector, and X-ray analysis system.
 

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EDX spectra and BSE image of each detected particle are stored, classified and assigned to classes according to the chemical elements identified.
The built-in review mode allows simple and quick revisiting of particles, validation and manual or automatic reclassification of single runs or batches. TESCAN TRACE GSR software also offers extensive reporting capabilities. All acquired data are stored in a complete result file.
 
The TESCAN TRACE GSR package is also available with VELA or LYRRA FIB-SEM.