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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Kirkby, Karen Reeson
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2013Chemical changes exhibited by latent fingerprints after exposure to vacuum conditions.citations
- 2013Integrated Ion Beam Analysis (IBA) in Gunshot Residue (GSR) characterisationcitations
- 2012Determination of the deposition order of overlapping latent fingerprints and inks using secondary ion mass spectrometry.citations
- 2010Deactivation of submelt laser annealed arsenic ultrashallow junctions in silicon during subsequent thermal treatmentcitations
- 2009Heavy ion implantation combined with grazing incidence X-ray absorption spectroscopy (GIXAS)
- 2009Trace element profiling of gunshot residues by PIXE and SEM-EDScitations
- 2009Characterization of junction activation and deactivation using non-equilibrium annealing
- 2008RBS/EBS/PIXE measurement of single-walled carbon nanotube modification by nitric acid purification treatmentcitations
- 2006Deactivation of B and BF2 profiles after non-melt laser annealing
- 2006Effect of buried Si SiO2 interface on dopant and defect evolution in preamorphizing implant ultrashallow junctioncitations
- 2006Deactivation of low energy boron implants into pre-amorphised Si after non-melt laser annealing with multiple scans
- 2006Deactivation of ultrashallow boron implants in preamorphized silicon after nonmelt laser annealing with multiple scanscitations
- 2005Evaluation of BBr2 + and B+ + Br + implants in silicon
- 2005Understanding the role of buried Si/SiO2 interface on dopant and defect evolution in PAI USJcitations
- 2005A potential integrated low temperature approach for superconducting MgB2 thin film growth and electronics device fabrication by ion implantationcitations
- 2005Comparison of elemental boron and boron halide implants into siliconcitations
- 2002Effect of implant conditions on the optical and structural properties of β-FeSi2
- 2001Microstructure of (100) silicon wafer implanted by 1 MeV Ru+ ionscitations
- 2001Electroluminescence of β-FeSi2 light emitting devices
- 2000Light-emitting diodes fabricated in silicon/iron disilicide
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article
Integrated Ion Beam Analysis (IBA) in Gunshot Residue (GSR) characterisation
Abstract
<p>Gunshot Residue (GSR) is residual material from the discharge of a firearm, which frequently provides crucial information in criminal investigations. Changes in ammunition manufacturing are gradually phasing out the heavy metals on which current forensic GSR analysis is based, and the latest Heavy Metal Free (HMF) primers urgently demand new forensic solutions. Proton scanning microbeam Ion Beam Analysis (IBA), in conjunction with the Scanning Electron Microscope equipped with an Energy Dispersive X-ray Spectrometer (SEM-EDS), can be introduced into forensic analysis to solve both new and old problems, with a procedure entirely commensurate with current forensic practice. Six cartridges producing GSR particles known to be interesting in casework by both experience and the literature were selected for this study. A standard procedure to relocate the same particles previously analysed by SEM-EDS, based on both secondary electron (SE) and X-ray imaging was developed and tested. Elemental Particle Induced X-ray Emission (PIXE) mapping of the emitted X-rays allowed relocation in a scan of 10μm×10μm of even a 1μm GSR particle. The comparison between spectra from the same particle obtained by SEM-EDS and IBA-PIXE showed that the latter is much more sensitive at mid-high energies. Results that are very interesting in a forensic context were obtained with particles from a cartridge containing mercury fulminate in the primer. Particle-induced gamma-ray emission (PIGE) maps of a particles from HMF cartridges allowed identification of Boron and Sodium in particles from hands using the <sup>10</sup>B(p,α<sub>1</sub>γ)<sup>7</sup>Be, <sup>11</sup>B(p,p<sub>1</sub>γ)<sup>11</sup>B and <sup>23</sup>Na(p,p<sub>1</sub>γ)<sup>23</sup>Na reactions, which is extraordinary in a forensic context. The capability for quantitative analysis of elements within individual particles by IBA was also demonstrated, giving the opportunity to begin a new chapter in the research on GSR particles. The integrated procedure that was developed, which makes use of all the IBA signals, has unprecedented characterisation and discrimination power for GSR samples.</p>