Abstract
3D quantitative elemental maps of a section of a strand of hair were produced using a combination of PIXE-Tomography and simultaneous On/Off Axis STIM-Tomography at the University of Surrey Ion Beam Centre. The distributions of S, K, Cl, Ca, Fe and Zn were determined using the PIXE-T reconstruction package DISRA. The results were compared with conventional bulk PIXE analysis of tomographic data as determined using Dan32. The overall concentrations determined by PIXE were compared with elemental concentrations held in the University of Surrey Hair Database. All the entries currently in the database were produced using INAA. The merits and possible contributions of tomographic PIXE analysis to analysis of hair are discussed. The conclusions drawn from the PIXE-Tomography analysis can be used to argue for more stringent procedures for hair analysis at the University of Surrey.
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Beasley, D., Gomez-Morilla, I. & Spyrou, N. Elemental analysis of hair using PIXE-tomography and INAA. J Radioanal Nucl Chem 276, 101–105 (2008). https://doi.org/10.1007/s10967-007-0416-6
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DOI: https://doi.org/10.1007/s10967-007-0416-6