Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume 477, Issue -, Pages 73-76Publisher
ELSEVIER
DOI: 10.1016/j.nimb.2019.09.045
Keywords
HiRED-PIXE; XMS; Speciation; Copper; Cultural Heritage
Categories
Funding
- IAEA [18357, F11019]
- Portuguese Foundation for Science and Technology, FCT [SFRH/BPD/76733/2011, UID/Multi/04349/2013]
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The (CTN)-T-2 XMS-PIXE system based on a first generation X-ray Microcalorimeter Spectrometer (XMS) having 1.5% relative energy resolution at Si K alpha 1.739 keV and 0.5% relative energy resolution at Fe K alpha 6.403 keV, became operational in 2008, presaging various developments to emerge from its use and from connected or related but independent advancements by other laboratories. More than ten years having passed since the (CTN)-T-2 XMS-PIXE system first results, knowledge about XMSs use for PIXE has grown meaningfully and new applications are now envisaged and in progress. In the present work, results on the analysis of different copper compounds are presented, and used as an assessment of the capacity of High Resolution Energy Dispersive PIXE (HiRED-PIXE) to provide answers to the problem of copper pigments speciation in Cultural Heritage studies. Related issues of XMS spectra generation and calibration are discussed, as well as first generation systems limitations and its overcome by the use of second and third generation systems.
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