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Titolo:
Elemental mapping using proton-induced x-rays
Autore:
Przybylowicz, WJ; Mesjasz-Przybylowicz, J; Pineda, CA; Churms, CL; Ryan, CG; Prozesky, VM; Frei, R; Slabbert, JP; Padayachee, J; Reimold, WU;
Indirizzi:
Natl Accelerator Ctr, Mat Res Grp, ZA-7131 Faure, South Africa Natl Accelerator Ctr Faure South Africa ZA-7131 7131 Faure, South Africa Groote Schuur Hosp, Dept Med, ZA-7925 Cape Town, South Africa Groote Schuur Hosp Cape Town South Africa ZA-7925 ape Town, South Africa CSIRO Explorat & Min, N Ryde, NSW 2113, Australia CSIRO Explorat & Min N Ryde NSW Australia 2113 Ryde, NSW 2113, Australia Kobenhavns Univ, Inst Geol, DK-1350 Copenhagen, Denmark Kobenhavns Univ Copenhagen Denmark DK-1350 , DK-1350 Copenhagen, Denmark Natl Accelerator Ctr, Radiat Biophys Div, ZA-7131 Faure, South Africa NatlAccelerator Ctr Faure South Africa ZA-7131 7131 Faure, South Africa Univ Witwatersrand, Dept Geol, ZA-2050 Johannesburg, South Africa Univ Witwatersrand Johannesburg South Africa ZA-2050 sburg, South Africa
Titolo Testata:
X-RAY SPECTROMETRY
fascicolo: 3, volume: 30, anno: 2001,
pagine: 156 - 163
SICI:
0049-8246(200105/06)30:3<156:EMUPX>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
QUANTITATIVE PIXE MICROANALYSIS; NUCLEAR MICROPROBE; SOUTH-AFRICA; WITWATERSRAND BASIN; DISTRIBUTIONS; SAMPLES; PYRITES; REEFS; SEEDS; MAPS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Przybylowicz, WJ Natl Accelerator Ctr, Mat Res Grp, POB 72, ZA-7131 Faure,South Africa Natl Accelerator Ctr POB 72 Faure South Africa ZA-7131 a
Citazione:
W.J. Przybylowicz et al., "Elemental mapping using proton-induced x-rays", X-RAY SPECT, 30(3), 2001, pp. 156-163

Abstract

The use of particle-induced x-ray emission (PIXE) in conjunction with a scanning nuclear microprobe (SNM) offers one of the few microanalytical techniques capable of studies of elemental concentrations at the ppm level, witha spatial resolution of the order of 1 mum. Beam scanning capabilities andadvanced data treatment make it a technique of choice for quantitative two-dimensional studies of elemental distribution. Although the ultimate aim is to obtain true quantitative elemental maps, free of concentration or thickness artifacts, some compromises are necessary owing to experimental and computational restrictions. Some approaches currently used are discussed with emphasis on true elemental imaging using the dynamic analysis method. Examples of applications in geology and biology are shown to illustrate its benefits and limitations. Copyright (C) 2001 John Wiley & Sons, Ltd.

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Documento generato il 05/07/20 alle ore 10:25:16