Advances in X-Ray Analysis: Volume 36 by Anthony J. Klimasara (auth.), John V. Gilfrich, Camden R.

By Anthony J. Klimasara (auth.), John V. Gilfrich, Camden R. Hubbard, Ron Jenkins, Deane K. Smith, Ting C. Huang, Michael R. James, Gerald R. Lachance, Paul K. Predecki (eds.)

Mathematical thoughts in XRay Spectrometry: examine within the Quantitative research of person debris by way of XRay Fluorescence Spectrometry (M. Lankosz et al.). Analysis of sunshine parts through XRay Spectrometry: XRFA of Carbon in Steels (F. Weber et al.). XRS concepts and Instrumentation: Diffraction Peaks in XRay Spectroscopy (R.G.Tissot, R.P. Goehner). OnLine, business, and different purposes of XRS: software of XRF within the Aluminum (F.R. Feret). XRay Characterization of skinny Films: Grazing prevalence XRay Characterization of fabrics (D.K. Bowen, M. Wormington). WholePattern becoming, part research via Diffraction Methods: section identity utilizing WholePattern Matching (D.K. Smith et al.). Polymer purposes of XRD. HighTemperature and NonAmbient functions of XRD. rigidity and pressure selection by means of Diffraction equipment, height Broadening research. XRD concepts and Instrumentation. seventy one extra articles. Index.

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Phys. 38(3), 513 (1966) 10. Fujino: Jpn. 1. Appl. Phys. 5, 886 (1966) 11. Phys. 25,131 (1992) 12. Hubbel: UCRL-50174 (1969) 13. Hubbell: NBSIR 86-3431, US-Dpt. of Commerce, Gaithersburg, MD 14. Wariwoda: submitted to Advances in X-Ray Analysis 36 15. Weber: submitted to Advances in X-Ray Analysis 36 33 ANALYSIS OF GRAPHITE IN CASTSTEELS USING XRFA L Wanwoda, M Mander, F Weher instItute of Apphed and Techmcal PhysIcs Techmcal Umverslty VIenna, Austna SUMMARY For carbon anal" SIS m an Iron-matnx the C-Ka mtenslty IS not onl) a function of the amount of graphite, but also of the dIameter of the spherolttes and, for agnen total carbon content, of the graphIte/cementite ratio In order to" enfy thiS, steel and caststeel sam pie surfaces ",ere photographed before and after etchmg and thc Images dIgitized The areal fractIons co,ered by graphIte, cementite, and Iron "ere used to compute the correspondmg mdn Idual "eight fractIons and total carbon contents Count rates", ere dra" n to the scale of these as ",ell as of the nommal carbon concentratIons INTRODUCTION From the" Ie", pomt of carbon-analvsls b" XRF A, steels and caststeels are high" mhomogenous s~ stems Baslcalh, carbon can be (to a 10'" degree) dlssohed m lfon, fonn a stOlchlOmetnc compound, Fe,(' (cementite), or segregate at gram boundaries or as larger parttcles of" arlous pOSSIble shapes TheoretIcal calculatIOns sho", that the count rates for a gl\ en total content of carbon IS almost the same for randomh dlstnbuted carbon m an Iron matn ....

Dilmore, The Production and Characterization of Glass Fibers and Spheres for Microanalysis, Scanning Elec. Micros. 1:445 (1978). 3. A. Pella and L. Feng, Fabrication and Selected Applications of a NIST X-ray Microfluorescence Spectrometer, Advances in X-ray Analysis 35B:1063 (1992). 4. A. Pella, L. Feng, and J. A. Small, An Analytical Algorithm for Calculation of Spectral Distributions of X-Ray Tubes for Quantitative X-Ray Fluorescence Analysis, X-Ray Spectrometry 14:125 (1985). B. E. S. O. Box 25046, Denver Federal Center Denver, Colorado 80225 ABSTRACT SUPERXAP (Super X-ray Analysis Program) enables IBM-compatible personal computers to analyze energy-dispersive spectra using least-squares spectral deconvolution.

Solid line is a Monte Carlo simulation. 16 I. MATHEMATICAL TECHNIQUES IN X-RAY SPECTROMETRY To m1n1m1ze particle size effects in x-ray microfluorescence of individual particles, mathematical correction methods need to be developed. Preliminary work also suggests that Compton-scattered radiation from particles may be used to correct the effects due to both size and shape. In Figure 4, measured Compton-scattered Mo Ka intensity (relative to a flat sample) is presented a function of particle diameter for spherical shaped K-4ll glass particles.

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