The application of particle-induced prompt photon emission spectrometry for chemical analysis - the determination of minor and trace components in steels

Name: Dherendra Gihwala

Organization : Cape Peninsula University of Technology. Faculty of Health and Wellness Sciences

Email : gihwalad@cput.ac.za

Name: Johan Andre Mars

Organization : Cape Peninsula University of Technology. Faculty of Health and Wellness Sciences

LCSH: Spectrometer

LCSH: Photon emission

LCSH: Steel -- Analysis

Abstract: The intentional inclusion of minor and trace components as alloying components in the production of steel changes the characteristics of the metal. In this study, alpha and proton particles of up to 5 MeV, generated by a Van Der Graaff accelerator, excite the elements in a steel matrix in order to determine trace, minor and major components of the samples. The main advantage of the method is that it is rapid and does not destroy the sample. The techniques have the added benefit of measuring the concentration of a range of elements simultaneously. A description is given of the spectrometry of X-rays from steels under bombardment with protons and measured with a Si(Li) detector. This was compared with gamma-ray spectrometry of the steels excited by protons and alpha particles and measured by a Ge(Li) detector. The determinations of N, Si, V, Cr, Mn, Mo and W in Standard Reference steels were measured with respect to precision for both the X-ray and gamma-ray techniques. The concentration of elements in most steel samples ranged from 0.01–20%. For these, the precision of analysis ranged from 8% to less that 1% respectively.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2016

Modified: 2562-10-04

Issued: 2019-10-04

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BibliograpyCitation : In Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn and Chulalongkorn University Faculty of science. Pure and Applied Chemistry International Conference (PACCON 2016) (pp.1-6). Bangkok : Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn

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