A comparison of the performance and energy resolution of CdTe and Si detectors in the X-ray Fluorescence studies of metal samples and Alloys

Authors

  • Iniobong P. Etim
    Department of Physics, University of Calabar, P.M.B 1115 Calabar, Cross River State, Nigeria
  • Rebecca Emmanuel Mfon
    Department of Physics Federal University of Lafia, P.M.B 146 Lafia, Nasarawa State, Nigeria

Keywords:

X-ray fluorescence, Cadmium Telluride detector, Silicon detector, Energy resolution, energy efficiency

Abstract

X-ray fluorescence provides a powerful means of non-destructively determining the elemental composition of a sample. X-rays from a Molybdenum (Mo) source was fired on copper, molybdenum, lead, steel and brass samples to determine their composition and relative abundance of their constituent elements. Two different detectors:  the Cadmium Telluride (CdTe) and Silicon(Si) detectors were used to pick up the signals from the scattering of the X-rays at the sample surfaces and their energy resolutions as well as efficiencies were compared. With a non-noisy amplifier, the Si detector had a higher resolution (0.27 % ) when compared to the 0.38 % for the CdTe detector but it had a lower efficiency when compared to that of the CdTe detector. It was also discovered that higher energies produced lower detector efficiencies.

Dimensions

H. Ait Bouh, “X-ray fluorescence analysis techniques: Principles and instrumentations”, LAP Lambert Academic Publishing (2020) ISBN 978-620-2-78771-0.

P. Mudgal, D.J. Bell, “X-ray production/Radiology Reference article/”, Radiopaedia.org, https://doi.org/10.53347/rlD-25428.

G. Lloyd-Jones, “Basics of X-ray Physics-X-ray production”, https://www.radiologymasterclass.co.uk/tutorials/physics.

G. F. Knoll, “Radiation Detection and Measurement”, Wiley Publishers, 4th Edition, (2010) ISBN 978-0-470-13148-0.

M. Alghamdi , M A-E. Abdallah, S. Harrad, “The utility of X-Ray fluorescence spectrometry as a tool for monitoring compliance with limits on concentrations of halogenated flame retardants in waste polymers: A critical review”, Emerging contaminants 8 (2022) 9, https://doi.org/10.1016/j.emcon.2021.12.002.

D. J. Kalnicky, R. Singhvi, “Field portable XRF analysis of environmental samples”, Journal of hazardous materials 83 (2001) 93, https://doi.org/10.1016/s0304-3894(00)00330-7.PMID:11267748.

F. L. Melquiades, C. Appoloni, “Application of XRF and field portable XRF for environmental analysis”, Journal of Radioanalytical and Nuclear Chemistry 262 (2004) 533, https://doi.org/10.1023/B:JRNC.0000046792.52385.b2.

H. K. Herglotz & L. S. Birks, “X-ray Spectrometry”, ISBN 0-8247-6625-3, New York.

J. E. Fernandez, “Monte Carlo computer simulation of the XRF intensity dependence on the propagation plane inclination”, Computer Physics Communications (1989): 54211, https://doi.org/10.1016/0010-4655(89)90083-0.

Laboratory Script: RDI23-Si and CdTe X-ray Spectroscopy, Professor Paul Sellin (2009).

Published

2022-11-27

How to Cite

A comparison of the performance and energy resolution of CdTe and Si detectors in the X-ray Fluorescence studies of metal samples and Alloys. (2022). Journal of the Nigerian Society of Physical Sciences, 4(4). https://doi.org/10.46481/jnsps.2022.926

Issue

Volume 4, Issue 4, November 2022

Section

Original Research
Copyright & Licensing

Copyright (c) 2022 Iniobong P. Etim, Rebecca Emmanuel Mfon

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

A comparison of the performance and energy resolution of CdTe and Si detectors in the X-ray Fluorescence studies of metal samples and Alloys. (2022). Journal of the Nigerian Society of Physical Sciences, 4(4). https://doi.org/10.46481/jnsps.2022.926

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