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

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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