![]() X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number"
written by
Asma Khalid, Aleena Tasneem Khan, and Muhammad Sabieh Anwar
published by the LUMS School of Science and Engineering
In this experiment students use XRF spectroscopy to analyze a sample's elemental composition. From the characteristic X-ray energies, Moseley's Law, a proof of the existence of the atomic number, is verified. The atomic number increases in regular steps with an increase in the characteristic X-ray energy. We will use this relationship to find the Rydberg's energy constant and screening coefficient for K X-rays.
This lab is designed for the student to learn to: 1. differentiate between characteristic X-rays and Bremsstrahlung radiations, 2. use characteristic X-rays to identify elements, 3. acquire a spectrum, calibrate it and use it for qualitative (element identification) as well as quantitative (elemental concentration) analysis, and finally, 4. verify Moseley's law and the validity of an atomic number.
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![]() <a href="https://www.compadre.org/portal/items/detail.cfm?ID=11727">Khalid, A, A. Khan, and M. Anwar. X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number". Lahore Cantt: LUMS School of Science and Engineering, Pakistan, July 23, 2011.</a>
![]() A. Khalid, A. Khan, and M. Anwar, (LUMS School of Science and Engineering, Pakistan, Lahore Cantt, 2011), WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608).
![]() A. Khalid, A. Khan, and M. Anwar, X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number" (LUMS School of Science and Engineering, Pakistan, Lahore Cantt, 2011), <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608>.
![]() Khalid, A., Khan, A., & Anwar, M. (2011, July 23). X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number". Retrieved May 1, 2025, from LUMS School of Science and Engineering, Pakistan: https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608
![]() Khalid, A, A. Khan, and M. Anwar. X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number". Lahore Cantt: LUMS School of Science and Engineering, Pakistan, July 23, 2011. https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608 (accessed 1 May 2025).
![]() Khalid, Asma, Aleena Tasneem Khan, and Muhammad Sabieh Anwar. X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number". Lahore Cantt: LUMS School of Science and Engineering, Pakistan, 2011. 23 July 2011. 1 May 2025 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608>.
![]() @misc{
Author = "Asma Khalid and Aleena Tasneem Khan and Muhammad Sabieh Anwar",
Title = {X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number"},
Publisher = {LUMS School of Science and Engineering, Pakistan},
Volume = {2025},
Number = {1 May 2025},
Month = {July 23, 2011},
Year = {2011}
}
![]() %A Asma Khalid %A Aleena Tasneem Khan %A Muhammad Sabieh Anwar %T X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number" %D July 23, 2011 %I LUMS School of Science and Engineering, Pakistan %C Lahore Cantt %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608 %O application/pdf ![]() %0 Electronic Source %A Khalid, Asma %A Khan, Aleena Tasneem %A Anwar, Muhammad Sabieh %D July 23, 2011 %T X-Ray Fluorescence (XRF) spectrometry for materials analysis and discovering "the atomic number" %I LUMS School of Science and Engineering, Pakistan %V 2025 %N 1 May 2025 %8 July 23, 2011 %9 application/pdf %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11727&DocID=2608 Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.
Citation Source Information
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