Table 1. Elements of interest and their electron configuration.

Element	Symbol	Electron configuration
Titanium	Ti	Kα =4.508 keV; Kβ =4.931 keV
Bromine	Br	Kα =11.992 keV, Kβ =13.289 keV
Chromium	Cr	Kα =5.411 keV, Kβ1 =5.946 keV
Iron	Fe	Kα =6.399 keV; Kβ =7.057 keV
Copper	Cu	Kα =8.046 keV; Kβ =8.904 keV
Zinc	Zn	Kα =8.637 keV; Kβ =9.570 keV
Arsenic	As	Ka =10.542 keV; Kβ =11.724 keV
Lead	Pb	Lα =10.550 keV; Lβ =12.612 keV; Lγ =14.762 keV
Selenium	Se	Kα =11.220 keV; Kβ =12.494 keV
Strontium	Sr	Kα =14.163 keV; Kβ =15.833 keV

Kα and Kβ = electron shell K = subcell α or β; keV = kilo electron volts; Lα = Lβ and Lγ, L subpeaks.