Determining which energy level transfers cause peaks in x-ray spectra

[lrcarr]

Hi all,

I'm wondering how, for each peak in an x-ray spectra from a material (and using a crystal analyser), it is determined which energy level jump the peak corresponds to?

How would you figure out the correct value of n to substitute into Bragg's Law to find the energy of the beam?

Thank you!

 

[ZapperZ]

Hi all,

I'm wondering how, for each peak in an x-ray spectra from a material (and using a crystal analyser), it is determined which energy level jump the peak corresponds to?

How would you figure out the correct value of n to substitute into Bragg's Law to find the energy of the beam?

Thank you!

Your post is very puzzling because it appears that you are mixing two different things into one.

Bragg's Law is the description that you get from x-ray diffraction (XRD) technique. It doesn't measure "energy level jump". Instead, it gives you information about the crystal structure of the material. The "n" in Bragg's Law is the diffraction order, not energy level quantum number.

x-ray photoemission spectroscopy (XPS) measures "energy level", or rather, core-level energy states. It is often used to identify the chemical composition of a material. One does not make use of the Bragg's law in XPS (at least, not usually).

So which one of these two that you want?

Zz.