Dear Matteo,

µx that you measured is dimensionless: x in the thickness (in cm) and µ the Absorption coeffiecient (per cm). Indeed, if you want to know the Absorption coefficient µ of your sample, you should divide µx by x.

All the best,
Alexey

2016-05-13 2:11 GMT+02:00 Matteo Busi <basebush@gmail.com>:
Hi Bruce, Matt, and  mailing list readers,

I have one question regarding the XAFS data. I have collected absorption coefficient in fluorescence regime of a CuSO4 penta hydrate sample(however my question can be generalized to any compound). 
Through Athena I then obtained the x\mu(eV) spectra as well as \chi(k) and \chi(R). I am wondering how can I assign a unit to the x\mu values. I would like to have it in the cm^-1 or cm^2 kg^-3 unit so than I can match it with tabulated data for the Copper absorption coefficient and proceed with my studies. 

In case a treatment is needed for the normalized \mu , that would also suit my situation.

My idea was to divide by the thickness of the sample but I don't find a reasonable justificiation for this.

I really hope I made the question clear to any reader this time, and if that is not the case I apologyze in advance.

Best Regards
Matteo

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