How to do the Energy dependency estimation from X-ray irradiated material in ESR spectrometry without using NIST data generated?

28 September 2023 1 7K Report

How to estimate the energy dependency of the mass absorption coefficient without the need to use the Ux/p and cm3/g data set from NIST software.

Gerhard Martens

Dear Rabiu Adamu ,

why not using the NIST/XCOM data base?

(https://physics.nist.gov/PhysRefData/Xcom/html/xcom1.html)

Usage is very simple and the data are reliable...

... other energy values than the standard ones can be used ...

... even a series of energy values via upload of a datafile ...

One has to take a bit care about the units (e.g. MeV is used) and the decimal points (instead of commas) in the presentation of the values.

Some instructions can be found in:

Presentation How to use XCOM

Alternatively you may use the parametrizations given here:

Article A parametrization of the mass attenuation coefficients for e...

But I have not cross-checked the reliability of these results up to now.

Good luck and

best regards

G.M.

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