Gaussian Energy Broadening tally

[gxa]

TL;DR

FWHM-Gauss Energy Broadening

I took measurements by placing 137Cs, 60Co, and 133Barium 5 cm away from the detector and simulated this with the MCBEND program. First, I compared the dose rates. Now I want to compare the spectra. I examined similar studies. They explain the way to go, but I am not exactly sure how to do it. I have this on Excel. There are graphics. I would be happy if you could help me on what path to follow.I want to apply Gaussian energy brodening in the MCBEND code. What do I need to do to find the parameters here?

 

[Alex A]

I'll give this my best shot. I think you need to have measured the real source for all those cases. I think you would measure the FWHM - that is the width of the peak half way up - for every known peak. That would give you the data you need.

From that it probably wouldn't be too difficult to solve for a, b and c such that the mean square difference is minimised.