TOPAS manual scale entry off by a factor of 10

[shelbygalinat]

It seems to me that the topas_scale variable in topasdiff.py calculated from the manual user input of the TOPAS scale factor is too large by a factor of 10. If you do not enter a scale factor manually, the approximated scale factor is 10x less. I'm not sure why this is happening - perhaps there was a TOPAS update in how the TOPAS scale factor is worked into the intensity calculation in TOPAS?

Regardless, this is an easy fix:
if topas_scale: scale = float(topas_scale) ** 0.5/10

[stefsmeets]

Are you sure about this? I can't find this from the technical reference: http://www.topas-academic.net/Technical_Reference.pdf

Do you have another scale applied somewhere?

[shelbygalinat]

I also can't find it in the technical reference, so I'm not sure. I'm using neutron data, but I've checked and I have the same issue with x-ray data. I'm essentially just printing the scale factors right after calculating them after the user input or after the default approximation, so there shouldn't be another scale factor applied anywhere. I'm also printing the full dataframe with fdiff, and it's pretty obvious that the factor of 10 screws up that math.

Have you tried comparing manual scale entry and default scale approximation for any data you have? I'm curious if it's just a bug on my end somehow.