ORNL SANS: add geometry correction (divide by thickness)

[Mathieu Doucet]

The sample data and background data should independently be divided by there own thicknesses.

[Mathieu Doucet]

In [13504]:

Add workflow algo to fish out sample thickness and use it to normalise. Re #3426

[Mathieu Doucet]

In [13505]:

fixed default value. Re #3426

[Mathieu Doucet]

In [13521]:

Added geometry correction at the proper place for sample data. Re #3426

[Mathieu Doucet]

In [13524]:

Added geometry correction at the proper place for background data. Re #3426

[Mathieu Doucet]

In [13528]:

Remove sample thickness from absolute scaling factor. Re #3426

[Mathieu Doucet]

In [13529]:

Updated HFIR UI for geometry correction. Re #3426

[Mathieu Doucet]

In [13531]:

Updated EQSANS UI for geometry correction. Re #3426

[Mathieu Doucet]

To test: start the ORNL SANS UI and make sure the sample/bck thicknesses are saved to file. If you do a reduction with the same data file for the sample and the background, you should have I(Q) consistent with zero if your thicknesses are the same, and something else if they're not.

[Russell Taylor]

Beautiful

[Stuart Campbell]

This ticket has been transferred to github issue ​4273