[ODIN] White beam profile

[nvaytet]

They want to determine how the beam spreads out as a function of position for the camera.
They will put the CMOS/Orca camera in the beam, and image directly what is coming in (through a pin hole).

Plot a 2d image, and make 1d histograms along the x and y dimensions of the same signal.
Then, more the camera further away from the source and repeat the measurement.

In the end, we need to have a plot with 1d x/y profiles with different colours for different distances:

This should just be a notebook on code shelf that does this.
To begin with, we can assume that each distance will be recorded in a new nexus file.