Automatic Measurement and split ROI/quadrants for concentric circles

Good day,
I am relatively new to the programming and image analysis world. I am working on a project which focuses on the automation of detecting the shape of these concentric circles and being able to measure the distance between each circle. I also need to split the ROI into quadrants. Is there any way these can be done by using Macro? Glad if anybody could help. Thanks. I have posted the results i eventually want but done in an automated way with quadrants

Here you find a macro to create segments which might help:

One way to measure distances between the circles (or all circle points) is described here: