[dsg-hallb_rich] Equation used to calculate mirror radius of curvature after d0 tests

[Tyler Lemon]

Hi Marco,

I'm looking at the PlotD0.C code and see that the mirror radius of curvature is calculated using the equation below

Radius = (distance - zOffset_fiber - zOffset_mirror) + (zOffset_motor - Zmin)

Where distance is the distance between the CCD stand and mirror stand and Zmin is the z position of the fit d0.

What lengths do zOffset_fiber, zOffset_mirror, and zOffset_motor correspond to in the test station?

It is clear that they are offsets in z from certain items but what are they offsets to?

To maybe help, PlotD0.C has the values of them as:
zOffset_fiber = 40.682 mm
zOffset_mirror = 58 mm
zOffset_motor = 75.985 mm

-Tyler
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/dsg-hallb_rich/attachments/20211102/4077bab9/attachment-0001.html>