[Clas12_rich] RICH Mirror 4C Mathematica analysis

[Patrizia Rossi]

Great job!

thank you Tyler

patrizia
---------------------------------------------------
# Patrizia Rossi
# Jefferson Lab 
# 12000 Jefferson Avenue
# Suite 5
# Newport News VA 23606 (USA)
# e-mail: rossi at jlab.org
# phone: +1 (757) 269 7740
# fax: + 1 (757) 269 5800
# cell: +1 (757) 528 7606




> On 23/giu/2016, at 15:39, Tyler Lemon <tlemon at jlab.org> wrote:
> 
> Hello all,
> 
> I have analyzed the thickness analysis of mirror 4C in Mathematica using the data from the CMM measurements taken last week. The analysis for the other three mirrors is in process.
> 
> Attached are the following images of mirror 4C:
> 
> Edge measurement points plotted in NX 9.0.
> Mirror surface and back surface measurement points plotted in NX 9.0.
> Edge measurement points plotted in Mathematica.
> For the mirror and back surface NX 9.0 plot, the back surface is in red and the mirror surface is in blue.
> For the Mathematica plot, the mirror edges are plotted in red and the back edges are plotted in blue.
> 
> I have also calculated the mean thickness and standard deviation of each side of the mirror. The table of results is below.
> 
> Side
> Mean Thickness [mm]
> Standard Deviation [mm]
> Right
> 25.338
> 0.273
> Left
> 25.193
> 0.529
> Top
> 25.784
> 0.621
> Bottom
> 25.471
> 0.571
> In addition, I have also calculated the difference in mean thickness for each side and the error of the difference.
> 
> Sides
> Difference in Mean Thickness [mm]
> Error [mm]
> Left - Right
> 0.145
> 0.596
> Left - Top
> 0.591
> 0.817
> Left - Bottom
> 0.278
> 0.779
> Right - Top
> 0.446
> 0.679
> Right - Bottom
> 0.133
> 0.632
> Top - Bottom
> 0.314
> 0.844
> From these results, I think the mirror thickness is uniform. The thicknesses are ~1 [mm] of the thickness specified by the mirror manufacturer.
> 
> Note the survey equipment, per Jim Dahlberg, has a resolution of 60 [um].
> After the thickness analysis of the other three mirrors is complete, I will determine the radius of curvature from the CMM measurement points.
> 
> Best regards,
> 
> Tyler
> <4C surfaces- NX 9.jpg><4C edges-Mathmatica.JPG><4C edges- NX 9.jpg>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/clas12_rich/attachments/20160623/5146b8a6/attachment.html>