[Dsg-rich] Optical Measurements complete for all RICH mirrors

[Tyler Lemon]

Dear Marco Mirazita, 

Optical tests are complete for all ten spherical mirrors. Attached are slides containing the results. Questions on the results and upcoming tasks are below in bold. 

The slides attached contain: 


    1. Pictures of test setup 
    2. d0 measurement results 
    3. Comparison to CMM data calculation 
    4. October 2016 measurements compared to Summer 2016 measurements 
    5. Issues with Radius fit for Mirror 6 

Note for mirror 6 (highlighted in yellow in all tables) the mirror radius of curvature is 2729.81mm. It was mentioned that the PlotD0.C script would need to be changed since the distance between the CCD stand and mirror stand had changed since the. According to the paper logbook, this measurement was 2760mm. PlotD0.C was changed to reflect this and R = 2729.81mm is the result. 

Questions: 


    1. Should mirror 6 d0 measurement be repeated with the layout used for all other mirrors? 
    2. Are there any measurements that should be repeated? 
    3. When should the mirrors be prepared to ship for final coating? 

Please let us know regarding these questions. 

Best regards, 
Tyler 

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