[Clas12_rich] Spot test result for Mirrors 5 and 6

[Marco Mirazita]

Hi Tyler,
thank you for this update, the results are in line with what has been 
obtained for the other mirrors.
We are working in Frascati to finish all the setup necessary for the 
complete test of the mirrrors, it would require more or less a couple of 
weeks. Then we will plan new measurements.
Did you also do the CMM measurements?
Marco

Il 2016-09-07 18:01 Tyler Lemon ha scritto:
> Hello all,
> 
> We have completed the spot test for RICH Mirrors 5 and 6. The observed
> results are as follows:
> 
> MIRROR 5:
> 
>  d0 = 1.210 mm
> 
>  R = 2695 mm
> 
> MIRROR 6:
> 
>  d0 = 1.151 mm
> 
>  R = 2695 mm
> 
> Both Mirrors 5 and 6 meet the spec of d0 < 2.5 mm.
> 
> d0 for all spherical mirrors have been measured. Should we repeat any
> measurements with the current set up of the CCD mount and mirror
> resting on the table? Also, when would the mirror stand that Marco
> Mirazita took back to INFN return to JLab so we can repeat the d0
> measurements with a more stable stand? Please let us know.
> 
> Best regards,
> 
> Tyler
> 
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