[Clas12_rich] Macro issue resolved - spot test for RICH mirrors 1 and 2
balossino at fe.infn.it
balossino at fe.infn.it
Thu Aug 25 17:04:25 EDT 2016
Hi Tyler,
that's a good news, I was about to reply.
Yes, it is right that the fit-d0 values are greater than the minimum
observed-d0 values because of the fit. I would say (and Marco Contalbrigo
or Marco Mirazita can correct me) that in this kind of analysis the fit is
not necessary, the most important thing is to find a minimum and I would
say that what you have found seems reasonable.
The measurements of the mirror 2 are still weird, but maybe it can be
correleted with the use of the sensor support.
If you need anything else we can set a skype meeting tomorrow.
Thank you for performing this analysis,
Ilaria
> Hello all,
>
> The issue mentioned in my previous email with the d0-fit-z0-pdf macro has
> been resolved. The scan.txt file was not named correctly. After naming it
> in the correct format, the fit macro was able to be run. The plots of the
> fit are attached. In the plots, the x-axis is the scale on the CCD mount.
> This number was added to the distance between the wall and the start of
> the scale on the CDD mount to get the z measurements below.
>
> Mirror 1
> d0 = 1.891 mm
> z = 2725.796 mm
>
> Mirror 3
> d0 = 1.700 mm
> z = 2725.013 mm
>
> These fit-d0 values are greater than the minimum observed-d0 values. Is
> this to be expected because how the macro fits the data?
>
> Best regards,
> Tyler
>
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