[Rgc] [EXTERNAL] Problem with FTCal

[silvia at jlab.org]

Dear Raffaella and Eugene,
when you say "a lot of work", do you have an estimate of how long trying
to fix this issue would take? We still have roughly one week before the
beam comes back. Giving up a priori to 1/4 of our data is a bit tough for
me, especially given the lots of issues this experiment had until now, and
the fact that we are not going to have an extension at the end of March.
If you could please clarify what time scale we're talking about for the
repairs, it would be very helpful to make our mind up.
Thank you!
Best regards,
Silvia


> Dear Sebastian and Silvia,
>
> Performing the final checkout on the FT, we found that we are not getting
> useful signals from one quadrant of the calorimeter. You can find more
> details in https://logbooks.jlab.org/entry/4111492
> <https://logbooks.jlab.org/entry/4111492>.
>
> I am not sure when it happened but it is consistent with an HV cable being
> disconnected on the detector side.
>
> Since fixing this requires having access to the detector, which is a lot
> of work, Eugene asked me to inform you and ask you for feedback on whether
> you would like to have this fixed or if you would accept running with a
> missing quadrant.
>
> Best regards,
> 	Raffaella