[Hallb] RICH is taking cosmic muons data

Wed Sep 6 13:32:32 EDT 2017

Dear Valery,
Congratulations to all of you for the nice results!
Best regards,
     Raffaella


Valery Kubarovsky wrote:
> Dear All,
>
> On Friday September 1st before midnight RICH group started to take 
> cosmic data with 32  tiles (96 MAPMTs, 64 pixels each) completely 
> equipped with front-end electronics. So in total we have 6144 RICH 
> channels. The trigger is using information from two trigger RICH tiles 
> and two scintillator counters. Please take a look to the attached plots.
> You can find more pictures with Cherenkov rings and experimental 
> equipment in
>
> https://userweb.jlab.org/~vpk/RICH12/2017_09_05%20RICH_96/
>
> The signal in the center of the ring is coming from the muon hitting 
> the front face of the MAPMT.
> It has many pixels fired.
> DAQ and front-end are working very stable.
> A lot of people and groups are participating in this project. Many 
> thanks to all of them!
>
> Regards,
> Valery
>
>
>
>
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