[Dsg-rich] RICH is taking cosmic muons data

[William Bertozzi]

Valery and RICH Group Collaborators:

Congratulations!  Great job!

Bill

William Bertozzi
Professor of Physics, Emeritus
Department of Physics, and
Laboratory for Nuclear Science
Massachusetts Institute of Technology
26-437
77 Massachusetts Avenue
Cambridge, MA 02139
617-253-5167
Cell: 617-899-3731 (preferred)
________________________________
From: Hallb [hallb-bounces at jlab.org] on behalf of Valery Kubarovsky [vpk at jlab.org]
Sent: Tuesday, September 05, 2017 6:56 PM
To: hallb at jlab.org; dsg-rich
Subject: [Hallb] RICH is taking cosmic muons data

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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