sPHENIX EMCal discussion

["Sickles, Anne M" <sickles AT illinois.edu>]

Hi,

Thanks to all those who attended the Urbana workfest last Thursday and 
Friday!  We had a very productive two days of meetings and lab tours.  The 
slides shown at the meeting are available at:

https://indico.bnl.gov/conferenceDisplay.py?confId=1262

The main topics of discussion were:

prototype for test beam next April at Fermilab.  
—modules (1D projective) should be at BNL for testing purposes by the end of 
October.  The test will be of an 8x8 array.  The plan is to have some of the 
modules produced at THP and some produced in Urbana.  The drawing for these 
modules is available (Craig has it) and the fibers (long lead time) are on 
order.  In this context and the simulations there was discussion of the 
effect of fiber-free absorber area on the overall performance.  Sean had some 
slides about BNL experience in producing modules and Vera and Eric discussed 
the Urbana experience in the lab tour.

simulation:
—2D projective modules according to the mechanical design are now available 
in Geant4.  For simulation performance plots headed toward the pCDR, Jin will 
coordinate the effort.

pCDR: outline of the EMCal section with names of primary contributors was 
circulated to the list on 8/14 by John Haggerty.  Comments should be sent to 
the list as well as additional volunteers.  The draft should be complete by 
9/14.  The final version is needed for the November cost and schedule review.

There was also discussion of SiPM issues, mechanical design, cooling and 
calibration.  Please see the detailed slides from Chris C., Sean and John.

In light of all these discussions, we will skip the EMCal meeting this week 
and talk again in 2 weeks (8/31).

Best,
Anne



attendees: Christine Aidala, Vincent Andrieux, Craig Woody, Jin Huang, Sean 
Stoll, John Haggerty Chris Cullen, Chris Pinkenburg, Eric Mannel, Martin 
Purschke, Oleg Tsai, Vera Loggins, Mike Phipps and Eric Thorsland