Agenda

Review of minutes from 15-Feb-2008 meeting
Status report on online-related R&D and PED work - various people
Results of testing Intel-based VME single board computers - Dave Abbott
Status report on event size study (see Media:Somov_OWG_29Feb08.pdf) - Alex Somov
Online_Major_Milestones
Online Action Items

Time/Location

2pm Fri 29-Feb-2008 CC F227

Fri 14-mar-2008 2pm CC F326

Attendees: Dave A, Elke A, Elton S, Alex S, Vardan G, Carl T, Simon T, Fernando B, Elliott W.

R&D and PED status

Fernando reported on the electronics meeting earlier this week. Much progress, but still much left to do, including lots of documentation needed for the May subsystem review (as pre-brief material, etc).
Dave A reported on Graham's progress with design and documentation of the EMU (which Graham will present at the next OWG meeting). Drivers are also coming along, documentation on other CODA components, etc.
Fernando pointed out we may need additional meetings (on trigger, DAQ, electronics, etc) between now and the May review beyond the every-other-Friday OWG meeting.
Elke said she will aim to have the review towards the end of May, if possible (reviewers still need to be identified, etc).

L1 Trigger Algorithm and Related Studies

Alex S. is now running the monte carlo and getting preliminary results:

BCAL not working yet, he is working with Richard on this.
Eugene's MC has a slight disconnect between data under and over 3 GeV, where the model switches from Pythia to measurements.
No EM background included yet.
Some digi routines need updating from integrating to flash ADC.
Alex showed TOF occupancies, FCAL occupancies, double-hit rates, cluster frequencies, and rates of these vs photon energy with various cuts, how many events survived, etc.
Max TOF rate is 24 kHz at 10**8.
Using TOF and FCAL in coincidence drops hadronic rates quite a bit compared to either alone. Note that we are designing for 200 kHz trigger rate.
See his presentation for more details. This work in continuing.