LHCb Upgrade Electronics
Mailing list:
Go to simba.cern.ch, search for lhcb-upgrade-electronics
Link to upgrade electronics meetings:
http://lhcb-elec.web.cern.ch/lhcb-elec/html/upgrade.htm
Meetings in 2010:
12th August….???
14th October
9th December
Ken Wyllie, CERN
1
LHCb electronics, 10th June 2010
News
On-going meetings for Velo, OT, RICH, Calo, Muon
Not much activity for IT/TT
Interaction trigger hardware strategy defined (see later)
Muon strategy defined (see Caterina’s talk)
ACTEL FPGA irradiation – postponed until August
(accelerator scheduling problems)
GBT: good progress
Proto SERDES: initial tests look good
GBTIA successfully coupled to photodiode
Corrected version of GBLD under test
Ken Wyllie, CERN
2
LHCb electronics, 10th June 2010
Radtol Voltage Regulators
Feedback from
Calo (1200 +ve, 300 –ve)
OT
(2000 +ve, 500 -ve)
Other sub-detectors?
But don’t forget the new DC-DC convertor:
See link to power working group at
http://lhcb-elec.web.cern.ch/lhcb-elec/html/upgrade.htm
Ken Wyllie, CERN
3
LHCb electronics, 10th June 2010
GLIB
Test board under design at CERN for GBT links, CERN support
Simple, standalone
(mTCA format)
4 x SFP+ transceivers
GbE interface
Expansion with additional mezzanine (eg SNAP12)
Aim for autumn 2011
Interested customers:
Please let me know
NB: this is NOT TELL40!!!
Paschalis Vichoudis, CERN
Ken Wyllie, CERN
4
LHCb electronics, 10th June 2010
Architecture
Ken Wyllie, CERN
5
LHCb electronics, 10th June 2010
Discussion points
Define limits on packet size + latency of data from FE
simulation data from sub-detectors -> dedicated meeting
Where do we apply (eg) latency limits? In FE or BE?
Can we allow a mixture of ZS and Non-ZS within a sub-detector?
I think yes (if header format is respected)
Interaction trigger: fixed latency?
TFC broadcast the bunch structure? ie indicate when no-collisions
Ken Wyllie, CERN
6
LHCb electronics, 10th June 2010
More discussion points
We need a few TELL40 recipes (mezzanines?):
GBT RX
GBT ECS/TFC
GOL RX
Define TELL40/DAQ interface (see Niko)
More details needed for:
TFC: Richard+Federico
DAQ interface: Beat+Niko
Ken Wyllie, CERN
7
LHCb electronics, 10th June 2010
Interaction Trigger
Ken Wyllie, CERN
8
LHCb electronics, 10th June 2010