Trigger Teleconference Nov 19, 2003, 3PM Central

Agenda

Updated Trigger timing

• Trimmed DC readout times to 40 ns
• Replaced Memory Lookup (~40ns) w/ ECL Switchyard logic (~10ns)
• All interactions triggers now 100ns behind beam trigger
• TOF ADC's have digital delay (~300ns?), can use for CKOV
• Looks like delay of ~150 nsec for TOF/CKOV TDCS may be sufficient
• Diagram in progess

Updated Trigger Logic

• Trigger Block Diagram
• Beam Diagram
• PID Diagram
• Mult Diagram
• Bullseye Diagram

Updated Trigger Modules

• List going into Prep soon
• Peter and Ron at FNAL Monday to help populate rack

Minutes (in semi-random order)

• Add RF trigger
• Review HyperCP module, is it now useful?
• Because beam is fast, can add it pre-veto logic
• Add logic for clears
• Let TOF crates perform T00/T01x4 AND and send one min cable for each to Trigger rack
• The LRS4532's can be read out when in gated mode
• We need scopes - ask Raja
• CKOV 4291s need separate crate (or use different TDCs)
• Used LRS429s when 365s were desired