Make New Entry,
Make Followup Entry
User name R. Michaels
Log entry time 13:02:00 on July 01, 2010
Entry number 329283
This entry is a followup to: 329264
keyword=gate timing very precisely wrong
I talked to Bogdan about my concerns on the L-HRS gate timing
and he said it has been wrong for Cerenkov, though we disagreed
on the sign. So when Neil and I aligned the timing we used this
apparently wrong standard. Another iteration will be needed.
Keep in mind that since we don't have retiming, all the triggers
need to be aligned at the input of the trigger supervisor.
I'm a bit concerned that APEX abandoned the idea of retiming,
which is a method to make all gate timings fixed and independent
of the trigger time. It may come back to haunt us with the
very stringent timing requirements we have for narrow gates, etc.
A copy of this log entry has been emailed to: bogdanw,aserg