trgEM status (Neil Dyce)
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Overview
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Standalone FORTRAN 77 program to simulate the L1 calorimeter trigger.

Works on GEANT hit data (currently dedicated ascii files).

Status
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Current geometry is basic - crystal locations in phi and theta.
Performs event mixing at the hit level if required
Full digitisation, a digitised history of the ADC output for 
each channel is produced internally, it is not intended to 
permanently store (i.e. disk or tape) this large amount of data.

Currently (Nov 29th) a movie style trigger simulation is 
used, in which the time history of the data is divided into
time slices corresponding to ADC samples, and a TDR like 
trigger algorithm is run on each time slice.

Plans
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It is intended to run feature extraction on the event histories
and use the results to develop more sophisticated triggers.
This is probably the main task for the immediate future.
Other improvements revolve around making the program more 
flexible and user friendly, (easier access to the data -
ntuples), and moving to dbio.

Need to do everything by trigger PDR Review of February 23.

Manpower
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Neil Dyce, package author, developer and user
Paul Dauncey, developer and user
Iain Scott, developer and user

Help is not badly needed.

Needs from other parts of simulation
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May need improved Beampipe simulation since TDR studies showed that
most two-cluster triggers come from edge of BBSIM BPIP model.

bbsim integration
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OK with 0.5.5 (fairly loosely coupled)