TDR Updates - External Systems
This page provides information on changes made to external systems affecting the
calorimeter trigger design after submission of the TDR. Information on changes to TDR Algorithms and Technologies
is also available.
| TDR - page 82-83 (5.2.1.1,
5.2.1.2), 122 (fig 6-4, 6.2.1.1) |
Updated Version |
| Signals were received and converted to ET in Preprocessor line receivers. |
Now done using Receiver Stations, similar to Liquid Argon calorimeters.
The TileCal Receiver stations are the responsibility of the Calorimeter Trigger group |
| Presented: Heidelberg Minutes 11/98, Birmingham Minutes 3/99,
P. Hanke |
| Status: Proposal agreed by Calorimeter Trigger Group |
| TDR - Pages 96 (5.2.4),
117 (6.1.1), 122 (fig 6-4) |
Updated Version |
| FCAL modularity was 32 in phi by 2 in eta, summed over e.m. and hadronic,
for each endcap. The total number of signals was therefore 128. |
Modularity is now 16 in phi by 4 in eta for each endcap. There are no
Tower Builder cards. E.M. and hadronic signals are not summed. Hadronic signals are
divided in depth between FCAL2 and FCAL3; these are summed in the Receiver Stations. Thus
the total number of FCAL signals is now 384 into the Receiver Stations and 256 into the
Preprocessor. After summing into pseudo-jet elements in the Preprocessor, the number of
signals to the Jet/Energy-sum Processor is 16 in phi by 1 in eta, with e.m. and hadronic
separate, for each endcap. The total number of elements is therefore 64. |
| Presented: Birmingham Minutes 3/99, P. Hanke |
| Status: Proposal agreed by Calorimter Trigger and FCAL
Groups. |
|
The ATLAS Level-1 Calorimeter Trigger