ClusterAlg.gif (577 bytes) The ATLAS Level-1 Calorimeter Trigger

[Home] [Architecture] [Meetings] [Participants] [Publications] [Software] [Search]

Phase 2 Demonstrator

This second generation bit-parallel trigger demonstrator will be used to study data communication aspects of the final level 1 trigger system.

Documents describing the major components of this system include the following. Except where specified, the format is usually PostScript.

Description of Modules

FADC modules

Designed and built by the University of Heidelberg  (IHEP)

  • P. Hanke et al., A Flash Analog-to-Digital Converter for Trigger Tests with the ATLAS Calorimetry RD27 DAQ Note #41, June 1995. PostScript or HQX formats.

Timing Control Module

Transmitter Module

Cluster Processing Module

Crate system, incorporating a special high speed backplane

DAQ software

  • Runs on a Motorola 68040 processor under the LynxOs operating system.



This page was last updated on 16 December, 2013
Comments and requests for clarification may be sent to