27 September 2004 to 1 October 2004
Interlaken, Switzerland
Europe/Zurich timezone

The DZERO Run II Level 3 Trigger and Data Aquisition System

27 Sep 2004, 17:10
Jungfrau (Interlaken, Switzerland)


Interlaken, Switzerland

oral presentation Track 1 - Online Computing Online Computing


D Chapin (Brown University)


The DZERO Level 3 Trigger and Data Aquisition (L3DAQ) system has been running continuously since Spring 2002. DZERO is loacated at one of the two interaction points in the Fermilab Tevatron Collider. The L3DAQ moves front-end readout data from VME crates to a trigger processor farm. It is built upon a Cisco 6509 Ethernet switch, standard PCs, and commodity VME single board computers. We will report on operating experience, performance, and upgrades. In particular, issues related to hardware quality, networking and security, and an expansion of the trigger farm will be discussed.

Primary authors

A Haas (University of Washington) D Chapin (Brown University) D Cutts (Brown University) G Brooijmans (Columbia University) G. Watts (UNIVERSITY OF WASHINGTON) R Rechenmacher (Fermi National Accelerator Laboratory) R. HAUSER (Michigan State University, USA) S Snyder (Brookhaven National Laboratory)

Presentation Materials