The New DÃ\x98 Level-1 Calorimeter Trigger

Author

Abolins, M. ; Adams, M. ; Adams, T. ; Agulio, E. ; Bagby, L. ; Ban, J. ; Barberis, E. ; Beale, S. ; Benitez, J. ; Biel, J. ; Brock, R. ; Bystricky, J. ; Calvet, D. ; Cihangir, S. ; Cwiok, M. ; Edmunds, D. ; Evans, H. ; Fantasia, C. ; Foglesong, J. ; Green

Author_Institution

Michigan State Univ., East Lansing, MI

Volume

3

fYear

2006

fDate

Oct. 29 2006-Nov. 1 2006

Firstpage

1392

Lastpage

1395

Abstract

With increasing Tevatron luminosity, efficient triggers that meet the bandwidth limitations of the experiment´s data acquisition system become more and more difficult to construct. To meet these challenges, the DOslash experiment has significantly enhanced its triggering capabilities. A major component of this upgrade is a completely re-designed Level-1 calorimeter trigger (L1Cal). This new system uses novel architecture and algorithms to maintain acceptable background rejection while preserving or even improving signal efficiency at the highest luminosities foreseen. We describe interesting features of the L1Cal and give highlights from its first few months of operation.

Keywords

ionisation chambers; nuclear electronics; particle calorimetry; scintillation counters; trigger circuits; D0 experiment; Level-1 calorimeter trigger; Sliding Windows; background rejection; signal efficiency; Bandwidth; Clustering algorithms; Data acquisition; Extrapolation; Geometry; Helium; Nuclear and plasma sciences; Physics; Poles and towers; Throughput; Calorimeter; Dzero; IEEEtran; Sliding Windows; Trigger;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2006. IEEE

Conference_Location

San Diego, CA

ISSN

1095-7863

Print_ISBN

1-4244-0560-2

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2006.354161

Filename

4179274