The "Road Warrior" for the CDF online silicon vertex tracker

Author

Adelman, J. ; Annovi, A. ; Bardi, A. ; Belforte, S. ; Carosi, R. ; Catastini, P. ; Cerri, A. ; Dell´Orso, M. ; Galeotti, S. ; Giannetti, P. ; Lewis, J. ; Liu, T. ; Maruyama, T. ; Morsani, F. ; Pedreschi, E. ; Piendibene, M. ; Pitkanen, M. ; Reisert, B. ;

Author_Institution

Univ. of Chicago, IL, USA

Volume

53

Issue

2

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

648

Lastpage

652

Abstract

The Online Silicon Vertex Tracker (SVT) is a new trigger processor dedicated to the 2-D reconstruction of charged particle trajectories at Level 2 of the CDF trigger. The SVT links the digitized pulse heights found within the Silicon Vertex detector to the tracks reconstructed in the Central Outer Tracker by the Level 1 Fast Track finder. The SVT was recently modified in order to increase its efficiency. The new configuration uses all the Silicon Vertex detector layers. On the other hand the processing time has increased. This can be a problem at higher luminosities of the Tevatron. The "Road Warrior" is a new board that eliminates redundant track candidates before Track Fitting. It is based on the principle of the Associative Memory. The algorithm used is described in the paper, as well as the hardware implementation.

Keywords

position sensitive particle detectors; silicon radiation detectors; CDF online silicon vertex tracker; Road Warrior; Tevatron; associative memory principle; central outer tracker; charged particle trajectories; fast track finder; silicon vertex detector; trigger processor; Associative memory; Azimuthal angle; Detectors; Geometry; Hardware; Helium; Particle tracking; Pattern recognition; Silicon; Trajectory;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2006.871256

Filename

1621379