Title :
Online track processor for the CDF upgrade
Author :
Ciobanu, C. ; Chung, J. ; Gerstenslager, J. ; Hoftiezer, J. ; Hughes, R. ; Koehn, P. ; Neu, C. ; Sanchez, C. ; Thomson, E. ; Winer, B. ; Dittmann, J. ; Freeman, J. ; Holm, S. ; Lewis, J. ; Shaw, T. ; Wesson, T. ; Bloom, K. ; Gerdes, D. ; Goldschmidt, N. ;
Author_Institution :
Ohio State Univ., Columbus, OH, USA
Abstract :
A trigger track processor, called the eXtremely Fast Tracker (XFT), has been designed for the CDF upgrade. This processor identifies high transverse momentum (>1.5 GeV/c) charged particles in the new central outer tracking chamber for CDF II. The XFT design is highly parallel to handle the input rate of 183 Gbits/s and output rate of 44 Gbits/s. The processor is pipelined and reports the result for a new event every 132 ns. The processor uses three stages: hit classification, segment finding, and segment linking. The pattern recognition algorithms for the three stages are implemented in programmable logic devices (PLDs) which allow in-situ modification of the algorithm at any time. The PLDs reside on three different types of modules. The complete system has been installed and commissioned at CDF II. An overview of the track processor and performance in CDF Run II are presented.
Keywords :
drift chambers; nuclear electronics; pattern recognition; pipeline processing; programmable logic devices; trigger circuits; CDF upgrade; XFT; central outer tracking chamber; high transverse momentum charged particles; hit classification; online track processor; pattern recognition algorithms; programmable logic devices; segment finding; segment linking; trigger track processor; Calorimetry; Collaboration; Detectors; Joining processes; Laboratories; Mesons; Pattern recognition; Physics; Plugs; Programmable logic devices;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2001 IEEE
Print_ISBN :
0-7803-7324-3
DOI :
10.1109/NSSMIC.2001.1009706
