Title :
Test-beam results from the ATLAS level-1 calorimeter trigger demonstrator
Author :
Bohm, C. ; Brawn, I. ; Bright-Thomas, P. ; Connors, A. ; Edwards, J. ; Eisenhandler, E. ; Ellis, N. ; Engström, M. ; Farthouat, P. ; Garvey, J. ; Gee, C.N.P. ; Gillman, A.R. ; Hanke, P. ; Hatley, R. ; Hellman, S. ; Hillier, S. ; Kluge, E.E. ; Landon, M. ;
Author_Institution :
Fysikum, Stockholm Univ., Sweden
fDate :
8/1/1999 12:00:00 AM
Abstract :
The ATLAS level-1 calorimeter trigger will utilise a number of advanced technologies, many of which have already been successfully demonstrated. To evaluate the different technologies associated with the important areas of high-speed data transport a large demonstrator system has been designed and operated during the last two years, using signals from prototype calorimeters in the ATLAS test-beam. Using this system, inter-crate data transmission and reception have been demonstrated at over 1.4 Gbyte/s, with individual links running at up to 1.6 Gbaud. Operating with 160 Mbit/s signals across a transmission-line backplane, custom transceiver ASICs have achieved inter-module data fanout at peak rates above 800 Mbyte/s. With the addition of further modules, the system was extended to emulate a vertical slice through the ATLAS level-1 calorimeter trigger. We present here the results from these tests, including measurements of bit-error rates across different data paths
Keywords :
application specific integrated circuits; nuclear electronics; particle calorimetry; position sensitive particle detectors; semiconductor counters; trigger circuits; ATLAS level-1 calorimeter trigger demonstrator; bit-error rates; custom transceiver ASICs; high-speed data transport; inter-crate data transmission; inter-module data fanout; test-beam results; transmission-line backplane; Astronomy; Delay; Detectors; Large Hadron Collider; Mesons; Physics; Poles and towers; Pulse shaping methods; Signal processing; Testing;
Journal_Title :
Nuclear Science, IEEE Transactions on
