Title :
Test-beam results from the ATLAS level-1 calorimeter trigger demonstrator
Author :
Bohm, C. ; Brawn, I. ; Bright-Thomas, P. ; Connors, A. ; Edwards, J. ; Eisenhandle, 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 :
Stockholm Univ., Sweden
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; calorimeters; high energy physics instrumentation computing; nuclear electronics; position sensitive particle detectors; trigger circuits; 1.4 Gbyte/s; 800 Mbyte/s; ASIC; ATLAS; bit-error rates; inter-crate data transmission; level-1 calorimeter trigger; Astronomy; Delay; Detectors; Large Hadron Collider; Mesons; Physics; Poles and towers; Pulse shaping methods; Signal processing; Testing;
Conference_Titel :
Nuclear Science Symposium, 1998. Conference Record. 1998 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-5021-9
DOI :
10.1109/NSSMIC.1998.775145
