Title :
DIALOG and SYNC: a VLSI chip set for timing of the LHCb Muon detector
Author :
Cadeddu, S. ; De Leo, V. ; Deplano, C. ; Lai, A.
Author_Institution :
Ist. Nazionale di Fisica Nucleare, Monserrato, Italy
Abstract :
The Muon detector of the LHCb experiment at CERN plays a fundamental role in the first trigger level. It is mainly realized by means of a MWPC technology and consists of about 126,000 front-end channels. High efficiency is necessary both at detector and front-end level to satisfy the trigger requirement of 5 hits per 5 Muon stations with an overall efficiency of 95%. This corresponds to having a single front-end channel detection efficiency of 99% within a time window of 20 ns and also poses the problem of an accurate time alignment of the whole detector. The problem is addressed by designing two custom integrated circuits, named DIALOG and SYNC, realized in the IBM 0.25μm radiation hard technology.
Keywords :
VLSI; analogue-digital conversion; calibration; data acquisition; muon detection; particle detectors; 0.25 micron; DIALOG; IBM 0.25μm radiation hard technology; LHCb Muon detector; SYNC; VLSI chip set; first trigger level; timing; Application specific integrated circuits; Delay effects; Detectors; Event detection; Helium; Integrated circuit technology; Large Hadron Collider; Mesons; Timing; Very large scale integration;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2003 IEEE
Print_ISBN :
0-7803-8257-9
DOI :
10.1109/NSSMIC.2003.1352028
