DIALOG and SYNC: a VLSI chip set for timing of the LHCb muon detector

Author

Cadeddu, Sandro ; De Leo, Vincenzo ; Deplano, Caterina ; Lai, Adriano

Author_Institution

Inst. Nazionale di Fisica Nucl.e, Cittadella Univ., Monserrato, Italy

Volume

51

Issue

5

fYear

2004

Firstpage

1961

Lastpage

1967

Abstract

The Muon detector of the Large Hadron Collider (LHCb) experiment at the Center for Nuclear Research 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 five hits per five 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 0.25 μm technology.

Keywords

application specific integrated circuits; multiwire proportional chambers; muon detection; nuclear electronics; DIALOG; LHCb muon detector; Large Hadron Collider; MWPC technology; SYNC; VLDI chip; custom integrated circuits; front-end level; multiwire proportional chamber; single front-end channel detection efficiency; time alignment; trigger level; trigger requirement; Application specific integrated circuits; Delay effects; Detectors; Event detection; Helium; Integrated circuit technology; Large Hadron Collider; Mesons; Timing; Very large scale integration;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2004.835574

Filename

1344268