The trigger system of the NOMAD experiment

Citation
J. Altegoer et al., The trigger system of the NOMAD experiment, NUCL INST A, 428(2-3), 1999, pp. 299-316
Citations number
29
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
0168-9002 → ACNP
Volume
428
Issue
2-3
Year of publication
1999
Pages
299 - 316
Database
ISI
SICI code
0168-9002(19990604)428:2-3<299:TTSOTN>2.0.ZU;2-2
Abstract
The NOMAD trigger system is described in the present paper. It is made up o f a large area plastic scintillator veto system, two trigger scintillator p lanes inside a 0.4 T magnetic field and their associated trigger electronic s. Special features of the system consist of the use of proximity mesh phot omultipliers which allow the trigger scintillators to operate in the magnet ic field, and the use of custom-built VME modules which perform the trigger logic decisions, the signal synchronisation and gate generation, event cou nting and livetime calculations. This paper also includes a description of each of the NOMAD triggers, with their calculated and measured rates, effic iencies and livetimes. (C) 1999 Elsevier Science B.V. All rights reserved.