A large-acceptance spectrometer for tracking in a high-multiplicity environment, based on space point measurements and high-resolution time-of-flight

Citation
L. Carlen et al., A large-acceptance spectrometer for tracking in a high-multiplicity environment, based on space point measurements and high-resolution time-of-flight, NUCL INST A, 431(1-2), 1999, pp. 123-133
Citations number
9
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
431
Issue
1-2
Year of publication
1999
Pages
123 - 133
Database
ISI
SICI code
0168-9002(19990711)431:1-2<123:ALSFTI>2.0.ZU;2-9
Abstract
A large acceptance tracking system, specially developed for tracking at ver y high particle densities encountered in ultra-relativistic heavy-ion colli sions is described. The system is a combination of multi-step avalanche cha mbers equipped with electronic pad readout with high position resolution in two dimensions and streamer-tube detectors with pad readout, with coarser position resolution, that is sufficient for safe pattern recognition. A hig h-resolution time-of-flight system (time resolution better than 90 ps) prov ides particle identification up to 8 GeV/c for pions and protons and pion/k aon separation up to 4 GeV/c. All detectors in the tracking system are read out with new, high-performance integrated circuits. The system can operate at high event rates due to efficient zero suppression. The performance of the system for tracking under real running conditions with Pb-beam at 158 A GeV in the WA98 experiment at CERN is presented. (C) 1999 Elsevier Science B.V. All rights reserved.