The CLAS start counter

Authors
Taylor, S Ahmad, S Distelbrink, J Mutchler, GS Smith, E Smith, T
Citation
S. Taylor et al., The CLAS start counter, NUCL INST A, 462(3), 2001, pp. 484-493
Citations number
7
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
01689002 → ACNP
Volume
462
Issue
3
Year of publication
2001
Pages
484 - 493
Database
ISI
SICI code
0168-9002(20010421)462:3<484:TCSC>2.0.ZU;2-4
Abstract
The design, construction, and performance of a hexagonal-nose-cone-shaped p lastic scintillation counter system is described. This "Start Counter" is u sed as part of the trigger and to measure event start times for photon beam running with CLAS in Hall B at the Thomas Jefferson National Accelerator F acility. The Start Counter is constructed of three 3-mm thick coupled-paddl e scintillators and achieves a software-corrected time resolution of 260 ps . Each coupled-paddle scintillator operated without appreciable sagging up to similar to 1.2 MHz rate. (C) 2001 Elsevier Science B.V. All rights reser ved.