A fast programmable trigger for isolated cluster counting in the BELLE experiment

Citation
Hj. Kim et al., A fast programmable trigger for isolated cluster counting in the BELLE experiment, NUCL INST A, 457(3), 2001, pp. 634-639
Citations number
4
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
457
Issue
3
Year of publication
2001
Pages
634 - 639
Database
ISI
SICI code
0168-9002(20010121)457:3<634:AFPTFI>2.0.ZU;2-M
Abstract
We have developed a fast programmable trigger processor board based on a fi eld programmable gate array and a complex programmable logic device for use in the BELLE experiment. The trigger board accommodates 144 ECL input sign als, 2 NIM input signals, 24 ECL output signals, and the VME bus specificat ion. An asynchronous trigger logic for counting isolated clusters is used. We have obtained a trigger latency of 50 ns with full access to input and o utput signals via a VME interface. The trigger logic can be modified at any time depending on the experimental conditions. (C) 2001 Elsevier Science B .V. All rights reserved.