Upgrade of the level-0 trigger system for BNL-E949

Author

Yoshioka, T. ; Nomachi, M. ; Artamanov, A. ; Bhuyan, B. ; Frank, J.S. ; Fujiwara, T. ; Higa, K. ; Kettell, S.H. ; Komatsubara, T.K. ; Konaka, A. ; Kozjevnikov, A. ; Kushnirenko, A. ; Muramatsu, N. ; Nakano, T. ; Nomura, T. ; Petrenko, S. ; Poutissou, R. ;

Author_Institution

High Energy Accelerator Res. Organ., Ibaraki, Japan

Volume

51

Issue

3

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

334

Lastpage

339

Abstract

A new programmable trigger board and digital mean-timer modules using complex programmable logic device have been introduced to the trigger system of the BNL-E949 experiment. The online dead time was reduced from 4.0% to 1.7% by introducing an on-chip prescaler to the programmable trigger board. The acceptance loss of the online photon veto was reduced from 4.9% to 1.8% by introducing the mean-timer modules.

Keywords

field programmable gate arrays; nuclear electronics; programmable logic devices; trigger circuits; BNL-E949; complex programmable logic device; digital mean-timer modules; level-0 trigger system; on-chip prescaler; online dead time; photon veto; programmable trigger board; Councils; Detectors; Field programmable gate arrays; Helium; Laboratories; Magnetic field measurement; Mesons; Physics; Programmable logic arrays; Programmable logic devices; CPLD; Complex programmable logic device; FPGA; field-programmable gate array; mean-timer; trigger;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2004.828867

Filename

1310521