An on-line trigger processor for large transverse energy events

Author

Zioulas, G. ; Arenton, M. ; Chen, T.Y. ; Conetti, S. ; Cox, B. ; Delchamps, S. ; Etemadi, B. ; Fortney, L. ; Guffey, K. ; Haire, M. ; Ioannu, P. ; Jenkins, C.M. ; Judd, D.J. ; Kourkoumelis, C. ; Koutentakis, I. ; Kuzminski, J. ; Lai, K.W. ; Manousakis-Kat

Author_Institution

McGill Univ., Montreal, Que., Canada

Volume

36

Issue

1

fYear

1989

fDate

2/1/1989 12:00:00 AM

Firstpage

375

Lastpage

379

Abstract

A trigger processor for the selection of events in which photons of large transverse momentum are detected by a lead and scintillating glass calorimeter was designed, constructed, and operated at interaction rates ranging from 2 kHz to 2 MHz. The system achieved suppressions of the raw interaction rate of as much as 1×10^-5. Raw distributions of transverse momenta and direct photon event sensitivities are presented for data taken with 300-GeV/c pion and proton beams on a lithium target

Keywords

multiprocessing systems; physics computing; satellite computers; signal processing equipment; special purpose computers; 2 kHz to 2 MHz; ⁷Li(p,gamma); ⁷Li(pion, X); direct photon event sensitivities; on-line trigger processor; photon detection; raw transverse momentum distributions; transverse energy events; trigger processor; Anodes; Cathodes; Event detection; Glass; Length measurement; Lithium; Mesons; Particle beams; Photomultipliers; Production;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.34467

Filename

34467