Trigger control in a high energy physics experiment

Author

Corazziari, F. ; Falciano, S. ; Luminari, L. ; Menczer, F.

Author_Institution

INFN, Roma, Italy

Volume

36

Issue

5

fYear

1989

fDate

10/1/1989 12:00:00 AM

Firstpage

1508

Lastpage

1513

Abstract

Control and diagnostic tools for the event-filtering system (trigger) of the L3 experiment at the LEP (Large Electron Positron) collider have been implemented using an expert system. The structure and behavior of the trigger electronics has been modeled using the hybrid framework (allowing both frame-based design and rule-based reasoning) of the shell NEXPERT Object, which also provides a user friendly interface. An open architecture allows the integration in the system of conventional and widespread tools, like procedural languages and database management systems, and an easy interface to the whole online environment. The project goals, base model, development tools, and present implementation and future development of the trigger control are described

Keywords

data acquisition; expert systems; nuclear electronics; physics computing; real-time systems; trigger circuits; L3 experiment; LEP; Large Electron Positron; NEXPERT Object; database management systems; diagnostic tools; event-filtering system; expert system; hybrid framework; open architecture; procedural languages; trigger electronics; user friendly interface; CAMAC; Clocks; Control systems; Diagnostic expert systems; Filtering; Hardware; Logic devices; Neurons; Power system reliability; Registers;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.41075

Filename

41075