Design of a trigger and data acquisition system for a detector at PEP-II

Author

Becker-Szendy, R. ; Briggs, D. ; Haller, G. ; Hoeflich, J. ; Innes, W.

Author_Institution

Linear Accel. Center, Stanford Univ., CA, USA

Volume

41

Issue

4

fYear

1994

fDate

8/1/1994 12:00:00 AM

Firstpage

1289

Lastpage

1293

Abstract

This paper proposes a design of a trigger and data acquisition system for a detector at the PEP-II B Factory. The system is asynchronous, data-driven, and scalable. Design goals include orthogonal tracking and calorimetric triggers, minimal dead time, graceful degradation, high efficiency, and useful performance in the face of backgrounds so high as to overwhelm reconstruction. Also described are instrumentation of the Drift Chamber, based on 8-bit FADCs, and of the Calorimeter, based on a new custom integrated circuit, the Charge Amplifier with Range Encoding (CARE), and 10-bit ADCs. This design employs commercial embedded CPUs in VME and VXI crates

Keywords

calorimeters; data acquisition; physics computing; position sensitive particle detectors; proportional counters; trigger circuits; 8-bit FADCs; Calorimeter; Charge Amplifier; Drift Chamber; PEP-II; Range Encoding; VME crates; VXI crates; data acquisition system; degradation; detector; efficiency; trigger system; Data acquisition; Degradation; Detectors; Hardware; Instruments; Particle accelerators; Pattern recognition; Physics; Production facilities; Silicon;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.322901

Filename

322901