Performance of the electronics for the liquid argon calorimeter system of the SLC large detector

Author

Vella, E. ; Abt, I. ; Haller, G.M. ; Honma, A.

Author_Institution

Washington Univ., Seattle, WA, USA

Volume

36

Issue

1

fYear

1989

fDate

2/1/1989 12:00:00 AM

Firstpage

822

Lastpage

825

Abstract

Results of performance tests on electronics for the liquid argon calorimeter (LAC) for the SLD (Stanford Linear Collider Large Detector) experiment are presented. The behavior of a subunit called a tophat, which processes 720 detector signals is described. The electronics consists of charge-sensitive preamplifiers, analog memories, A/D (analog/digital) converters, and associated control and readout circuitry. An internal charge-injection system is used to calibrate the overall response of the devices. Linearity is better than 1% for 0-28-pC charge at the input of the amplifiers. Noise (expressed as equivalent input charge) is less than 3000 electrons at a shaping time of 4 μs, with a slope of 2600 e^-/nF. Crosstalk to adjacent channels is less than 0.5%. The power consumption at a duty cycle of 13% is 61 W

Keywords

analogue-digital conversion; argon; calorimeters; nuclear electronics; preamplifiers; A/D converters; LAC; SLC large detector; analog memories; charge-sensitive preamplifiers; control circuitry; crosstalk; electronics; equivalent input charge; internal charge-injection system; liquid Ar calorimeter; noise; power consumption; readout circuitry; shaping time; tophat; Analog memory; Argon; Crosstalk; Detectors; Electronic equipment testing; Los Angeles Council; Preamplifiers; Signal detection; Signal processing; Superluminescent diodes;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.34558

Filename

34558