A linear low power remote preamplifier for the ATLAS liquid argon EM calorimeter

Author

Chase, R.L. ; Rescia, S.

Author_Institution

Lab. de l´´Accel. Lineaire, Orsay, France

Volume

1

fYear

1996

fDate

2-9 Nov 1996

Firstpage

659

Abstract

In a previous paper (Nuc. Inst. Meth. vol.A330, p.228, 1993), it was shown that, for shaping times of the order of the transmission line delay, a remote, external preamplifier could perform as well as one connected directly to a liquid argon calorimeter. Here we describe an improved circuit configuration where, by attributing the functions of low noise and high dynamic range to two different transistors, the linearity can be improved and the noise can be decreased while reducing the power dissipation by a factor of three (to about 40 mW). The gain (i.e., the transresistance) and the input impedance can be chosen independently without changing the power supply voltages and power dissipation

Keywords

amplifiers; calorimeters; detector circuits; ionisation chambers; liquid ionisation chambers; liquid scintillation detectors; nuclear electronics; preamplifiers; 40 mW; ATLAS liquid Ar EM calorimeter; circuit configuration; high dynamic range; linear low power remote preamplifier; low noise; power dissipation; power supply voltage; transmission line delay; Argon; Circuit noise; Delay lines; Distributed parameter circuits; Dynamic range; Noise reduction; Noise shaping; Power dissipation; Power transmission lines; Preamplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE

Conference_Location

Anaheim, CA

ISSN

1082-3654

Print_ISBN

0-7803-3534-1

Type

conf

DOI

10.1109/NSSMIC.1996.591085

Filename

591085