Performance of a fast low noise front-end preamplifier for the MAGIC imaging Cherenkov telescope

Author

Blanch, O. ; Blanchot, G. ; Bosman, M. ; Cavalli-Sforza, M. ; Dosil, M. ; Fernandez, E. ; Llopart, X. ; Lorenz, E. ; Martinez, M. ; Mirzoyan, R. ; Ostankov, A. ; Petry, D. ; Pimpl, W.

Author_Institution

IFAE, Univ. Autonoma de Barcelona, Spain

Volume

1

fYear

1998

fDate

1998

Firstpage

17

Abstract

The observation of high energy cosmic gamma rays with an energy threshold of 15 GeV using the proposed MAGIC ground based air imaging Cherenkov telescope requires the development of new low noise fast preamplifiers for the camera photosensors. The speed and noise performance of a transimpedance preamplifier that resolves the multi photoelectron peaks from a hybrid photomultiplier with a peaking time below 7 ns is presented. The new front-end circuit is designed with RF low noise bipolar transistors and provides fast output pulses that allow for fast trigger settings

Keywords

Cherenkov counters; bipolar transistors; cosmic ray apparatus; nuclear electronics; preamplifiers; 15 GeV; 7 ns; MAGIC; air imaging Cherenkov telescope; camera photosensors; fast trigger settings; front-end circuit; high energy cosmic gamma rays; low noise fast preamplifiers; low noise front-end preamplifier; peaking time; transimpedance preamplifier; Bipolar transistors; Cameras; Circuit noise; Energy resolution; Gamma rays; Optical imaging; Photomultipliers; Preamplifiers; Radio frequency; Telescopes;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1998. Conference Record. 1998 IEEE

Conference_Location

Toronto, Ont.

ISSN

1082-3654

Print_ISBN

0-7803-5021-9

Type

conf

DOI

10.1109/NSSMIC.1998.774800

Filename

774800