A front-end for an array of μ-bolometers for the study of the neutrino mass

Author

Alessandrello, A. ; Brofferio, C. ; Cremonesi, O. ; Giuliani, A. ; Monfardini, A. ; Nucciotti, A. ; Pavan, M. ; Pessina, G. ; Previtali, E.

Author_Institution

Dipt. di Fisica, Milan Univ., Italy

Volume

1

fYear

1999

fDate

1999

Firstpage

390

Abstract

We present a very low noise front-end solution for the readout of an array composed of 10 μ-bolometers. The system consists of a cold JFET and a room temperature second stage. The optimization of the second stage feedback configuration allowed to minimize the overall noise figure. A very simple current generator having a large output impedance has been developed and is used for biasing the cold JFET

Keywords

bolometers; circuit feedback; junction gate field effect transistors; neutrino detection; neutrino mass; nuclear electronics; readout electronics; μ-bolometers array; 293 K; cold JFET; current generator; microbolometers array; neutrino mass; noise figure; optimization; readout; room temperature second stage; second stage feedback configuration; very low noise front-end solution; Bandwidth; Bolometers; Circuit noise; Frequency; JFET circuits; Neutrino sources; Noise figure; Resistors; Thermal resistance; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1999. Conference Record. 1999 IEEE

Conference_Location

Seattle, WA

ISSN

1082-3654

Print_ISBN

0-7803-5696-9

Type

conf

DOI

10.1109/NSSMIC.1999.842515

Filename

842515