An SIS Submillimetre Wave Heterodyne Receiver for Radioastronomy at 368 and 380 GHz using Nb/Al-AlOx/Nb Junctions

Author

Beaudin, G. ; Gheudin, M. ; Deschamps, A. ; Ruffie, Gilles ; Gadea, F. ; Pagani, L. ; Encrenaz, P. ; Febvre, P. ; Feautrier, P. ; George, S. ; Leridon, B. ; Maoli, R. ; Gac, C. ; Gausi, E. ; Germont, A. ; Landry, P. ; Pernot, J.C. ; Lemonnier, M.C. ; Mare

Author_Institution

Observatoire de Paris-Meudon, CNRS, 5 Place Jules Janssen, Meudon, France.

Volume

2

fYear

1994

fDate

5-9 Sept. 1994

Firstpage

1955

Lastpage

1960

Abstract

To prepare the submillimeter space programs in astrophysics, the development of infrared photometers and heterodyne spectrometers has been supported by the french space agency (CNES). The heterodyne instrument includes an SIS receiver with Nb/AlOx/Nb tunnel junctions operating at 4K. An Acousto-Optical Spectrometer (AOS) is used for high resolution (v/Â¿vÂ¿2.106) spectral analysis. This instrument will be employed to simultaneously detect the 02 and the H2O lines in the interstellar medium at 368 and 380 GHz respectively. Observations in this part of the spectrum requires low atmospheric water vapor and oxygen molecule enussion, so that the telescope will fly under a stratospheric balloon borne (PRONAOS).

Keywords

Acoustic signal detection; Astrophysics; Infrared spectra; Instruments; Niobium; Optical receivers; Photometry; Spectral analysis; Spectroscopy; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1994. 24th European

Conference_Location

Cannes, France

Type

conf

DOI

10.1109/EUMA.1994.337508

Filename

4138554