A 380 GHz SIS heterodyne spectrometer for "pronaos" (balloon borne experiment for submillfineter radioastronomy)

G. Beaudin

doi:10.1117/12.2298739

30 November 2017 A 380 GHz SIS heterodyne spectrometer for "pronaos" (balloon borne experiment for submillfineter radioastronomy)

G. Beaudin

Author Affiliations +

Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 21048J (2017) https://doi.org/10.1117/12.2298739
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom

Abstract

To prepare the space programs on astrophysics, the development of a balloon-borne observatory (PRONAOS) ,including a 2 metre telescope associated with a submillimetre heterodyne spectrometer for radioastronomy,has been supported by the french space agency (CNES).The receiver includes a SIS mixer using Nb/AlOx/Nb tunnel junctions operating at 4K, a 6 GHz IF low-noisecooled preamplifier, a LO quasi-opticaly injected with a phase locked Gunn oscillator and two cascadedfrequency multipliers. Noise temperature as low as 300 K has been obtained ; less than 200 K is expected. AnAcousto-Optical Spectrometer (AOS) is used for high resolution (vidv--.106) spectral analysis. This instrument willbe used to simultaneously detect the 368 GHz 02 and the 380 GHz H2O lines in the interstellar medium.Observations in this part of the spectrum requires low atmospheric water vapor and oxygen molecule emission,so that the telescope will fly under a 1 000 000m3 balloon at an altitude of ,---- 37 km.

Citation Download Citation

G. Beaudin "A 380 GHz SIS heterodyne spectrometer for "pronaos" (balloon borne experiment for submillfineter radioastronomy)", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21048J (30 November 2017); https://doi.org/10.1117/12.2298739

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available