A helium-3 cooled bolometer system for one millimeter continuum observations

Details A helium-3 cooled bolometer system for one millimeter continuum observations A helium-3 cooled bolometer system for one millimeter continuum observations

May 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ijimw...4..299r&link_type=abstract

International Journal of Infrared and Millimeter Waves, Volume 4, Issue 3, pp.299-309

Physics

5

1-Mm Continuum, Helium-3 Bolometer, 5-M Hale Telescope

Scientific paper

A new, 1-mm-continuum, bolometer detector system has been constructed employing internal adsorption pumping of He-3 to reach an operating temperature close to 0.4 K. The system spectral bandwidth is 800 to 1200 μm. Although the system was originally designed to be used on the 5-m Hale telescope, it has also been successfully used on the 4-m Anglo-Australian telescope and on the 10-m dish at Owens Valley, California. At the 5-m Hale telescope, the system has a full width-half maximum (FWHM) beam size of 55t" and an instantaneous noise-equivalent flux density of 6{{Jy} / {{Jy} {sqrt {Hz} }}} {sqrt {Hz} }} in good weather.

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