A progress report on using bolometers cooled by adiabatic demagnetization refrigeration

Details A progress report on using bolometers cooled by adiabatic demagnetization refrigeration A progress report on using bolometers cooled by adiabatic demagnetization refrigeration

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989tidt.work...45l&link_type=abstract

In its Proceedings of the Third Infrared Detector Technology Workshop p 45-57 (SEE N90-21313 14-35)

Astronomy and Astrophysics

Astronomy

Adiabatic Demagnetization Cooling, Bolometers, Refrigerating, Astronomy, Continuous Spectra, Durability, Estimating, Photons, Progress, Selection, Sensitivity, Telescopes

Scientific paper

For sensitive detection of astronomical continuum radiation in the 200 micron to 3 mm wavelength range, bolometers are presently the detectors of choice. In order to approach the limits imposed by photon noise in a cryogenically cooled telescope in space, bolometers must be operated at temperatures near 0.1 K. Researchers report progress in building and using bolometers that operate at these temperatures. The most sensitive bolometer had an estimated noise equivalent power (NEP) of 7 x 10(exp 017) W Hz(exp -1/2). Researchers also briefly discuss the durability of paramagnetic salts used to cool the bolometers.

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