A 94 GHz differential radiometer for observations of diffuse sky emission

L. Piccirillo

doi:10.1063/1.1142531

A 94 GHz differential radiometer for observations of diffuse sky emission

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Abstract

The design and performance of a portable 94 GHz differential radiometer is discussed. The antenna system is an off-axis paraboloid-hyperboloid combination with a field of view of about 50 arcmin. All mirrors are made of carbon fiber coated with silver. Beam switching is obtained by wobbling sinusoidally the primary (parabolic) mirror. This radiometer was used in Antarctica (Italian Base, Terra Nova Bay, -74 S, +164 E) to make measurements to the diffuse sky emission at mm wavelengths. In future, we are also planning to use the antenna, together with a more sensitive detector, to make measurements of the cosmic background radiation anisotropy (CBR).

Original language	English
Pages (from-to)	1293-1298
Number of pages	5
Journal	Review of Scientific Instruments
Volume	62
Issue number	5
DOIs	https://doi.org/10.1063/1.1142531
Publication status	Published - 1991

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10.1063/1.1142531

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abstract = "The design and performance of a portable 94 GHz differential radiometer is discussed. The antenna system is an off-axis paraboloid-hyperboloid combination with a field of view of about 50 arcmin. All mirrors are made of carbon fiber coated with silver. Beam switching is obtained by wobbling sinusoidally the primary (parabolic) mirror. This radiometer was used in Antarctica (Italian Base, Terra Nova Bay, -74 S, +164 E) to make measurements to the diffuse sky emission at mm wavelengths. In future, we are also planning to use the antenna, together with a more sensitive detector, to make measurements of the cosmic background radiation anisotropy (CBR).",

author = "L. Piccirillo",

year = "1991",

doi = "10.1063/1.1142531",

language = "English",

volume = "62",

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journal = "Review of Scientific Instruments",

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publisher = "American Institute of Physics",

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AB - The design and performance of a portable 94 GHz differential radiometer is discussed. The antenna system is an off-axis paraboloid-hyperboloid combination with a field of view of about 50 arcmin. All mirrors are made of carbon fiber coated with silver. Beam switching is obtained by wobbling sinusoidally the primary (parabolic) mirror. This radiometer was used in Antarctica (Italian Base, Terra Nova Bay, -74 S, +164 E) to make measurements to the diffuse sky emission at mm wavelengths. In future, we are also planning to use the antenna, together with a more sensitive detector, to make measurements of the cosmic background radiation anisotropy (CBR).

U2 - 10.1063/1.1142531

DO - 10.1063/1.1142531

M3 - Article

SN - 1089-7623

VL - 62

SP - 1293

EP - 1298

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 5

ER -

A 94 GHz differential radiometer for observations of diffuse sky emission

Abstract

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