Measurement of the intensity of the cosmic background radiation at 3. 0 cm

Technical Report · Sun Jan 01 04:00:00 EST 1984

DOI:https://doi.org/10.2172/5210635· OSTI ID:5210635

Friedman, S D

The intensity of the cosmic background radiation (CBR) has been measured at a wavelength of 3.0 cm as part of a program to measure th Rayleigh-Jeans spectrum of the CBR at five wavelengths between 0.33 cm and 12 cm. The instrument used is a dual-antenna Dicke-switched radiometer with a double-sideband noise temperature of 490 K and a sensitivity of 46 mK/Hz/sup 1/2/. The entire radiometer is mounted on bearings. The atmospheric emission was measured by rotating the radiometer, and thus directing one antenna to zenith angles of +- 30/sup 0/ and +- 40/sup 0/. 61 references, 24 figures, 18 tables.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5210635
• Report Number(s): LBL-17279; ON: DE84008246
• Country of Publication: United States
• Language: English

Related Subjects

640101* -- Astrophysics & Cosmology-- Cosmic Radiation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANGULAR DISTRIBUTION
BACKGROUND RADIATION
COSMIC RADIATION
DATA
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ENERGY SPECTRA
EXPERIMENTAL DATA
INFORMATION
IONIZING RADIATIONS
MEASURING METHODS
MICROWAVE RADIATION
NUMERICAL DATA
RADIATIONS
SPECTRA