Design, Implementation and Testing of the MAP Radiometers

Details Design, Implementation and Testing of the MAP Radiometers Design, Implementation and Testing of the MAP Radiometers

2003-01-10

arxiv.org/abs/astro-ph/0301164v2

Astronomy and Astrophysics

Astrophysics

Updated with comments; 24 pages with 10 low-resolution figures; version with better figures is at http://lambda.gsfc.nasa.go

Scientific paper

10.1086/346080

The Microwave Anisotropy Probe (MAP) satellite, launched June 30, 2001, will produce full sky maps of the cosmic microwave background radiation in 5 frequency bands spanning 20 - 106 GHz. MAP contains 20 differential radiometers built with High Electron Mobility Transistor (HEMT) amplifiers with passively cooled input stages. The design and test techniques used to evaluate and minimize systematic errors and the pre-launch performance of the radiometers for all five bands are presented.

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