skip to main content

Title: Compact radiometric microwave calibrator

The calibration methods for the ARCADE II instrument are described and the accuracy estimated. The Steelcast coated aluminum cones which comprise the calibrator have a low reflection while maintaining 94% of the absorber volume within 5 mK of the base temperature (modeled). The calibrator demonstrates an absorber with the active part less than one wavelength thick and only marginally larger than the mouth of the largest horn and yet black (less than -40 dB or 0.01% reflection) over five octaves in frequency.
Authors:
; ; ; ; ; ;  [1] ;  [2] ;  [2] ;  [2] ;  [2]
  1. SSAI Goddard Spaceflight Center, Greenbelt, Maryland 20771 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20853300
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 77; Journal Issue: 6; Other Information: DOI: 10.1063/1.2209960; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCURACY; ALUMINIUM; ANTENNAS; CALIBRATION; CONES; MICROWAVE RADIATION; RADIOMETERS; REFLECTION; WAVELENGTHS