Compact radiometric microwave calibrator | Zendy

D. J. Fixsen | Zendy; Edward J. Wollack | Zendy; A. Kogut | Zendy; M. Limon | Zendy; P. Mirel | Zendy; J. Singal | Zendy; S. M. Fixsen | Zendy

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Compact radiometric microwave calibrator

Author(s) -

D. J. Fixsen,

Edward J. Wollack,

A. Kogut,

M. Limon,

P. Mirel,

J. Singal,

S. M. Fixsen

Publication year - 2006

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.2209960

Subject(s) - calibration , optics , reflection (computer programming) , french horn , wavelength , microwave , base (topology) , materials science , physics , acoustics , computer science , mathematical analysis , mathematics , quantum mechanics , programming language

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 5mK 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 −40dB or 0.01% reflection) over five octaves in frequency.

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