Proceedings of the Particle Physics and Early Universe Conference (PPEUC).
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Primordial Experiments II

Michael E. Jones

Mullard Radio Astronomy Observatory, Cavendish Laboratory,
Madingley Road, Cambridge CB3 0HE, U.K.


CMB experiments using amplifiers cover the full range of angular scales of interest, from to , and provide constraints on the CMB power spectrum with similar sensitivity to bolometric measurements. Total-power measurements have been made possible by careful experimental design, including sophisticated scanning strategies and optical arrangements and use of exceptionally dry sites. Interferometric measurements offer suppression of several systematic effects and have been made on smaller angular scales and from less extreme sites; several new experiments are being constructed covering the expected angular scales of the Doppler peaks. Measurements on smaller scales at centimetre wavelengths are prone to contamination from extragalactic sources, and higher-resolution data are necessary to cope with this.

PPEUC Proceedings
Fri Jul 4 11:20:15 BST 1997