The Arcminute Microkelvin Imager

Abstract

The Arcminute Microkelvin Imager is a pair of interferometer arrays operating with sixfrequency channels spanning 13.9–18.2 GHz, for observations on angular scales of 30 arcsec–10 arcmin and for declinations greater than -15?; the Small Array has a sensitivity of30 mJy s-1/2 and the Large Array has a sensitivity of 3mJy s-1/2. The telescope is aimedprincipally at Sunyaev–Zel’dovich imaging of clusters of galaxies. We discuss the design ofthe telescope and describe and explain its electronic and mechanical systems.