Demonstration of the TIRGO compact 800- to 900-GHz heterodyne receiver on UKIRT

Ellison, Brian N.; Matheson, David N.; Little, Leslie T.; White, Glenn J.; Price, Mark C.; Davies, Steven R.; Jackson, Brian D. and Natele, Vincenzo (2004). Demonstration of the TIRGO compact 800- to 900-GHz heterodyne receiver on UKIRT. In: Proceedings of SPIE, pp. 705–712.

DOI: https://doi.org/10.1117/12.553234

Abstract

A compact sub-millimetre wavelength Nb superconducting tunnel junction receiver (TIRGO) has been installed on the UKIRT facility, Hawaii. The receiver, used in combination with an acousto-optic spectrometer, exhibited excellent noise performance, achieving a best noise equivalent temperature of 280K (DSB) at 808GHz. Despite unfavourable observing conditions, spectral observations of a variety of astronomical sources were made that effectively verified the sensitivity and usefulness of the instrument for astronomical research. The design, construction and performance of the receiver system are described and some of the astronomical data acquired during the observation period briefly presented.

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