
%0 Journal Article
%A Battistelli, E. 
%A Zannoni, M. 
%A Boella, G. 
%A Gervasi, M. 
%A Passerini, A. 
%A Sironi, G. 
%A Andreone, D. 
%A Brunetti, L. 
%A Lacquaniti, V. 
%A Maggi, S. 
%A Steni, R. 
%A Natale, E. 
%A Thorpe, J. R. 
%T MASTER: A Triple Heterodyne Receiver for Astronomy in the Millimetre and Sub-millimetre Domain
%J Publications of the Astronomical Society of Australia
%D 2002/12/02
%V 19
%N 3
%P 323-327
%K instrumentation: detectors &#8212; ISM: lines and bands &#8212; cosmology: cosmic microwave background &#8212; submillimetre
%R https://doi.org/10.1071/AS01073
%U https://www.publish.csiro.au/paper/AS01073 
%X A progress report of the MASTER project is presented here. MASTER is a system of three heterodyne receivers based on SIS (superconductor&#8211;insulator&#8211;superconductor) tunnel junction mixers. In our instrument these mixers will allow direct down-conversion from 94, 225, and 345 to 1.5 GHz, the IF where the signal will be detected. This instrument, coupled to a 2&#8211;4 m telescope like the one proposed for the DOME C base in Antarctica and in conjunction with an Acusto Optical Spectrometer, can be used to detect emission lines associated with molecular clouds in the interstellar medium. The current status of a 94 GHz receiver, the prototype of MASTER, will be presented too. The study of the optical coupling between the receiver and MITO telescope in the Italian Alps will also be described. 
