New capabilities for the Southern 1.2m mm-Wave Telescope

Rafael Rodríguez; Ricardo Finger; Pablo Vásquez; Ricardo Bustos; Nicolás Reyes; Pablo Zorzi; Leonardo Bronfman; F. Patricio Mena

doi:10.1117/12.925381

24 September 2012 New capabilities for the Southern 1.2m mm-Wave Telescope

Rafael Rodríguez, Ricardo Finger, Pablo Vásquez, Ricardo Bustos, Nicolás Reyes, Pablo Zorzi, Leonardo Bronfman, F. Patricio Mena

Author Affiliations +

Proceedings Volume 8452, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI; 845231 (2012) https://doi.org/10.1117/12.925381
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

In this paper we describe the status of an upgrading program that it is being carried out to modernize the front and back ends of the Southern 1.2-m mm-Wave Telescope to cover eciently the band from 86 to 115 GHz. On the one hand, the new front end will have a sideband-separating conguration to suppress the image band noise. This front end will use one low noise amplier and two Schottky diodes for down conversion. On the other hand, we are developing a modern digital spectrometer, based on the Recongurable Open Architecture Computing Hardware (ROACH), to ease the operation and improve the spectral resolution up to a factor of 4. Moreover, the spectrometer will include IF hybridization capabilities to avoid analog hybrids and, therefore, improve the sideband rejection ratio of the receiver.

Citation Download Citation

Rafael Rodríguez, Ricardo Finger, Pablo Vásquez, Ricardo Bustos, Nicolás Reyes, Pablo Zorzi, Leonardo Bronfman, and F. Patricio Mena "New capabilities for the Southern 1.2m mm-Wave Telescope", Proc. SPIE 8452, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI, 845231 (24 September 2012); https://doi.org/10.1117/12.925381

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