Nearfield Systems Inc.
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About
August
15 , 2005 - NSI has received
an order from the National Radio Astronomy Observatory (NRAO) for a 3'
x 3' (0.9 m x 0.9 m) tiltable scan system that will measure AUTs up to
940 GHz for the Atacama Large Millimeter Array (ALMA)
project.
The system will be adapted from the NSI-900H-2x2 scanner, which was used by Swales for Measurement of the Earth-Observer-1 Satellite, and includes a 4" (10 cm) Z-stage, Motion Tracking Interferometer (MTI), NSI 2000 Professional Edition and will interface to an Agilent PNA-based RF subsystem.
ALMA will be the premier millimeter and submillimeter telescope in the world. It is under construction in the Altiplano region of northern Chile and, when completed in about 2012, will comprise an array of up to sixty-four 39' (12 m) antennas, with an additional compact array supplied by Japan. ALMA will probe many fundamental questions in astronomy such as the origins of planetary systems and the nature of early galaxies. The ALMA project is an international partnership between Europe, North America and Japan, in cooperation with the Republic of Chile.