2014 Volume 83 Issue 8 Pages 644-650
The Atacama Large Millimeter/submillimeter Array (ALMA) is the ultimate ground-based radio telescope. It is constructed in the Atacama Desert of Chile in South America, 5,000 m above sea level. ALMA is a partnership among East Asia, Europe, and North America. This paper briefly introduces the telescope, and describes the development of ALMA Band 10 (0.78-0.95 THz frequency band) receivers, which have the best performance in the world, and which are being installed in the total of 66 parabola antennas that compose ALMA. Some successful results related to the Band 10 receivers are also shown.