[Doc Ewen and the horn, Harvard, 1951]
Ewen and the horn antenna, Harvard, 1951. (Image courtesy of Doc Ewen)



[Doc Ewen at Harvard 60ft dedication, 1956]
Ewen speaks at Harvard 60ft dedication, 1956. (Image courtesy of Doc Ewen)



[Doc Ewen and the horn, Green Bank WV, 2001]
Ewen and the horn antenna, Green Bank WV, 2001. (Image courtesy of Doc Ewen)


NATIONAL RADIO ASTRONOMY OBSERVATORY ARCHIVES

H. I. (Doc) Ewen

"Doc Ewen: The Horn, HI, and other events in U.S. Radio Astronomy" is a Web resource describing H.I. (Doc) Ewen's work from 1948 to the present. Written by Ewen between 2003 and 2005, and illustrated with many photos and diagrams from his collection, the pages describe the detection of the HI line in 1951, early US radio astronomy history, including the building of the Harvard 24- and 60-foot antennas and the founding of NRAO, developments in millimeter and radiometric instrumentation in the 1970s through the 1990s, and Doc Ewen's continuing work in radiometry.

Working with E.M. Purcell at Harvard in 1951, Ewen detected radiation from galactic hydrogen at 1420 Mc/sec. From 1952-1958 he was Co-Director of the Harvard Radio Astronomy Program; during that time he was a member of the committees that recommended establishment by the National Science Foundation of a national facility for radio astronomy, and also recommended Green Bank WV as the best site for what became National Radio Astronomy Observatory. Between 1952 and 1958 he was CEO of both the Ewen Knight and Ewen Dae Corporations, he was Executive VP of Millitech Corporation from 1989-1992, VP Special Projects at Millitech from 1993-2000, President of EK Associates 1992 to present, and Technical Operations Director of Special Projects LLC 2004 to present.

Related Material: See also the Papers of Woodruff T. Sullivan III, which include a 135 minute oral interview with Ewen conducted in 1979.

 

Modified on Tuesday, 29-Jan-2013 10:11:01 EST by Ellen Bouton