[Doc Ewen looks into the horn antenna, 1950]
Image courtesy of Doc Ewen


Harvard Cyclotron: 1948-1951

Detection of HI Line: 1951

Harvard 24ft and 60ft and NRAO founding: 1952-1956

1950s and 1960s: Two Roads that Crossed

Microwave & Millimeter Wave Applications in the 1970s and 1980s

Mm Wave Radiometry in the 1990s

May 2001 visit to NRAO Green Bank



[Doc Ewen and horn antenna, 2001]
Image courtesy of Doc Ewen

Doc Ewen: The Horn, HI, and Other Events in US Radio Astronomy

by Doc Ewen, © 2003

Millimeter Wave Radiometry in the 1990s: ROSCAM slides 3a & 3b

[ROSCAM on helicopter nose mount]

ROSCAM on the Tyler nose mount of a Jet Ranger helicopter. Credit: Photo courtesy of Doc Ewen.

[Helicopter take-off]

Air Force program manager Roger Smith taking ROSCAM on a picture tour of the Pioneer Valley. Credit: Photo courtesy of Doc Ewen.

ROSCAM slide 4
Modified on Sunday, 12-Jun-2005 08:48:25 EDT by Ellen Bouton