[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: MAPS slide 5

[Comparison of MAPS and video images]

95 GHz MAPS passive millimeter wave images are on the left, video images on the right. Top row: Coast Guard cutter against the shoreline. Middle row: Swimmers in the water. Bottom row: Solar specular reflection from the water. Images from Florida test range. Credit: Photos courtesy of Doc Ewen.

MAPS slide 6
Modified on Saturday, 04-Jun-2005 21:29:06 EDT by Ellen Bouton