[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

Slide presentation: Millimeter-Wave Radiometry in the 1990s

Section 3: ROSCAM 95GHz Millimeter Wave Radiometric Imaging Camera

ROSCAM is an airborne 95 GHz imager, based on a unique antenna designed by Millitech for an automobile collision avoidance radar. The system was named ROSCAM by Eglin, based on their goal to generate a radiometric image in less than five seconds. The Radiometric One Second Camera (ROSCAM) exceeded that requirement by a factor of five. When we asked about the significance of the five second image time, We were told that it was the retention time of a congressman. Roger Smith was the very capable Program Manager of the ROSCAM. He was also appointed the first Chairman of the SPIE session on Millimeter Wave Imaging. We lost a great team member when Roger decided to pursue Fuse Technology.

Click on the thumbnails for larger photos and fuller explanations.

Slide 1: ROSCAM components.
Slide 2: Ground test - airborne simulation.
Slide 3: Take-off at Northampton MA.
Slide 4: Connecticut Valley flight path.
Slide 5: Bridges crossing the Connecticut River.
Slide 6: Holyoke and its canals.
Slide 7: Cargo planes at Westover Airport.

Modified on Tuesday, 14-Jun-2005 08:50:54 EDT by Ellen Bouton