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

Introduction

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

Bibliography

Permissions


[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 7a & 7b

Cargo planes at Westover Airport, 1600 feet at 60 mph

[Cargo planes at Westover Airport]

Visual, with 37 degree FOV cross track. Credit: Photo courtesy of Doc Ewen.

[Cargo planes at Westover Airport]

Passive 95 GHz image with 60 degree FOV cross track. Credit: Photo courtesy of Doc Ewen.

Modified on Sunday, 12-Jun-2005 12:59:33 EDT by Ellen Bouton