[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 2a & 2b

[Field test on Sugarloaf Mountain]

Looking across Pioneer Valley toward the Berkshires. Ground (field) test program: simulation of airborne imaging capabilities. Aircraft motion is simulated by mounting the camera on an az table with CT scanning in elevation. This is called "pan-scan". Aircraft motion can be simulated by mounting the camera on an el table with CT scanning in azimuth. This is called "el-nod". Credit: Photo courtesy of Doc Ewen.

[Connecticut River Valley]

"Killer" Kocinski with ROSCAM on Sugarloaf. Sugarloaf Mountain (620 feet high), is a state park located in South Deerfield MA, with a view of the Connecticut River Valley, University of Massachusetts, Amherst College, and South Hampton College. Mt. Holyoke is just over the Hadley Range to the southeast, and Smith College to the southwest. Westover AFB is just beyond Mt. Holyoke at exits 5 and 6 on the Massachusetts Turnpike. The river flows south, down the middle of the valley. Credit: Photo courtesy of Doc Ewen.

ROSCAM slide 3
Modified on Sunday, 12-Jun-2005 08:39:32 EDT by Ellen Bouton