Emilio Segrè Visual Archives

More than 30,000 photos of scientists and their work

University of Chicago H10

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University of Chicago H10

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$20.00
Image title: 
Graphite pile at Stagg Field
Credit line: 
University of Chicago, courtesy AIP Emilio Segrè Visual Archives
Description: 

Graphite pile at Stagg Field. "This is the only photograph made during the construction of the first nuclear reactor. The photograph was made in Novermber, 1942 as the 19th layer of graphite was being added. Alternative layers of graphite contained uranium metal and uranium oxide and were spaced by layers of "dead" graphite. Layer 18, almost covered in this photograph, contained uranium. Actual construction was carried on in this manner to the 57th layer which was about one layer beyond the critical or operating dimensions. The roughly spherical form of the structure is shown as is some of the supporting frame work. The reactor was constructed as West Stands, Stagg Field, University of Chicago, and was operated for the first time on December 2, 1942." 

Location: 
Original format: 
4 photographic prints (4 black and white; (1) 5 x 6 inches; (3) 8.5 x 11 inches)
Person(s): 
University of Chicago. Department of Physics
Keywords: 
Category: