Scaler
date: label: Date made
content: ca. 1945
notes: label: Description
content: Scalers were used to count pulses from radiation detectors. This type was developed by John Alexan-der Simpson, Jr., a physicist on the staff of the Met Lab at the University of Chicago during World War II. Inscriptions on this example read "Proportional Alpha Counter / Model 1C" and "Metallurgical Lab. / 37674" and "USA 3683 ANL" and "Made by / The Hallicrafters Co. / Chicago U.S.A." Herbert M. Clark, a professor of chemistry at the Rensselaer Polytechnic Institute, obtained it from the A.E.C. in 1960.
label: Description
content: Ref: John A. Simpson, Jr., Manual for the Proportional Alpha Counter (Model 1-C) (Published for the Atomic Energy Commission, 1945).
label: Description
content: John A. Simpson, Jr., "A Precision Alpha-Proportional Counter," Review of Scientific Instruments 18 (1947): 884-893.
label: Location
content: Currently not on view
place: label: place made
content: United States: Illinois, Chicago
setName: label: See more items in
content: Medicine and Science: Modern Physics
creditLine: label: Credit Line
content: Rensselaer Polytechnic Institute. Department of Chemistry
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1994.0125.06
label: accession number
content: 1994.0125
label: catalog number
content: 1994.0125.06
objectType: label: Object Name
content: Decade scaler
physicalDescription: label: Measurements
content: overall: 19 1/2 in x 21 in x 16 in; 49.53 cm x 53.34 cm x 40.64 cm