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File:"60-inch cyclotron at the University of California Lawrence Radiation Laboratory, Berkeley" - NARA - 558594.tif

Original file ‎(3,000 × 2,409 pixels, file size: 6.89 MB, MIME type: image/tiff)

Summary

"60-inch cyclotron at the University of California Lawrence Radiation Laboratory, Berkeley"   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Author
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Record creator
InfoField
Department of Energy. Office of Public Affairs. (10/01/1977 - 1985?)
Title
"60-inch cyclotron at the University of California Lawrence Radiation Laboratory, Berkeley"
Description
  • Scope and content: "'Photograph shows the 60-inch cyclotron at the University of California Lawrence Radiation Laboratory, Berkeley, in August, 1939. The machine was the most powerful atom-smasher in the world at the time. It had started operating early in the year. During the period of the photograph Dr. Edwin M. McMillan was doing the work which led to the discovery of neptunium (element 93) a year later. The instrument was used later by Dr. Glenn T. Seaborg and his colleagues for the discovery of element 94 (plutonium) early in 1941. Subsequently, other transuranium elements were discovered with the machine, as well as many radioisotopes, including carbon-14. For their work, Drs. Seaborg and McMillan shared the Nobel Prize in 1951. The machine was used for the "long bombardments" which produced the first weighable and visible quantities of plutonium, which was used at Chicago by Seaborg and his colleagues to work out the method for separating plutonium on an industrial scale at the Hanford, Washington, plutonium pro...'"
Date 1939
date QS:P571,+1939-00-00T00:00:00Z/9
institution QS:P195,Q38945047
Still Picture Records Section, Special Media Archives Services Division (NWCS-S)
Record ID
InfoField
This media is available in the holdings of the National Archives and Records Administration, cataloged under the National Archives Identifier (NAID) 558594.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

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  • Record group: Record Group 434: General Records of the Department of Energy, 1915 - 2007 (National Archives Identifier: 722)
  • Series: Activities and Personnel of the Department of Energy and Predecessor Agencies, 1955 - 1979 (National Archives Identifier: 558589)
  • NAIL Control Number: NWDNS-434-RF-25(8)
  • 434-RF-25(8)
Source U.S. National Archives and Records Administration
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Licensing

Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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image/tiff

checksum

60bf9b6e816d767577be755bb6b082393f186d8f

determination method: SHA-1

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original catalog description

"'Photograph shows the 60-inch cyclotron at the University of California Lawrence Radiation Laboratory, Berkeley, in August, 1939. The machine was the most powerful atom-smasher in the world at the time. It had started operating early in the year. During the period of the photograph Dr. Edwin M. McMillan was doing the work which led to the discovery of neptunium (element 93) a year later. The instrument was used later by Dr. Glenn T. Seaborg and his colleagues for the discovery of element 94 (plutonium) early in 1941. Subsequently, other transuranium elements were discovered with the machine, as well as many radioisotopes, including carbon-14. For their work, Drs. Seaborg and McMillan shared the Nobel Prize in 1951. The machine was used for the "long bombardments" which produced the first weighable and visible quantities of plutonium, which was used at Chicago by Seaborg and his colleagues to work out the method for separating plutonium on an industrial scale at the Hanford, Washington, plutonium pro...'" (English)

determination method: determined by GLAM institution and stated at its website
Reference
reference URL: https://dp.la/item/b2f5ba8a176b46279aa3ed1dab37278e
publisher: Digital Public Library of America
retrieved: 17 July 2023

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Date/TimeThumbnailDimensionsUserComment
current19:54, 23 September 2011Thumbnail for version as of 19:54, 23 September 20113,000 × 2,409 (6.89 MB)US National Archives bot == {{int:filedesc}} == {{NARA-image-full |Title="60-inch cyclotron at the University of California Lawrence Radiation Laboratory, Berkeley" |Scope and content="'Photograph shows the 60-inch cyclotron at the University of California Lawrence Radiation Lab
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