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

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"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)
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TuntematonUnknown author tai ei määritelty
Record creator
InfoField
Department of Energy. Office of Public Affairs. (10/01/1977 - 1985?)
Otsikko
"60-inch cyclotron at the University of California Lawrence Radiation Laboratory, Berkeley"
Kuvaus
  • 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...'"
Päiväys 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)
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Public domain
Tämä teos ei saa tekijänoikeuden suojaa, koska tämä on Yhdysvaltain liittovaltion viranomaisen tekemä teos. Yhdysvaltain tekijänoikeuslain 105 § mukaisesti tällaisiin teoksiin ei ole tekijänoikeutta.

Tämä koskee vain liittovaltion viranomaisen tekemiä teoksia. Tämä ei koske osavaltion, territorion, piirikunnan, kunnan tai minkään muun pienemmän hallinnollisen alueen viranomaisten tekemiä teoksia. Yhdysvaltain postipalvelu pidättää oikeudet vuoden 1977 jälkeen julkaistuihin postimerkkeihin ([1]), joten tätä mallinetta ei voi käyttää myöskään niille.

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"60-inch cyclotron at the University of California Lawrence Radiation Laboratory, Berkeley" (englanti)

"'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...'" (englanti)

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Päiväystä napsauttamalla näet, millainen tiedosto oli kyseisellä hetkellä.

PäiväysPienoiskuvaKokoKäyttäjäKommentti
nykyinen23. syyskuuta 2011 kello 22.54Pienoiskuva 23. syyskuuta 2011 kello 22.54 tallennetusta versiosta3 000 × 2 409 (6,89 MiB)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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