The X-Ray Spectra of the Last-Row Elements

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Description

Abstract: X-ray energy level diagrams as given in the literature are tabulated for radium, thorium and uranium. A level scheme for protoactinium is derived from the published data. After a brief review of the use of X-ray data in studying outer electronic structure, it is pointed out that differences in the X-ray spectra should exist depending on whether the outer electrons are in f or d orbitals. The observed separation of the OI and OII levels in thorium and uranium indicated that the f levels lie lower than the d. This hypothesis also provides a reasonable explanation for the observed … continued below

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23 pages ; illustrations.

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Russell, H., Jr. October 22, 1946.

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  • Main Title: The X-Ray Spectra of the Last-Row Elements
  • Series Title: Atomic Energy Commission Reports
  • Series Title: MDDC (Series)
  • Added Title: Atomic Energy Commission Report MDDC-406
  • Added Title: Manhattan District Declassification Document MDDC 406

Description

Abstract: X-ray energy level diagrams as given in the literature are tabulated for radium, thorium and uranium. A level scheme for protoactinium is derived from the published data. After a brief review of the use of X-ray data in studying outer electronic structure, it is pointed out that differences in the X-ray spectra should exist depending on whether the outer electrons are in f or d orbitals. The observed separation of the OI and OII levels in thorium and uranium indicated that the f levels lie lower than the d. This hypothesis also provides a reasonable explanation for the observed differences between the MIV and MV absorption edges and MIV and MV levels calculated from the emission spectra and the LIII edge.

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23 pages ; illustrations.

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  • Report No.: MDDC-406
  • SuDoc Number: Y 3.At 7:22/MDDC-406
  • Accession or Local Control No: metadc1201790
  • Archival Resource Key: ark:/67531/metadc1201790

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Technical Report Archive and Image Library

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  • October 22, 1946

Added to The UNT Digital Library

  • Feb. 9, 2020, 2:12 p.m.

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  • April 1, 2020, 4:04 p.m.

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Russell, H., Jr. The X-Ray Spectra of the Last-Row Elements, report, October 22, 1946; Oak Ridge, Tennessee.. (https://digital.library.unt.edu/ark:/67531/metadc1201790/: accessed May 29, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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