The Neutron-Deficient Yttrium Isotopes Y$sup 82$, Y$sup 83$, and Y$sup 8$$Sup 4$

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Divergences in values of the half life of Y/sup 85/ have been resolved by discovery of a new sup 85/ isomeric state, and the half lives of Y/sup 84/ , Y/sup 83/, and Y/sup 82/ have been evaluated. Powdered arsenic metal targets were bombarded in the Berkeley heavy-ion linear accelerator with carbon ions. Determination by direct decay gives a half life of 39 plus or minus 1 min for Y/ sup 84/. Timed chemical separation values of 9 plus or minus 3 min and 8 plus or minus 2 min were obtained for Y/sup 84/ and Y/sup 83/, respectively. Gamma … continued below

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12 pages

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Maxia, V.; Kelly, W. H. & Horen, D. J. December 1, 1961.

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Divergences in values of the half life of Y/sup 85/ have been resolved by discovery of a new sup 85/ isomeric state, and the half lives of Y/sup 84/ , Y/sup 83/, and Y/sup 82/ have been evaluated. Powdered arsenic metal targets were bombarded in the Berkeley heavy-ion linear accelerator with carbon ions. Determination by direct decay gives a half life of 39 plus or minus 1 min for Y/ sup 84/. Timed chemical separation values of 9 plus or minus 3 min and 8 plus or minus 2 min were obtained for Y/sup 84/ and Y/sup 83/, respectively. Gamma spectra of Y/sup 84/ and Sr/sup 83/ are shown. (D.C.W.)

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12 pages

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Other Information: Orig. Receipt Date: 31-DEC-63

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  • Report No.: UCRL-9995
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 4719429
  • Archival Resource Key: ark:/67531/metadc1025305

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  • December 1, 1961

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  • Oct. 18, 2017, 7:39 a.m.

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  • Nov. 22, 2024, 10:01 p.m.

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Maxia, V.; Kelly, W. H. & Horen, D. J. The Neutron-Deficient Yttrium Isotopes Y$sup 82$, Y$sup 83$, and Y$sup 8$$Sup 4$, report, December 1, 1961; [California]. (https://digital.library.unt.edu/ark:/67531/metadc1025305/: accessed September 13, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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