Abstract
No evidence for spontaneous fission decay (and the implied presence of superheavy nuclides) has been found in a several kilogram precipitate gathered at the Atlantis-II site in the Red Sea. The sample was investigated with a neutron multiplicity counternon-destructively so that no chemical losses should have been sustained. Upper limits have been determined for possible superheavy element concentrations in the sample.
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Research sponsored in part by the Division of Nuclear Sciences, Office of Basic Energy Sciences, U.S. Department of Energy, under contract (W-7405-eng-26) with Union Carbide Corporation
The PREUSSAG A.G. (Hannover, FRG) kindly supplied us with the “Atlantis II” sample. They obtained the material from the SS Valdivia on an expedition in 1972. Financial support of the BMFT, Bonn, is kindly appreciated. We wish to acknowledge the efforts of J. Emery and J. Northcutt of the Analytical Chemistry Division of ORNL for determining the uranium content of our sample. We want to thank L. Landau of the same division for carrying out the spectroscopic analyses shown in Table 1. We also wish to express our appreciation to R.L. Hahn for his encouragement and for his role in facilitating these measurements.
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Halperin, J., Stoughton, R.W., Ketelle, B.H. et al. Search for spontaneous fission emitters in Atlantis II (Part I). Z Physik A 300, 281–284 (1981). https://doi.org/10.1007/BF01419857
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DOI: https://doi.org/10.1007/BF01419857