Abstract
In this paper we describe an attempt to isolate superheavy elements from Atlantis II hot brine deposits. Volatile, sulfidic elements (Cd, Pb) were isolated and investigated for spontaneous fission events with a mica-plastic solid state track detector sandwich. During nearly two years exposure time no spontaneous fission activity was observed. The upper limit for the concentration of superheavy elements (following this chemistry) in the Atlantis II-material is found to be 1.4·10−14g/g. This limit is more than one order of magnitude lower than the concentration of a spontaneous fission activity in material from the Cheleken hot brine, as observed by Flerov and coworkers.
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One of us (A.M.) would like to acknowledge the kind hospitality of Prof. Bock and the GSI-Laboratory (Darmstadt). Another of us (R.B.) wants to thank Prof. Flerov and his coworkers for friendly and stimulating discussions in Dubna. The PREUSSAG AG, Hannover, kindly supplied us with the Atlantis II brine and deposits. They obtained the material from the SS Valdivia on an expedition in 1971/72.
Financial support by the BMFT, Bonn, is kindly appreciated.
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Lund, T., Brandt, R., Molzahn, D. et al. Search for spontaneous fission emitters in Atlantis II (Part II). Z Physik A 300, 285–288 (1981). https://doi.org/10.1007/BF01419858
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DOI: https://doi.org/10.1007/BF01419858