Results of the searches for superheavy nuclei in the Cheleken Penninsula geothermal waters

Autor:	O. D. Maslov, L. P. Chelnokov, R. Gerstenberger, Yu. T. Chuburkov, Yu.S. Korotkin, Yu. Ts. Oganessian, G.N. Flerov, G. M. Ter-Akopian, A. G. Popeko, I. Zvara, V.I. Smirnov
Rok vydání:	1979
Předmět:	Nuclear and High Energy Physics chemistry.chemical_compound Isotope Ion exchange chemistry Radiochemistry Hydroxide Actinide Contamination Alkali metal Ion-exchange resin Spontaneous fission
Zdroj:	Zeitschrift f�r Physik A Atoms and Nuclei. 292:43-48
ISSN:	1434-601X 0340-2193
DOI:	10.1007/bf01434628
Popis:	The water rich in heavy volatile metals form the Cheleken Penninsula hot springs was passed through a column containing 850 kg of anion exchange resin. The spontaneous fission activity (SF) of the samples was measured by neutron multiplicity detectors. The counting rate of spontaneous fission events was 0.5 per day for 9 kg of saturated resin. After 170 kg of the resin had been treated with acid solutions and hydroxides had been precipitated from the eluate with alkali, the counting rate for the precipitate was about five per day. From measurements of theα/SF ratio it is concluded that the activity cannot be traced back to a contamination by actinides, except to a contamination by pure252Cf, which, however, seems to be unlikely. Thus the explanation of the observed effect as being due to the spontaneous fission of a new naturally occurring isotope of a superheavy element is considered to be the most probable one.
Databáze:	OpenAIRE
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