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Detecting galactic cosmic ray transuranium nuclei in olivine crystals from meteorites

  • Proceedings of the 32nd All-Russia Conference on Cosmic Rays (Moscow, July 2012)
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope


Results from the experimental search for and identification of tracks from the superheavy and transuranium nuclei of galactic cosmic rays in pallacite olivine crystals, conducted as part of project OLIMPIA [1], are presented. To date, 170 crystals from Marjalahti and Eagle Station pallacites have been processed and 6800 tracks corresponding to nuclei with charges Z > 55 have been found; 45 of these are from nuclei with charges of 88 < Z < 92 and three super-long ones were produced by nuclei with Z > 105. The charge of one of these nuclei is estimated in the first approximation as Z = 119(+10,−6). Our data confirm the hypothesis of islands of stability for natural trans-Fermi nuclei.

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Correspondence to A. B. Alexandrov.

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Original Russian Text © A.B. Alexandrov, A.V. Bagulya, M.S. Vladimirov, L.A. Goncharova, A.I. Ivliev, G.V. Kalinina, L.L. Kashkarov, N.S. Konovalova, N.M. Okateva, N.G. Polukhina, A.S. Roussetski, N.I. Starkov, 2013, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2013, Vol. 77, No. 11, pp. 1613–1616.

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Alexandrov, A.B., Bagulya, A.V., Vladimirov, M.S. et al. Detecting galactic cosmic ray transuranium nuclei in olivine crystals from meteorites. Bull. Russ. Acad. Sci. Phys. 77, 1343–1346 (2013).

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