Detecting galactic cosmic ray transuranium nuclei in olivine crystals from meteorites |
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| Authors: | 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 |
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| Institution: | 1. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia
2. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow, 119991, Russia
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| Abstract: | 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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