Physics
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991zphya.338..435p&link_type=abstract
Zeitschrift für Physik A Hadrons and Nuclei, Volume 338, Issue 4, pp.435-439
Physics
2
27.10+W, 29.90+Z
Scientific paper
The results are presented of calibrating the sensitivity of olivine crystals from meteorites by the238U nuclei produced at the Bevalac accelerator. The comparative studies of the spectra of the etchable track lengths due to the238U nuclei and to “fossil” tracks in these olivines have shown that the group of the 210 μm “fossil” tracks observed in 1980 at the LNR, JINR is due to the galactic cosmic-ray nuclei of the Th-U group. As regards the origin of the 340 360 μm group of “fossil” tracks which were considered in [2] to be candidates for superheavy nuclei in cosmic rays the presence of the track with a length of up to 360 μm in the calibrating238U track length spectra indicates that the above interpretation has to be questioned. The possible ways of the unambiguous identification of the group of the abnormally long “fossil” tracks are discussed.
Crawford Henry J.
Perelygin V. P.
Stetsenko S. G.
Symons T. J. M.
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