Search for the Tracks of Heavy and Superheavy Cosmic Ray Nuclei in Olivines from Meteorites

摘要

The results of investigating the tracks of cosmic nuclei with Z >= 50 in olivine crystals from meteorites are presented. The obtained spectrum of track lengths for the Z >= 50 nuclei exhibits two pronounced groups of tracks: 190-230 mu m tracks, attributed to nuclei ranging from Th to U, and abnormally long 310-360 mu m tracks. The hypothesis that the nuclei of superheavy elements with Z >= 110 may be present in cosmic rays is discussed. (Atomindex citation 17:000912)