Published 1982 | Version v1
Journal article

Traces of heavy and superheavy cosmic nuclei in olivins of extraterrestial origin

  • 1. Bylgarska Akademiya na Naukite, Sofia. Inst. za Yadrena Izsledvaniya i Yadrena Energetika
  • 2. Joint Inst. for Nuclear Research, Dubna (USSR)

Description

The paths of traces of WH nuclei from cosmic rays have been measured in olivines from the meteorites Maryalakhti, Eagle Stein, Liposki khutor with radiation ages 175, 45 and 220 million years respectively. 3 cm3 olivines of these meteorites have been examined and more than 500 traces of nuclei with Z(>=)90 have been found measured including 3 traces 1.5-1.8 times longer than the traces created by the uranium and thorium nuclei. These traces may be left by nuclei with Z(>=)110. The crystals were chosen from localizations situated at 2-7 cm, 8-9 cm and 10-12 cm from the outside atmospheric surface of the meteorite. The abundancy of the Z(>=)50 nuclei in gigantic cosmic rays, averaged for a period of (<=) 200 millions of years has been compared with the distribution of the elements in the substances from the Solar system. A new value has been found for the hypothetical superheavy elements Z(>=)110 in galactic cosmic rays. It is 1.4 x 10 -9 from that of the iron group nuclei. (authors)

Additional details

Additional titles

Original title (Russian)
Следы тяжелых и сверхтяжелых космических ядер в оливинах внеземного происхождения

Publishing Information

Journal Title
Bulg. J. Phys.
Journal Volume
9
Journal Issue
3
Series
Bulg. J. Phys.
Journal Page Range
246-259
ISSN
0323-9217