Very Heavy Solar Cosmic Rays: Energy Spectrum and Implications for Lunar Erosion
- 26 March 1971
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 171 (3977) , 1240-1242
- https://doi.org/10.1126/science.171.3977.1240
Abstract
The energy spectrum of solar cosmic-ray particles of the iron group has been determined for the first time over the energy range from 1 to 100 million electron volts per nucleon by the use of glass removed from the Surveyor 3 spacecraft. The difference between the observed (energy)-3 spectrum and the limiting spectrum derived previously from tracks in lunar rocks gives an erosion rate of 0 to 2 angstroms per year. High-energy fission of lead, induced by galactic cosmicray protons and alpha particles, has also been observed.Keywords
This publication has 5 references indexed in Scilit:
- Nuclear-Particle-Track Identification in Inorganic SolidsPhysical Review B, 1969
- Identification of Very Heavy Cosmic-Ray Tracks in MeteoritesPhysical Review B, 1968
- Solid-State Track Detectors: Applications to Nuclear Science and GeophysicsAnnual Review of Nuclear Science, 1965
- Cosmic ray exposure ages of tektites by the fission-track techniqueJournal of Geophysical Research, 1965
- Charged Particle Tracks in GlassJournal of Applied Physics, 1963