A Mechanism for Producing Magnetic Remanence in Meteorites and Lunar Samples by Cosmic-Ray Exposure
- 28 May 1971
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 172 (3986) , 939-941
- https://doi.org/10.1126/science.172.3986.939
Abstract
An irradiation of 3 x 1017 neutrons per square centimeter in a reactor core produced an increase in the coercive force of iron and kamacite of 16 to 21 percent. The alternating-current demagnetization spectrum of saturation isothermal remanence was shifted toward higher coercive forces. Similar neutron fluences produced by cosmic-ray exposure may be capable of converting soft isothermal remanence in meteorites and lunar samples to remanence with a higher coercive force.Keywords
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