The effects of radiation on ferrites

Authors :: J. S. Mills
S. I. Taimuty
Source :: IEEE Transactions on Communication and Electronics. 82:305-308
Publication Year :: 1963
Publisher :: Institute of Electrical and Electronics Engineers (IEEE), 1963.
Abstract: The effects of reactor exposures in the range 1016?1018 fast neutrons per cm2 (square centimeter) on the magnetic properties of 16 polycrystalline ferrites and garnets are presented. Measured properties included coercive force, remanence, saturation induction, complex permeability, and FMR (ferromagnetic resonance) linewidth. It was found that the hysteresis properties and FMR linewidth were slightly affected by exposures of 1018 neutrons per cm2. Complex permeability was affected by exposures as small as 1016 neutrons per cm2. All of the observed changes were small.