Physics
Scientific paper
Oct 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978e%26psl..41..139b&link_type=abstract
Earth and Planetary Science Letters, vol. 41, no. 2, Oct. 1978, p. 139-142.
Physics
Electromagnetic Absorption, Lunar Rocks, Magnetic Permeability, Apollo 11 Flight, Energy Dissipation, Losses, Magnetic Fields, Moon, Samples, Lunar, Breccias, Absorption, Soils, 10084, 10065, Apollo 11 Mission, Magnetic Properties, Iron, Particles, Density, Magnetic Fields
Scientific paper
Physical constants which define the complex magnetic susceptibility of lunar materials in the frequency domain can be easily determined at frequencies in the vicinity of 1 MHz using a very simple electromagnetic absorption technique. This particular application of absorption measurements derives from the interrelation of the real and imaginary components of the susceptibility of lunar material, and the direct proportionality of the latter component to the power absorbed by the sample when it is exposed to an alternating magnetic field. The results obtained confirm the validity of the theoretical model of viscous magnetization in lunar material put forward by Hanneken et al. (1976) and agree very well with data obtained by Stephenson (1971) using an entirely different measurement technique.
Becker Andrew
Collett L. S.
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