Radiation damage and structure recorded at high resolution in grains from fine fractions of Luna 16 surface material

Details Radiation damage and structure recorded at high resolution in grains from fine fractions of Luna 16 surface material Radiation damage and structure recorded at high resolution in grains from fine fractions of Luna 16 surface material

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974lssf.nasa..388d&link_type=abstract

"In its Lunar Soil from the Sea of Fertility (NASA-TT-F-15881) p 388-399 (SEE N75-11814 02-91) Transl. into ENGLISH from the bo

Computer Science

Granular Materials, Lunar Soil, Particle Tracks, Radiation Damage, Crystal Lattices, Lunar Evolution, Lunar Maria, Lunar Surface, Lunik 16 Lunar Probe, Microstructure

Scientific paper

Samples returned to earth by Luna 16, were studied with a high voltage electron microscope for ultramicroscopic features. The following amazing features were noted in particles of surface material returned in all the lunar trips: A very high density of tracks of nuclear particles, ultrathin amorphous shells, highly rounded forms, and amazingly good ordering of crystal lattice. These features were used along with calibration experiments in solving the following problems: (1) determining the energy spectrum and chemical abundances of the very heavy nuclei in the solar wind and in the solar cosmic rays; (2) studying the past activity of the sun; (3) obtaining data on lunar dynamic processes affecting dust particles; (4) analyzing composite effects caused by penetration of solar wind into the lunar surface material; and (5) establishing the existence of the ancient lunar atmosphere and magnetic field.

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