Dispersion of Projectile and Target Debris Upon Penetration of Thin Targets

Details Dispersion of Projectile and Target Debris Upon Penetration of Thin Targets Dispersion of Projectile and Target Debris Upon Penetration of Thin Targets

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27..475g&link_type=abstract

Lunar and Planetary Science, volume 27, page 475

Computer Science

Chemistry, Cosmic Dust, Fragments: Ejecta, Residue, Thin Film

Scientific paper

We continue to conduct penetration experiments of thin foils to support the development of cosmic-dust flight instruments that utilize thin films for the measurement of particle trajectories, or for the potential soft capture of hypervelocity impactors for subsequent compositional analysis upon retrieval to Earth. Each experiment is equipped with a witness plate, mounted to the rear of the target and fabricated from soft Aluminum-1100, ~30 x 30 cm in size and ranging from 2 to 5 mm thick; these witness plates essentially simulate the rear wall of a capture cell onto which the projectile material will plate out, including material that is being dislodged from the penetrated foil itself. Using compositionally contrasting projectile and foil materials in the laboratory, such as soda-lime glass impactors and aluminum targets, one produces two distinct populations of craters on the witness plates.

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