Three dimensional analysis of impact crater profiles on the SFU spacecraft's teflon radiators

Details Three dimensional analysis of impact crater profiles on the SFU spacecraft's teflon radiators Three dimensional analysis of impact crater profiles on the SFU spacecraft's teflon radiators

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999adspr..23..113m&link_type=abstract

Advances in Space Research, Volume 23, Issue 1, p. 113-117.

Computer Science

1

Scientific paper

We report on three dimensional morphology of about 100 hypervelocity impact craters on the Teflon radiators of the SFU spacecraft measured by scanning laser microscope and X-ray CT technique. We also performed impact calibration experiments using a two-stage light-gas gun at ISAS with alumina, glass and copper bead projectiles of diameters 50 to 80 μm at velocities from 3.5 to 4.5 km/s, in order to reproduce impact crater profiles formed in space. As a result, the depth to diameter ratio of these impact craters constrains bulk density, velocity and size of impactors, which are complementary information to elemental analysis regarding the origin of the impactors, namely meteoroids or space debris.

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