Chemical analysis of hyper velocity impacts on the solar cells of the hubble space telescope with epma-edx and SIMS

Details Chemical analysis of hyper velocity impacts on the solar cells of the hubble space telescope with epma-edx and SIMS Chemical analysis of hyper velocity impacts on the solar cells of the hubble space telescope with epma-edx and SIMS

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997adspr..19..257h&link_type=abstract

Advances in Space Research, Volume 19, Issue 2, p. 257-260.

Computer Science

Scientific paper

The Technical University Darmstadt received 20 solar cell samples of the retrieved Hubble Space Telescope solar wing for chemical characterization of hypervelocity impact residues in and around all impacts. The solar cells were analyzed by electron probe microanalysis with energy dispersive X-ray detection (EPMA-EDX) and secondary ion mass spectrometry (SIMS). Because of the complexity of the solar cells it was extremely difficult to unequivocally identify fragments of space debris or micrometeoroides by EPMA-EDX. However, analyses with SIMS clearly indicate the presence of thin films of re-condensed projectile material. These films around impact craters consist of Na, K and Ca and can only be detected by SIMS.

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