| タイトル | Electron beam charging of Space Shuttle thermal protection system tiles |
| 本文（外部サイト） | http://hdl.handle.net/2060/19850014167 |
| 著者（英） | Staskus, J. V. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1985-03-01 |
| 言語 | eng |
| 内容記述 | Six space shuttle reusable surface insulation tiles were tested in the NASA Lewis Research Center's electron bombardment test facility. The 30-cm-square specimens were assembled by using the same materials and techniques used to apply the tiles to the space shuttle and were composed to 15-cm- and 20-cm-square tiles and pieces on 0.6-cm-thick aluminum substrates. There were two specimens of each of three thicknesses. One specimen of each thickness had gaps of less than 0.1 cm between tiles, and the other had gaps of approximately 0.15 cm. The specimens were exposed to monoenergetic electron beams (2 to 25 keV) with nominal fluxes of 0.1 and 1 nA/sq. cm. Tests were conducted with both grounded and floating substrates. The data presented include charging rates, equilibrium potentials, and substrate currents. There is evidence that discharging occurred. |
| NASA分類 | SPACECRAFT DESIGN, TESTING AND PERFORMANCE |
| レポートNO | 85N22478 |
| 権利 | No Copyright |
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