| タイトル | Cleaning Surface Particle Contamination with Ultrapure Water (UPW) Megasonic Flow on Genesis Array Collectors |
| 本文（外部サイト） | http://hdl.handle.net/2060/20080026010 |
| 著者（英） | Stansbery, E. K.; McNamara, K. M.; Allton, J. H.; Calaway, Michael J.; Hittle, J. D.; Rodriquez, M. C. |
| 著者所属（英） | NASA Johnson Space Center |
| 発行日 | 2006-03-13 |
| 言語 | eng |
| 内容記述 | The hard landing experienced by the Genesis sample return capsule breached the science canister containing the solar wind collectors. This impact into the damp lakebed contaminated collector surfaces with pulverized collector and spacecraft materials and Utah sediment and brine residue. The gold foil, polished aluminum, and bulk metallic glass remained intact, but the solar wind bulk and regime-specific array collectors were jarred loose from their frames and fractured into greater than 10,000 specimens. After a year of investigation and cleaning experimentation, the Genesis Science Team determined that array collectors had 4 classes of contaminants: particles, molecular film, submicron inorganic particulate ("aerosol"), and pre-launch surface contamination. We discuss here use of megasonically energized ultrapure water (UPW) for removing particulate debris from array collector fragments. |
| NASA分類 | Fluid Mechanics and Thermodynamics |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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