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Cleaning surface particle contamination with ultrapure water (upw) megasonic flow on genesis array collectors
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Calaway, Michael J. Stansbery, E. K. Hittle, J. D. Allton, J. H. Rodriquez, M. C. McNamara, K. M. |
| Copyright Year | 2006 |
| Description | 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. |
| File Size | 147612 |
| Page Count | 2 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080026010 |
| Archival Resource Key | ark:/13960/t49p8171n |
| Language | English |
| Publisher Date | 2006-03-13 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Thermodynamics Metallic Glasses Hard Landing Accumulators Particulates Grinding Comminution Cleaning Water Flow Sample Return Missions Metal Foils Solar Wind Contamination Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
