| Acronym | Meaning |
 | BEI | Backscattered Electron Imaging |
| SEP | Solar Energetic Particle (event) |
| PEC | Predicted Environmental Concentration |
| SDO | Shielded Diatomic Orbital |
| TRLFS | Time Resolved Laser Fluorescence Spectroscopy |
| OPM | Optimized Potential Model |
| IECA | International Erosion Control Association |
| CBI | Confidential Business Information |
| DRESS | Depth-resolved Surface-coil Spectroscopy |
| SCIT | Standing Committee On Information Technologies |
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