| Acronym | Meaning |
| REELS | Reflection Electron Energy-loss Spectroscopy |
| NPO | National Program Office |
| SCCM | Self-consistent Cell Model |
| SCRF | Self-consistent Reaction Field |
| LVQ | Learning Vector Quantization |
| NITEP | National Incinerator Testing And Evaluation Program (Canada) |
| DTC | Developmental Test Command [US Army] |
| AIPM | Analytic Independent-particle Model (in Electron-scattering) |
| SRIXE | Synchrotron Radiation-induced X-ray Emission |
| PSD | Position Sensitive Detector |