| Acronym | Meaning |
| IRE | Internal Reflection Element |
| BTE | Boltzmann Transport Equation |
| PSII | Plasma Source Ion Implantation |
| INEEL | Idaho National Engineering And Environmental Laboratory |
| WKB | Wentzel-Kramers-Brillouin (phase-shift Formula For Potential Scattering) |
| VMR | Vol. Mixing Ratio |
| BOTDR | Brillouin Optical Time Domain Reflectometry |
| VIMS | Visible And IR Mapping Spectrometer |
| CAC | Critical Aggregation Concentration |
| ACH | Air Changes Per Hour |