| AI | artificial intelligence |
| CANDOR | Chromatic Analysis Neutron Diffractometer or Reflector |
| CHRNS | Center for High Resolution Neutron Scattering |
| FY | fiscal year |
| GAO | Government Accountability Office |
| HEU | highly enriched uranium |
| HFBS | High-Flux Backscattering Spectrometer |
| ILL | Institut Laue-Langevin |
| IMS | Innovations in Measurement Science |
| LEU | low enriched uranium |
| MACS | multi-axis crystal spectrometer (MACS)-II spectrometer |
| MAGIK | multi-angle grazing incidence K-vector reflectometer |
| ML | machine learning |
| MML | Material Measurement Laboratory |
| MRI | major research instrumentation |
| NB | non-base |
| NCNR | NIST Center for Neutron Research |
| NICE | new instrument control environment |
| NIST | National Institute of Standards and Technology |
| NRC | U.S. Nuclear Regulatory Commission |
| NSE | neutron spin echo spectrometer |
| NSF | National Science Foundation |
| OA | other government agencies |
| ORCID | open researcher and contributor ID |
| ORNL | Oak Ridge National Laboratory |
| PML | Physical Measurement Laboratory |
| PoLAR | polarized large angle resolution spectrometer |
| ppm | parts per million |
| SAC | Safety Assessment Committee |
| SANS | small-angle neutron scattering |
| SNS | Spallation Neutron Source |
| SPINS | spin polarized inelastic neutron spectrometer |
| STEM | science, technology, engineering, and mathematics |
| STRS | scientific and technical research service |
| USANS | ultra-high-resolution small-angle neutron scattering |
| VSANS | very-small-angle neutron scattering |
| WCF | working capital fund |