| CNR | Center for Neutron Research
|
| DOC | Department of Commerce
|
| DOE | Department of Energy
|
| NCNR | NIST Center for Neutron Research |
| NIF | Neutron Imaging Facility
|
| NIST |
National Institute of Standards and Technology
|
| PEM |
Polymer Electrolyte Membrane or Proton Exchange Membrane |
| PML | Physical Measurement Laboratory |
