| Acronym | Meaning |
| EPC | Emergency Planning Commission |
| NERC | National Environment Research Council |
| SR | Steradian |
| MOPS | Millions Of Operations (106) Per Second |
| VM/CMS | Virtual Machine/Conversational Monitor System |
| APDCS | Axial Power Distribution Monitoring System |
| DPS | Data Production Services |
| EAG | Exposure Assessment Group |
| ALDEN | Alden Electronics |
| ARL | Army Research Laboratory |