APRFR Core Design Data
| Core Diameter | 8.90 inches |
| Core Height[1] | 8.0 inches |
| Fuel Alloy | 90 wt % uranium - |
| 10 wt % molybdenum | |
| Uranium-235 Enrichment | 93.14% |
| Total Fuel Mass[2] | 125 |
| Safety Block Mass | 15.7 kg |
| Safety Block Height | 8.06 inches |
| Safety Block Diameter | 4.00 inches |
| Glory Hole Diameter | 1.50 inches |
| Number of Control Rods | Three |
| Core Cooling | Forced Air |
| Number of Core Bolts | Nine |
| Safety Block Reactivity Worth | ~$20 |
| Pulse Rod Reactivity Worth | ~$1.15 |
| Core Environment During Pulse | Dry Nitrogen |
| Core Cooling | Forced Air |