Reactor Design ↔ Fuel Form Matrix
Compatibility matrix showing which reactor designs can use which HALEU fuel forms.
Fuel Form Definitions
TRISO: Tri-structural isotropic particle fuel
Metal: Metallic uranium fuel
Oxide: Uranium dioxide fuel
Enrichment Categories
<20%: Below 20% U-235 (HALEU)
15-20%: High-end HALEU range
5-20%: Full HALEU spectrum
| Reactor Design | TRISO | Metal | Oxide | Enrichment Range |
|---|---|---|---|---|
Xe-100 (X-energy) HTGR | ✓ | ✗ | ✗ | 15-20% |
Natrium (TerraPower) SFR | ✗ | ✓ | ✓ | 15-20% |
VOYGR (NuScale) PWR-SMR | ✗ | ✗ | ✓ | <20% |
KP-FHR (Kairos Power) FHR | ✓ | ✗ | ✗ | 15-20% |
MMR (Ultra Safe Nuclear) HTGR | ✓ | ✗ | ✗ | <20% |
Reactor Design Details
Xe-100 (X-energy)
HTGRHigh-temperature gas-cooled reactor using TRISO fuel
Allowed Fuel Forms:
TRISO
Enrichment Levels:
15-20%
Natrium (TerraPower)
SFRSodium-cooled fast reactor with metallic fuel
Allowed Fuel Forms:
MetalOxide
Enrichment Levels:
15-20%
VOYGR (NuScale)
PWR-SMRSmall modular pressurized water reactor
Allowed Fuel Forms:
Oxide
Enrichment Levels:
<20%
KP-FHR (Kairos Power)
FHRFluoride salt-cooled high-temperature reactor
Allowed Fuel Forms:
TRISO
Enrichment Levels:
15-20%
MMR (Ultra Safe Nuclear)
HTGRMicro modular reactor with fully ceramic microencapsulated fuel
Allowed Fuel Forms:
TRISO
Enrichment Levels:
<20%