| The core contains a maximum of 85 fuel subassemblies, 6 control rods and a variety of irradiation test rigs. The fuel region is divided into two regions to flatten the neutron flux distribution. The fueled core is surrounded by reflectors and shielding subassemblies. Maximum reactor power is 140MW, and is controlled by the operation of control rods. In an emergency，the reactor is shut down by automatic insertion of the control rods． |
| MK-III Core Characteristics |
| Thermal characteristics | Nuclear characteristics |
| Thermal Power‥‥140 MWt Max. Liner Heat Rate ‥‥420 W/cm Coolant Flow Rate ‥‥2,700 ton/h Coolant Temp. Reactor Inlet‥‥350℃ Reactor Outlet‥‥500℃ Max.Fuel Temp. Cladding Tube‥‥675℃ Pellet‥‥2,530℃ |
Fuel Material ‥‥Uranium-Plutonium Mixture Pu Content Inner/Outer ‥‥approx.23wt%/approx.30wt% U Enrichment ‥‥approx.18wt% Neutron Flux(Max.) ‥‥5.7×10 15n/cm2・sec Fast Neutron Flux(＞0.1MeV)(Max.) ‥‥4.0×1015n/cm2・sec Max. Burnup‥‥90,000MWd/t Excess Reactivity‥‥4.5％Δk/k |
Map of the MK-III Equilibrium Core