FIELD: physics, atomic power.
SUBSTANCE: invention relates to modular nuclear reactors which convert nuclear fission wastes. The reactor continuously produces usable energy while converting U-238 and/or other fertile waste materials to fissionable nuclides. The reactor has a highly uniform, self-controlled core with a decades-long life and does not require reactivity control mechanisms within the active core during operation to ensure adequate safety. One version employs high-temperature helium coolant, a dual-segment initial annular critical core, carbide fuel, a fission product gas collection system, ceramic cladding and structural internal components.
EFFECT: economic production of energy over multiple generations of reactor cores with only minimum addition of fertile material for each generation.
17 cl, 12 dwg
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