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The High Flux Isotope Reactor (HFIR) is a nuclear research reactor at Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee, United States.Operating at 85 MW, HFIR is one of the highest flux reactor-based sources of neutrons for condensed matter physics research in the United States, and it has one of the highest steady-state neutron fluxes of any research reactor in the world.
ORNL has several of the world's top supercomputers, including Frontier, ranked by the TOP500 as the world's second most powerful. The lab is a leading neutron and nuclear power research facility that includes the Spallation Neutron Source, the High Flux Isotope Reactor, and the Center for Nanophase Materials Sciences.
The protons pass into a ring-shaped structure, a proton accumulator ring, where they spin around at very high speeds and accumulate in "bunches." Each bunch of protons is released from the ring as a pulse, at a rate of 60 times per second (60 hertz). The high-energy proton pulses strike a target of liquid mercury, where spallation occurs.
A High Flux Reactor is a type of nuclear research reactor. High Flux Isotope Reactor (HFIR), in Oak Ridge, Tennessee, United States of America, High Flux Australian Reactor (HIFAR), Australia's first nuclear reactor, High-Flux Advanced Neutron Application Reactor (HANARO), in South Korea. The High Flux Reactor at Institut Laue–Langevin in France.
The Center for Nanophase Materials Sciences is the first of the five Nanoscale Science Research Centers sponsored by the United States Department of Energy.It is located in Oak Ridge, Tennessee and is a collaborative research facility for the synthesis, characterization, theory/ modeling/ simulation, and design of nanoscale materials.
HFIR – High Flux Isotope Reactor, Oak Ridge National Laboratory; SNS – Spallation Neutron Source, Oak Ridge National Laboratory; MURR – University of Missouri Research Reactor, Columbia, MO. MNRC – MacClellan Nuclear Research Center, Sacramento, CA. RPI LINAC - Rensselaer Gaerttner LINAC Center, Troy, NY.
Fusion forces together atoms of very light, stable elements like isotopes of hydrogen, creating slightly heavier elements like helium and producing as much as four times as much energy, per unit ...
They need far less fuel, and far less fission products build up as the fuel is used. On the other hand, their fuel requires more highly enriched uranium , typically up to 20% U-235 , [ 1 ] although some use 93% U-235; while 20% enrichment is not generally considered usable in nuclear weapons, 93% is commonly referred to as " weapons-grade ".