Device that achieves nuclear fission without triggering a chain reaction
A subcritical reactor is a nuclear fission reactor concept that produces fission without achieving criticality. Instead of sustaining a chain reaction, a subcritical reactor uses additional neutrons from an outside source. There are two general classes of such devices. One uses neutrons provided by a nuclear fusion machine, a concept known as a fusion–fission hybrid. The other uses neutrons created through spallation of heavy nuclei by charged particles such as protons accelerated by a particle accelerator, a concept known as an accelerator-driven system (ADS) or accelerator-driven sub-critical reactor.
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A subcriticalreactor is a nuclear fission reactor concept that produces fission without achieving criticality. Instead of sustaining a chain reaction...
generation). In other words, when the reactor is critical, k = 1; when the reactor is subcritical, k < 1; and when the reactor is supercritical, k > 1. Reactivity...
physics, an energy amplifier is a novel type of nuclear power reactor, a subcriticalreactor, in which an energetic particle beam is used to stimulate a...
subcritical mass is a mass that does not have the ability to sustain a fission chain reaction. A population of neutrons introduced to a subcritical assembly...
be added to a U/Pu MOX fuel before it is loaded into a fast reactor or a subcriticalreactor run in "Actinide burner mode". This is one means of transmutation...
pressurized water reactors (PWR) have a primary cooling loop of liquid water at a subcritical pressure, transporting heat from the reactor core to a secondary...
heavier elements could be transmuted in fast reactors, but probably more effectively in a subcriticalreactor which is sometimes known as an energy amplifier...
module (HPM) is a reactor design emanating from the Los Alamos National Laboratory that uses uranium hydride as fuel. Subcriticalreactors are designed to...
problem in a subcriticalreactor, it may even be slightly advantageous as criticality can be brought closer to unity, while still staying subcritical. The actinides...
ensure they are operable. The equilibrium level of neutron flux in a subcriticalreactor is dependent on the neutron source strength; a certain minimum level...
to 3 neutrons, these nuclides represent a net loss of neutrons. A subcriticalreactor operating in the thermal neutron spectrum would have to adjust the...
release), a common type of music envelope Accelerator-driven subcriticalreactor, a nuclear reactor using a particle accelerator to generate a fission reaction...
a next-generation, thorium-fueled nuclear reactor concept known as an accelerator-driven subcriticalreactor. After obtaining a master's degree, Barron...
Miniature Neutron Source Reactor Light Water SubcriticalReactor (LWSCR) Heavy Water Zero Power Reactor (HWZPR) Graphite SubcriticalReactor (GSCR) Arak – IR-40...
other scientists at the University of California, Berkeley in 1942. Subcriticalreactor Thermal neutron Void coefficient Tucker, Todd (2009). Atomic America:...
plug melts, and the fuel drains to a subcritical passively cooled storage facility. This not only stops the reactor, also the storage tank can more easily...
Spallation is a proposed neutron source in subcritical nuclear reactors like the upcoming research reactor MYRRHA, which is planned to investigate the...
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