The Light Water Reactor Sustainability Program is a U.S. government research and development program. It is directed by the United States Department of...

The light-water reactor (LWR) is a type of thermal-neutron reactor that uses normal water, as opposed to heavy water, as both its coolant and neutron moderator;...

modeling and simulation program elements Implementing a science-based R&D program The Light Water Reactor Sustainability Program supports national efforts...

A pressurized water reactor (PWR) is a type of light-water nuclear reactor. PWRs constitute the large majority of the world's nuclear power plants (with...

A boiling water reactor (BWR) is a type of nuclear reactor used for the generation of electrical power. It is the second most common type of electricity-generating...

water reactor (PWR). While heavy water is very expensive to isolate from ordinary water (often referred to as light water in contrast to heavy water)...

fast reactor (GFR), the lead-cooled fast reactor (LFR), the molten salt reactor (MSR), the sodium-cooled fast reactor (SFR), the supercritical-water-cooled...

attractive because they made more complete use of uranium fuel than light-water reactors, but interest declined after the 1960s as more uranium reserves were...

modular construction. Reactor type and the nuclear processes may vary. Of the many SMR designs, the pressurized water reactor (PWR) is the most common...

Canadian pressurized heavy-water reactor design used to generate electric power. The acronym refers to its deuterium oxide (heavy water) moderator and its use...

operation of the thorium-based Light Water Breeder Reactor (LWBR) core installed at the Shippingport Atomic Power Station. The reactor of this power plant was...

to a liquid metal cooled reactor than to a conventional light water cooled reactor. MSR designs are often breeding reactors with a closed fuel cycle—as...

first large-scale reactors were operated at the Hanford Site. The pressurized water reactor design, used in ~70% of commercial reactors, was developed for...

homogeneous substance). The water can be either heavy water or ordinary light water. In a gaseous fission reactor the reaction takes place in a core which is bounded...

Commons Attribution 4.0 International License. "Light Water Reactor Sustainability Program: Integrated Program Plan" (PDF). Energy.gov. US Dept. of energy...

A heavy water reactor (HWR) is a type of nuclear reactor which uses heavy water (D2O, deuterium oxide) as a neutron moderator. It may also use this as...

The Haigerloch research reactor was a German nuclear research facility. It was built in a rock cellar in Hohenzollerischen Lande, Haigerloch early in...

top of the reactor where the three operators were working. As the water struck the top of the reactor vessel, it propelled the entire reactor vessel to...

associated with different reactor types. U-235 is the world's primary nuclear fuel and is usually used in light water reactors. U-238/Pu-239 has found the...

source Generation IV reactor Light Water Reactor Sustainability Program List of books about nuclear issues List of nuclear reactors Lists of nuclear disasters...

fast-neutron reactor (FNR) or fast-spectrum reactor or simply a fast reactor is a category of nuclear reactor in which the fission chain reaction is sustained by...

atomic nucleus. Water (sometimes called "light water" in this context) is the most commonly used moderator (roughly 75% of the world's reactors). Solid graphite...

was India's first nuclear reactor built at BARC in 1956 to conduct basic research in nuclear physics. It is 1 MWTh light water cooled and moderated swimming...

the core, and therefore entering the reactor very close to the boiling point. Unlike other light-water reactor designs, the RBMK design at that time...

Devices designed to harness this energy are known as fusion reactors. Research into fusion reactors began in the 1940s, but as of 2025, no device has reached...

nuclear reactors, specifically the CANDU supercritical water reactor. Concentrated solar power can achieve the high temperatures necessary to split water. Hydrosol-2...

A subcritical reactor is a nuclear fission reactor concept that produces fission without achieving criticality. Instead of sustaining a chain reaction...

announced that in future, the South African nuclear program will concentrate on conventional light water reactors. The NGNP project will continue on HTGRs with...

light-water reactors that are currently under IAEA safeguards, but it has developed other aspects of the nuclear fuel cycle to support its reactors....

propulsion of a ship or submarine with heat provided by a nuclear reactor. The power plant heats water to produce steam for a turbine used to turn the ship's propeller...