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Nuclear Production Tax Credit
The Nuclear Production Tax Credit is a US federal tax credit for electricity from existing nuclear plants, created by the Inflation Reduction Act of 2022.
Nuclear program of Saudi Arabia
Saudi Arabia's civilian nuclear program: K.A.CARE, NRRC regulator, SNEHC operator, Duwaiheen tender for two 1.4 GWe reactors with CNNC, EDF, KEPCO, Rosatom bidding, no reactor built, SQP rescinded 2024, no Additional Protocol.
Nuclear propulsion
Nuclear propulsion is the use of a reactor to supply vehicle energy. It is used in mature naval systems like submarines since the 1950s and in developing spacecraft applications.
Nuclear pulse propulsion
Nuclear pulse propulsion is a proposed spacecraft propulsion method in which small nuclear explosions behind a vehicle push a plate, developed as Project Orion from 1958 to 1965 and never flown.
Nuclear reactor
A nuclear reactor, also called an atomic reactor, is a machine that controls a nuclear chain reaction to generate heat, producing about 9% of the world's electricity.
Nuclear Regulation Authority
The Nuclear Regulation Authority (Genshiryoku Kisei Iinkai, abbreviated NRA) is Japan's independent nuclear regulatory body, created in 2012 as an external organ of the Ministry of the Environment after Fukushima.
Nuclear Regulatory Commission
The Nuclear Regulatory Commission is the independent US agency that licenses and regulates civilian nuclear power plants and radioactive materials, taking over from the Atomic Energy Commission in 1975.
Nuclear renaissance
The nuclear renaissance is the renewed interest in building nuclear power plants since the early 2000s, driven by climate policy, energy security, and rising electricity demand.
Nuclear reprocessing
Nuclear reprocessing is the set of chemical processes, chiefly PUREX, that separate usable uranium and plutonium from spent nuclear reactor fuel so they can be recycled into new fuel.
Nuclear safeguards
Nuclear safeguards are verification measures, applied chiefly by the International Atomic Energy Agency, by which states demonstrate that nuclear material stays in peaceful use and is not diverted to weapons.
Nuclear Safety Commission of Spain
The Nuclear Safety Commission of Spain (Consejo de Seguridad Nuclear, CSN) is Spain's independent regulator for nuclear safety and radiation protection, created by law in 1980.
Nuclear Safety Directive
The Nuclear Safety Directive, adopted in 2009 and amended in 2014, is binding EU law obliging Member States to maintain nuclear safety frameworks, independent regulators, and peer reviews.
Nuclear salt-water rocket
The nuclear salt-water rocket (NSWR) is a proposed rocket propulsion concept by Robert Zubrin in 1991, fissioning dissolved uranium salt for high thrust and specific impulse.
Nuclear spin qubit
A nuclear spin qubit stores quantum information in an atomic nucleus's spin; its weak magnetic coupling gives far longer coherence times than electron-spin qubits, though control and readout are harder.
Nuclear submarine
A nuclear submarine is a submarine powered by a nuclear reactor rather than diesel engines, freeing it from snorkeling for air; USS Nautilus made the first nuclear voyage in 1955.
Nuclear testing at Bikini Atoll
Nuclear testing at Bikini Atoll was the series of 23 US nuclear weapon tests conducted in the Marshall Islands between 1946 and 1958, including the Castle Bravo detonation.
Nuclear thermal rocket
A nuclear thermal rocket is a rocket engine that uses a fission reactor instead of combustion to heat hydrogen, delivering high thrust at roughly twice chemical propellant efficiency.
Nuclear Waste Fund
The Nuclear Waste Fund is a United States federal trust fund, created by the Nuclear Waste Policy Act of 1982 to pay for disposing of spent nuclear fuel.
Nuclear Waste Management Organization (Canada)
The Nuclear Waste Management Organization (NWMO) is a Canadian not-for-profit organization, established in 2002 under the Nuclear Fuel Waste Act to manage Canada's used nuclear fuel.
Nuclear Waste Policy Act
The Nuclear Waste Policy Act of 1982 is the US federal law directing the Department of Energy to develop geologic repositories for spent nuclear fuel and high-level waste.
Nuclear weapon design
Nuclear weapon design is the engineering discipline of arranging fissile material, explosives, and fusion fuel so a chain reaction releases nuclear energy within a fraction of a second.
Nuclear weapon yield
Nuclear weapon yield is the total energy released in a nuclear explosion, expressed as equivalent TNT tonnage, and ranges from tens of tons in small devices to megatons in thermonuclear weapons.
Nuclear weapons and Israel
Israel's nuclear program, centered on the Dimona reactor built with French help in the late 1950s, produced about 90 warheads it has never confirmed or denied, with no nuclear test.
Nuclear weapons of the United Kingdom
The nuclear weapons of the United Kingdom are a Trident submarine arsenal run by the Royal Navy as a continuous at-sea deterrent since 1969, first tested in 1952.
Nuclear weapons of the United States
The nuclear weapons of the United States form one of the world's two largest arsenals, first built under the Manhattan Project and used against Hiroshima and Nagasaki in 1945.
Nuclear weapons testing
Nuclear weapons testing is the controlled detonation of nuclear explosive devices to assess weapon performance and effects, first done by the United States at Trinity in 1945.
Nuclear-powered aircraft
A nuclear-powered aircraft is a crewed aircraft carrying an onboard fission reactor to drive its engines, researched by the US and Soviet Union but never flown under reactor power.
Nuclear-powered icebreaker
A nuclear-powered icebreaker is a surface ship driven by nuclear reactors, giving it the power to break thick sea ice and years of operation without refueling.
Nucleotide Transformer
The Nucleotide Transformer is a family of DNA language models by InstaDeep, NVIDIA, and Technical University of Munich, released in 2023 and published in Nature Methods in 2024.
Nucleus RTOS
Nucleus RTOS is a proprietary, royalty-free real-time operating system for embedded systems, first released as Nucleus PLUS in 1993 by Accelerated Technology, acquired by Mentor Graphics in 2002, and now sold by Siemens.