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[[File:CANDU at Qinshan.jpg|thumb|upright=1.5|[[Qinshan Nuclear Power Plant|Qinshan]] Ph ...panies. It was later exported, and in 2026 there were 26 operational CANDU reactors worldwide: 17 in [[Nuclear power in Canada|Canada]], three in [[Nuclear pow ...

...een separated to prepare [[heavy water]] for use as a moderator in nuclear reactors. ...Tritium]] is both a nuisance in the coolant / moderator of water moderated reactors and a valuable product; it is thus sometimes separated from the coolant. ...

...pon design|nuclear weapons]], [[nuclear marine propulsion|naval propulsion reactors]], some [[research reactor]]s, and certain specialized reactor designs. The ...uclear reactors and requires additional processes to make it usable (the [[CANDU]] design is a notable exception). Uranium is mined either underground or in ...

{{About|nuclear fission reactors|nuclear fusion reactors|Fusion power}} ...up, University of British Columbia |title=Physics Nuclear Physics: Nuclear Reactors |url=https://scienceres-edcp-educ.sites.olt.ubc.ca/files/2015/01/sec_phys_n ...

! [[CANDU reactor|CANDU]] (Canada) [[nuclear power station]] ...ar%20Reactors%20Concepts%20and%20Thermodynamic%20Cycles.pdf |title=Nuclear Reactors Concepts and Thermodynamic Cycles |access-date=2012-03-22 |archive-url=http ...

...reactor]] and is a low-abundance byproduct in normal operations of nuclear reactors. ...lear fusion]] fuel, along with more abundant [[deuterium]], in [[tokamak]] reactors and in [[hydrogen bomb]]s. Tritium has also been used commercially in [[Bet ...

...tritium, an isotope of hydrogen, can be produced in heavy water-moderated reactors, though it requires high neutron fluxes and isotope separation.--> ...f deuterium is greater than usual. For instance, the heavy water used in [[CANDU reactor]]s is a highly enriched water mixture that is mostly deuterium oxid ...

...01 |website=science.nasa.gov |date=8 February 2024 |language=en-US}}</ref> Reactors producing controlled [[fusion power|''fusion'' power]] have been operated s ...92%. The average global capacity factor is 89%.<ref name=":3" /> Most new reactors under construction are [[generation III reactor]]s in Asia. ...

...meet any conceivable demand simply by utilizing more of the nation's power reactors.{{citation needed|reason=It is not obvious that any reactor could use TPBAR ...ould also be extracted from the heavy water moderator in [[CANDU]] nuclear reactors.<ref name="CRS" /><ref name="D2O">{{cite patent ...

...e as a [[MRI contrast agent|contrast agent for MRI scans]], are in nuclear reactors, in alloys, as a phosphor in medical imaging, as a gamma ray emitter, in el ...mergency shut-down measure in some nuclear reactors, particularly of the [[CANDU reactor]] type.<ref name="Greenwood" /> Gadolinium is used in [[nuclear mar ...

High purity beryllium can be used in nuclear reactors as a moderator,<ref>{{citation |last=Sicius |first=Hermann |title=Alkaline ...are good [[neutron reflector]]s, just as in beryllium-moderated [[nuclear reactors]].<ref name="weapons" /> ...

...ained [[nuclear chain reaction]]. This generates the heat in nuclear power reactors and produces the fissile material for nuclear weapons. The primary civilia ...nuclear weapons is diluted with uranium-238 and reused as fuel for nuclear reactors. [[Spent nuclear fuel]] forms [[radioactive waste]], which mostly consists ...

...m or deuterium, and induced [[nuclear fission]], such as occurs in nuclear reactors. In addition, high-energy nuclear reactions (such as occur in cosmic radiat [[Nuclear reactor|Nuclear fission reactors]] naturally produce free neutrons; their role is to sustain the energy-prod ...

..., is extracted from waste produced by [[nuclear reactor technology|nuclear reactors]]. It has the largest [[atomic radius]] of all elements whose radii have be ...10 |archive-url=https://web.archive.org/web/20110723231319/http://canteach.candu.org/library/20040720.pdf |archive-date=23 July 2011}}</ref><ref>{{cite jour ...

Many UN and US agencies warn that building more nuclear reactors unavoidably increases nuclear proliferation risks.<ref>{{cite web |url=http ...attempted to use research reactors (not commercial electricity-generating reactors) and a [[nuclear reprocessing]] plant to produce some [[weapons-grade pluto ...

...ator]], primarily in [[Pressurized heavy-water reactor|heavy water nuclear reactors]]. It is also used as an [[isotopic label]], in [[Hydrogen isotope biogeoch ...ada uses heavy water as a [[neutron moderator]] for the operation of the [[CANDU reactor]] design. ...

...ample the [[pressurized heavy-water reactor]]s such as the [[CANDU reactor|CANDU]] design. However, as of 2013, about 10% of those built use that technology ...

...lectrical generation. Most commonly used in reference to pressurized water reactors. |publisher=U.S. Nuclear Regulatory Commission |date=March 9, 2021 |access- ...r the nuclear industry. It accelerated the decline of efforts to build new reactors.<ref>{{cite news |url=https://www.youtube.com/watch?v=uNeECUgNGk0 |archive- ...

...s and release energy. Devices that use this process are known as '''fusion reactors'''. Research on fusion reactors began in the 1940s. As of 2025, the [[National Ignition Facility]] (NIF) in ...

...ed to increasing consumption, lack of energy efficiency and ageing nuclear reactors, Ontario has been forced in recent years to purchase power from its neighbo ...onal nuclear power plant in the world, is also in Ontario and uses eight [[CANDU reactor]]s to generate electricity for the province. ...