TRIGA research reactor

E89319

nuclear reactor pool-type reactor research reactor design thermal neutron reactor training reactor

The TRIGA research reactor is a small, inherently safe nuclear reactor design widely used in universities and research institutions for education, training, and scientific experiments.

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All labels observed (9)

Label	Occurrences
TRIGA Mark F	2
TRIGA Mark I	2
TRIGA Mark II	2
TRIGA Mark III	2
TRIGA	1
TRIGA Mark G	1
TRIGA Mark R	1
TRIGA Power Reactor (TPR)	1
TRIGA research reactor canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T734328 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: TRIGA research reactor
Context triple: [Reed College, reactorType, TRIGA research reactor]

A. X-10 graphite reactor
The X-10 graphite reactor was an early nuclear reactor at Oak Ridge, Tennessee, built during the Manhattan Project as a pilot plant for plutonium production and a key step toward the development of nuclear weapons and nuclear energy.
B. K-West Reactor
K-West Reactor is one of the plutonium production reactors at the Hanford Site in Washington State, historically used to support the U.S. nuclear weapons program.
C. Chicago Pile-2
Chicago Pile-2 was an early research nuclear reactor built at the Argonne site to continue and expand experimental work following the first controlled chain reaction achieved by Chicago Pile-1.
D. Chicago Pile-1
Chicago Pile-1 was the world’s first artificial nuclear reactor, achieving the first controlled, self-sustaining nuclear chain reaction in 1942 under the leadership of Enrico Fermi.
E. Hanford production reactors
The Hanford production reactors were a series of plutonium-producing nuclear reactors built during and after World War II at the Hanford Site in Washington State as part of the U.S. nuclear weapons program.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: TRIGA research reactor
Target entity description: The TRIGA research reactor is a small, inherently safe nuclear reactor design widely used in universities and research institutions for education, training, and scientific experiments.

A. X-10 graphite reactor
The X-10 graphite reactor was an early nuclear reactor at Oak Ridge, Tennessee, built during the Manhattan Project as a pilot plant for plutonium production and a key step toward the development of nuclear weapons and nuclear energy.
B. K-West Reactor
K-West Reactor is one of the plutonium production reactors at the Hanford Site in Washington State, historically used to support the U.S. nuclear weapons program.
C. Chicago Pile-2
Chicago Pile-2 was an early research nuclear reactor built at the Argonne site to continue and expand experimental work following the first controlled chain reaction achieved by Chicago Pile-1.
D. Chicago Pile-1
Chicago Pile-1 was the world’s first artificial nuclear reactor, achieving the first controlled, self-sustaining nuclear chain reaction in 1942 under the leadership of Enrico Fermi.
E. Hanford production reactors
The Hanford production reactors were a series of plutonium-producing nuclear reactors built during and after World War II at the Hanford Site in Washington State as part of the U.S. nuclear weapons program.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	nuclear reactor ⓘ pool-type reactor ⓘ research reactor design ⓘ thermal neutron reactor ⓘ training reactor ⓘ
hasAcronymMeaning	Training, Research, Isotopes, General Atomics ⓘ
hasApplication	industrial neutron activation analysis ⓘ medical isotope production ⓘ reactor operator licensing training ⓘ research institutions ⓘ university teaching laboratories ⓘ
hasControlElement	boron carbide control rods ⓘ
hasCoreConfiguration	open pool core ⓘ
hasDeployment	multiple countries worldwide ⓘ
hasDesignGoal	basic reactor physics experiments ⓘ education ⓘ materials testing at low to moderate flux ⓘ neutron activation analysis ⓘ neutron radiography ⓘ operator training ⓘ radioisotope production ⓘ
hasDesignPhilosophy	ease of operation and maintenance for educational users ⓘ fail-safe behavior under rapid reactivity insertions ⓘ
hasDesignVariant	TRIGA Mark F ⓘ linked to: TRIGA research reactor TRIGA Mark I ⓘ linked to: TRIGA research reactor TRIGA Mark II ⓘ linked to: TRIGA research reactor TRIGA Mark III ⓘ linked to: TRIGA research reactor TRIGA Power Reactor (TPR) ⓘ linked to: TRIGA research reactor
hasFuelEnrichmentRange	highly enriched uranium in some early installations ⓘ low-enriched uranium in later models ⓘ
hasKeyFeature	inherent safety characteristics ⓘ pulsing capability ⓘ strong negative temperature coefficient of reactivity ⓘ
hasManufacturer	General Atomics ⓘ
hasSafetyFeature	large negative prompt temperature coefficient ⓘ prompt negative feedback from fuel heating ⓘ self-limiting power excursions ⓘ simple natural convection cooling at low power ⓘ water pool shielding ⓘ
hasTypicalPowerRange	from a few kilowatts to several megawatts thermal ⓘ
isWidelyUsedIn	national laboratories ⓘ research centers ⓘ universities ⓘ
usesCoolant	light water ⓘ
usesFuelType	uranium-zirconium hydride fuel ⓘ
usesModerator	light water ⓘ zirconium hydride in fuel matrix ⓘ
usesNeutronReflector	graphite ⓘ
wasFirstDevelopedBy	General Atomics in the late 1950s ⓘ

How these facts were elicited