Advanced Reactor Technologies (ART)  is a national program funded by the U.S. Department of Energy (DOE). Here at INL, work is focused specifically on developing a High Temperature Gas-cooled Reactor (HTGR), which will offer enhancements in safety and efficiency. This HTGR has a modularized design, which enables plants with larger power demands to simply build more than one module.  Modularization requires no extra design work and increases safety and efficiency by allowing a singular module to run or be stopped at any given time in the event of an incident or a changing need for power. HTGRs also produce process heat during operation, making them ideal for location near other industrial plants that could put this process heat to use in their own production and thus reduce the need for non-renewable energy sources upon which these plants currently rely.

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HTM.JPGAlloy 617 Qualified For New Use
5/5/2020 6:53 AMJodi L. Vollmer
A team at INL in collaboration with groups at ANL and ORNL, as well as industry consultants and international partners, has for the first time in 30 years gotten a new material, Alloy 617, into the Code.
Commercial Alloy Qualified For New Use, Expanding Nuclear Operating Temperature
HTR History.JPGHistory of High Temperature Reactors
9/20/2019 10:14
The idea of a nuclear reactor operating at high temperature was first conceived in the early days of nuclear power plant development.
The idea of a nuclear reactor operating at high temperature (>700C) was first conceived in the early days of nuclear power plant development and government programs were instituted to develop the fuels, materials, and power conversion systems that could withstand these temperatures.
Special_Award.pngFraming Safety Renewing Safety Standards
9/20/2019 1:03
Three INL researchers awarded by ANS for their enhancement of regulatory framework for advanced nuclear reactors.
Framing Safety Renewing Safety Standards
TEST EXT-19-53723_Strength After Oxidation.pngDegradation of Strength under Oxidizing Conditions
1/20/2020 2:53 PMJodi L. Vollmer
Degradation of Strength under Oxidizing Conditions
The Degradation of Strength under Varying Oxidizing Conditions for Nuclear Graphite, INL/EXT-19-53723, April 2019.
TRi-structural ISOtropic particle fuel — or TRISO, for short — is a type of micro fuel particle, quite possibly the most robust type of nuclear fuel.
Tristructural isotropic (TRISO) coated particle fuel is a robust, microencapsulated fuel form developed originally for use in
high-temperature gas-cooled reactors (HTGRs).
To read full article see Nuclear News August 2020, Vlume 63, Number 9
Tristructural isotropic (TRISO) particle fuel has long been used in high-temperature gas-cooled nuclear reactors, but it is seeing a resurgence as a result of other applications. Read more
Outside of public research limitations, private technology developers are making headway, especially to develop tristructural-isotropic (TRISO) fuel. While it still has no commercial power-producing users, TRISO—a type of HALEU fuel—is seeing a resurgence of interest in the U.S., where it was first developed in the 1960s for gas-cooled reactors.



INL-NRIC Virtual Tour212549June 23True ​ INL-NRIC Virtual Tour - YouTube Take a tour of INL, the home of NRIC. It begins with the Idaho Falls campus where engineering, research and business work is conducted. Then a tour to the desert site of the Materials and Fuels Complex where we test and demonstrate new technologies to bring them closer to readiness. SHOW LESS ​ 6/10/2021 4:44:55 PM2
GCR Program Review July 13-15 116393July 13True ​Advanced Reactor Development Program Review and Collaboration - Registration Link​ 6/10/2021 4:45:07 PM59
​12th Annual Modeling, Experimentation, and Validation (MeV) Summer School,95718July 19True ​ 12th Annual Modeling, Experimentation, and Validation (MeV) Summer School, July 19-30, 2021 ​ https//​​ 3/18/2021 9:11:44 PM45
Utility Working Conference and Vendor Technology Expo205637Aug 8True ANS ​Utility Working Conference and Vendor Technology Expo 3/18/2021 9:12:06 PM47
MSR Chemistry Workshop213335Aug 30True ​ MSR Workshop at PNNL’s Discovery Hall in Richland, Washington. For MORE information follow this link https// ​ ​ 3/18/2021 9:12:22 PM45
Tour EBR-I213518Sept 7True ​ Visitors can now virtually tour the world’s first nuclear power plant, Experimental Breeder Reactor-I (EBR-I), any time of year from wherever they are – in English or Spanish – using Travel Stories​ 3/18/2021 9:13:42 PM42