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June 9, 2021, 7:00AMNuclear News

This image shows the individual pins in a full-core nuclear reactor simulation. (Image: ANL)

Coolant flow around the fuel pins in a light water reactor core plays a critical role in determining the reactor’s performance. For yet-to-be-built small modular reactors, a thorough understanding of coolant flow will be key to successfully designing, building, and licensing first-of-a-kind reactors.

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Construction begins on X-energy’s Oak Ridge advanced fuel facility

November 18, 2025, 12:07PMNuclear News

Small modular reactor developer X-energy and its subsidiary TRISO-X announced yesterday the start of above-ground construction for its TX-1 advanced nuclear fuel fabrication facility in Oak...

ANS Winter Conference: DOE, NRC leaders stress need for speedier nuclear approval

November 10, 2025, 2:22PMNuclear News

During speeches at the American Nuclear Society’s Winter Conference & Expo, happening this week in Washington, D.C., Energy Secretary Chris Wright and Nuclear Regulatory Commission Chair...

Industry Update—November 2025

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Here is a recap of recent industry happenings: ADVANCED REACTOR MARKETPLACE TerraPower’s Natrium plans for Wyoming, Utah move forwardTerraPower has reported a number of developments related...

A trip abroad

November 17, 2025, 7:01AMNuclear NewsHash Hashemian

In my August column in Nuclear News, I reflected on the importance of ANS’s annual conferences for bringing together our nuclear community at the national level. In September, after speaking...

The progress so far: An update on the Reactor Pilot Program

November 14, 2025, 12:10PMNuclear News

It has been about three months since the Department of Energy named 10 companies for its new Reactor Pilot Program, which maps out how the DOE would meet the goal announced in May by Executive...

New Mexico Nuclear Alliance begins its advocacy work

November 14, 2025, 7:02AMANS Nuclear Cafe

The New Mexico Nuclear Alliance made its official debut as a nuclear energy advocate in late October, when founder Scott Lopez spoke with state lawmakers during a meeting of the New Mexico...

New financing round benefits Valar

November 13, 2025, 3:00PMNuclear News

Hawthorne, Calif.–based reactor start-up Valar Atomics recently announced that it has raised $130 million in its Series A funding round, led by venture capital groups Snowpoint, Day One, and...

X-energy begins irradiation testing at INL

November 12, 2025, 3:01PMNuclear News

Advanced reactor and fuel developer X-energy has officially begun confirmatory irradiation testing at Idaho National Laboratory on its TRISO-X fuel. The testing, which is taking place over the...

ANS Winter Conference: Nuclear start-ups applaud DOE executive order on reactor testing

November 12, 2025, 12:00PMNuclear News

At the American Nuclear Society’s Winter Conference & Expo, leaders of advanced reactor start-ups Radiant Industries, Oklo, and Valar Atomics praised the Department of Energy’s Reactor...

BWXT and Purdue University team up on nuclear research

November 12, 2025, 9:30AMNuclear News

BWX Technologies and Purdue University have signed a memorandum of understanding to collaborate on research focused on next-generation nuclear technologies, including small modular reactors...

Argonne-led team models fluid dynamics of entire SMR core

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