Nuclear Reactor Criticality Procedure

Japan restarts reactor at world's largest nuclear plant

Fukushima nuclear plant operator restarts reactor at another plant, reviving safety concerns

The world’s largest nuclear power plant restarted Wednesday in north-central Japan for the first time since the 2011 Fukushima nuclear meltdown, as resource-poor Japan accelerates atomic power use to ...

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Alarm halts Kashiwazaki-Kariwa nuclear plant restart

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Japan restarts first nuclear reactor since Fukushima under close scrutiny

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Japan restarts world's largest nuclear plant as Fukushima memories loom large

Japan has restarted a reactor at the world's largest nuclear plant nearly 15 years after a disaster at the Fukushima power plant forced the country to shut all its nuclear reactors.

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Fukushima nuclear plant operator to restart reactor at another plant, reviving safety concerns

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Nuclear lapses overshadow reactor restarts in post-Fukushima Japan

Wired

Valar Atomics Says It’s the First Nuclear Startup to Achieve Criticality

A Trump administration pilot program aims for three nuclear startups to reach a key milestone by July 4, 2026. Valar Atomics says it’s the first to do so—but it had some help. It’s also, more specifically, the first company in a special Department of ...

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US firm ships world’s first ‘extra-modular’ nuclear reactor to reach criticality

Aalo Atomics has accelerated its push toward a 2026 first criticality goal by shipping five nuclear reactor test modules to the Idaho National Laboratory (INL). This project is part of a broader US Department of Energy (DOE) pilot program involving 10 ...

Yahoo

US startup achieves historic breakthrough with first-of-its-kind nuclear feat: 'The dawn of a new era'

A California-based nuclear startup has reached a hallowed milestone that could accelerate the development of more sustainable energy sources. Per Interesting Engineering, Valar Atomics announced it has achieved criticality, becoming the first nuclear ...

world-nuclear-news

DOE announces first selections for pilot reactor programme

The US Department of Energy has announced its initial selection of 11 advanced reactor projects for the Nuclear Reactor Pilot Program, which aims to see at least three of them achieve criticality in less than one year from now. A rendering of an IMSR power ...

Popular Mechanics

Unlimited Energy Is Closer Than Ever, Expert Says—Thanks to This Nuclear Reactor’s Breakthrough ‘First Heartbeat’

Scientists just brought us one step closer to the dream of unlimited power. On November 17 at the Nevada National Security Site, a nuclear energy startup called Valar Atomics achieved zero-power criticality, a crucial step in nuclear energy development.

Yahoo

US’ Last Energy to build 5 MW nuclear reactor to demonstrate safe, low-power criticality

In a step forward for innovation in the nuclear energy field, Last Energy has announced the deployment of a pilot microreactor at Texam A&M-RELLLIS, an applied research campus. Last Energy and the Texas A&M University System have announced plans for the ...

Gizmodo

California Startup Claims Historic ‘First’ in Fission Reactor Milestone

The startup’s achievement is impressive but underscores the quiet chaos of the nuclear industry following a series of sweeping executive orders in May. Reading time 3 minutes In May, a series of executive orders from the Trump administration signaled ...

world-nuclear-news

Aalo breaks ground for experimental reactor

Two weeks after being selected as one of the advanced reactor projects to receive support under the US Department of Energy's Nuclear Reactor Pilot Program, Aalo Atomics has broken ground at a site in Idaho to start construction of its first experimental ...