Lifeboat Foundation

The SLLIM is a liquid sodium nuclear fast reactor that generates 10 to 100 MW for many years, even decades, without refueling. It can’t meltdown, can operate without water, is factory fabricated and shipped to the construction site where it is installed below ground in a seismic-resistant cocoon.

Fusion energy startup First Light Fusion is working towards demonstrating “first fusion” before the end of the year, in their Oxford-based laboratory. If they succeed, they join only a few companies and research groups on the path to demonstrating “gain,” where the energy created outstrips the energy required to start the reaction, which they hope to do by 2024.

Demonstrating gain is the key marker of success and the proof required for the industry to start building the commercial infrastructure to scale the technology, but no company or research group has managed it yet. The history of fusion is littered with a few high-profile failures, prompting many to believe the “it’s always 30 years away” narrative, but with investment in the space heating up with more private investors starting to see the potential in recently-formed startups, belief in fusion is growing again.

In the fusion energy race, it’s arguably anybody’s game among the few key global leaders of both startups and publicly-funded research efforts. There’s the huge international research effort in the south of France, ITER, looking to demonstrate first plasma–not gain–at the end of 2025. And there’s the various startups with their different technological approaches attracting private funding worldwide, such as TAE with $600 million funding in Los Angeles, Boston-based Commonwealth Fusion Systems with $115 million raised in June and General Fusion with over $100 million based in British Columbia. In the U.K., Tokamak Energy has raised over $50 million.

General Motors is the latest automaker reported to be working on solid-state lithium batteries, thanks to a $2 million grant from Uncle Sam.

The money is part of a larger grant to develop more fuel-efficient powertrains, CNET reported. The company is expected to use the rest of the money to develop a lighter-weight, more efficient engine for medium duty trucks, perhaps to replace the company’s 6.2-liter V-8.

Continue reading “Kilopower: NASA’s Offworld Nuclear Reactor” »

An explosion at a Russian weapons testing site in August released radioactive isotopes that almost certainly came from a nuclear reactor, experts say.

A doctor who treated survivors of a mysterious nuclear accident in Russia was told that the radioactive isotope cesium-137 must have made its way into their body due to “Fukushima crabs,” according to CNN.

The August 8 incident at the Nyonoksa testing range on a platform in the White Sea has not yet been fully explained, but at least seven individuals have been reported dead after what nuclear agency Rosatom described as an accident involving an “isotope power source for a liquid-fuelled rocket engine.” It later emerged that the incident was serious enough that Russian officials in Arkhangelsk wavered over the issue of whether to issue evacuation orders for nearby towns. While several of the personnel deaths were due to an onsite explosion, the Washington Post reported this week (citing the Novaya Gazeta newspaper) that two individuals had died of radiation exposure before they could be taken to Moscow for treatment.

O.o.

Stellarators, twisty machines that house fusion reactions, rely on complex magnetic coils that are challenging to design and build. Now, a physicist at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory ( PPPL ) has developed a mathematical technique to help simplify the design of the coils, making stellarators a potentially more cost-effective facility for producing fusion energy.

“Our main result is that we came up with a new method of identifying the irregular magnetic fields produced by stellarator coils,” said physicist Caoxiang Zhu, lead author of a paper reporting the results in Nuclear Fusion. “This technique can let you know in advance which coil shapes and placements could harm the plasma ’s magnetic confinement, promising a shorter construction time and reduced costs.”

Continue reading “New Technique Streamlines Design of Intricate Fusion Devices” »

Last year, Pentagon mad science arm DARPA was working on one of its wildest projects yet: a microchip-sized nuclear reactor. The program is now officially done, the agency says. But these sorts of far-out projects have a habit of being reemerging under new managers and new names.

The project, known as the “Chip-Scale High Energy Atomic Beams” program, is an effort aimed at working on the core technologies behind a tiny particle accelerator, capable of firing subatomic particles at incredible speeds. It’s part of a larger DARPA plan to reduce all sorts of devices to microchip-scale – including cryogenic coolers, video cameras and multi-purpose sensors. All of the projects are ambitious (this is DARPA, after all). But this had to be the most ambitious of the lot. Here’s how DARPA’s plans for fiscal year 2009 described it:

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Ukrainian authorities are investigating a potential security breach at a local nuclear power plant after employees connected parts of its internal network to the internet so they could mine cryptocurrency.

The investigation is being led by the Ukrainian Secret Service (SBU), who is looking at the incident as a potential breach of state secrets due to the classification of nuclear power plants as critical infrastructure.

Investigators are examining if attackers might have used the mining rigs as a pivot point to enter the nuclear power plant’s network and retrieve information from its systems, such as data about the plant’s physical defenses and protections.

Stellarators, twisty machines that house fusion reactions, rely on complex magnetic coils that are challenging to design and build. Now, a physicist at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has developed a mathematical technique to help simplify the design of the coils, making stellarators a potentially more cost-effective facility for producing fusion energy.

“Our main result is that we came up with a new method of identifying the irregular magnetic fields produced by stellarator coils,” said physicist Caoxiang Zhu, lead author of a paper reporting the results in Nuclear Fusion. “This technique can let you know in advance which coil shapes and placements could harm the plasma’s magnetic confinement, promising a shorter construction time and reduced costs.”

Fusion, the power that drives the sun and stars, is the fusing of light elements in the form of plasma—the hot, charged state of matter composed of free electrons and atomic nuclei—that generates massive amounts of energy. Twisty, cruller-shaped stellarators are an alternative to doughnut-shaped tokamaks that are more commonly used by scientists seeking to replicate fusion on Earth for a virtually inexhaustible supply of power to generate electricity.