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Category: nuclear energy

Understanding the impact of radiation on silicon carbide devices for space applications

The first results of the ETH Zurich and ANSTO collaboration focused on silicon carbide (SiC) devices have been reported in two publications.

Dr. Corinna Martinella, formerly a senior scientist at ETH Zurich, said in a LinkedIn post that the research advances an understanding of the basic mechanisms of damage in SiC power devices exposed to .

An article in IEEE Transactions on Nuclear Science describes the testing of how commercial (SiC) power devices, including MOSFETs and Junction Barrier Schottky (JBS) diodes, respond to space-like radiation at a .

AI helps discover optimal new material for removing radioactive iodine contamination

Managing radioactive waste is one of the core challenges in the use of nuclear energy. In particular, radioactive iodine poses serious environmental and health risks due to its long half-life (15.7 million years in the case of I-129), high mobility, and toxicity to living organisms.

A Korean research team has successfully used artificial intelligence to discover a new material that can remove iodine for nuclear environmental remediation. The team plans to push forward with commercialization through various industry–academia collaborations, from iodine-adsorbing powders to contaminated water treatment filters.

Professor Ho Jin Ryu’s research team from the Department of Nuclear and Quantum Engineering, in collaboration with Dr. Juhwan Noh of the Digital Chemistry Research Center at the Korea Research Institute of Chemical Technology, developed a technique using AI to discover new materials that effectively remove contaminants. Their research is published in the Journal of Hazardous Materials.

Google just bought 200 megawatts of fusion energy that doesn’t even exist yet

Tech giant Google is investing money into a futuristic nuclear fusion plant that hasn’t been built yet but someday will replicate the energy of the stars. It’s a sign of how hungry big tech companies are for a virtually unlimited source of clean power that is still years away.

Google and Massachusetts-based Commonwealth Fusion Systems announced a deal Monday in which the tech company bought 200 megawatts of power from Commonwealth’s first commercial fusion plant, the same amount of energy that could power roughly 200,000 average American homes.

Commonwealth aims to build the plant in Virginia by the early 2030s. When it starts generating usable fusion energy is still TBD, though the company believes they can do it in the same timeframe.

Ocean model simulations shed light on long-term tritium distribution in released Fukushima water

Operators have pumped water to cool the nuclear reactors at the Fukushima Daiichi Nuclear Power Plant (FDNPP) since the accident in 2011 and treated this cooling water with the Advanced Liquid Processing System (ALPS), which is a state-of-the-art purification system that removes radioactive materials, except tritium.

As part of the water molecule, tritium radionuclide, with a half-life of 12.32 years, is very costly and difficult to remove. The ALPS-treated water was accumulating and stored at the FDNPP site and there is limited space to store this water. Therefore, in 2021, the Government of Japan announced a policy that included discharging the ALPS-treated water via an approximately one-kilometer-long tunnel into the ocean. Planned releases of the ALPS-treated water diluted with began in August 2023 and will be completed by 2050.

In a new numerical modeling study, researchers have revealed that the simulated increase in tritium concentration in the Pacific Ocean due to the tritium originating from the ALPS-treated water is about 0.1% or less than the tritium background concentration of 0.03−0.2 Bq/L in the vicinity of the site (within 25 km) and beyond.

Scientists develop new technique for capturing ultra-intense laser pulses in a single shot

Scientists at the University of Oxford have unveiled a pioneering method for capturing the full structure of ultra-intense laser pulses in a single measurement. The breakthrough, published in close collaboration with Ludwig-Maximilian University of Munich and the Max Planck Institute for Quantum Optics, could revolutionize our ability to control light-matter interactions.

This would have transformative applications in many areas, including research into new forms of physics and realizing the extreme intensities required for fusion energy research. The results have been published in Nature Photonics.

Ultra-intense lasers can accelerate electrons to near-light speeds within a single oscillation (or ‘wave cycle’) of the , making them a powerful tool for studying extreme physics. However, their rapid fluctuations and complex structure make real-time measurements of their properties challenging.

Physicists recreate forgotten experiment observing fusion

A Los Alamos collaboration has replicated an important but largely forgotten physics experiment: the first deuterium-tritium (DT) fusion observation. As described in the article published in Physical Review C, the reworking of the previously unheralded experiment confirmed the role of University of Michigan physicist Arthur Ruhlig, whose 1938 experiment and observation of deuterium-tritium fusion likely planted the seed for a physics process that informs national security work and nuclear energy research to this day.

“As we’ve uncovered, Ruhlig’s contribution was to hypothesize that DT fusion happens with very high probability when deuterium and tritium are brought sufficiently close together,” said Mark Chadwick, associate Laboratory director for Science, Computation and Theory at Los Alamos. “Replicating his experiment helped us interpret his work and better understand his role, and what proved to be his essentially correct conclusions. The course of nuclear fuel physics has borne out the profound consequences of Arthur Ruhlig’s clever insight.”

The DT fusion reaction is central to enabling fusion technologies, whether as part of the nation’s nuclear deterrence capabilities or in ongoing efforts to develop fusion for civilian energy. For instance, the deuterium-tritium reaction is at the center of efforts at the National Ignition Facility to harness fusion. Los Alamos physicists developed a theory about where the idea came from—Ruhlig—and then built an experiment that would confirm the import and accuracy of Ruhlig’s suggestion.

Watt’s Next? The AI Bros Discuss AI’s Impact On Entertainment And Energy

In this engaging new eighth episode of the AI Bros podcast, hosts John Lawson III and Bruce Burke delve into the dynamic world of artificial intelligence and its profound impact on various industries. The conversation kicks off with a discussion on the latest developments in AI, highlighting the massive investments being made by tech giants like Mark Zuckerberg, who recently acquired a significant stake in Scale AI. This move underscores the growing importance of data labeling in training AI models and the relentless pursuit of achieving Artificial General Intelligence (AGI).

The hosts explore the implications of AI on global infrastructure, particularly focusing on the energy demands required to support AI advancements. They discuss the necessity of building new data centers and the potential role of nuclear energy in meeting these demands. The conversation touches on the strategic moves by companies to secure energy resources, emphasizing the critical need for the U.S. to catch up with countries like China in terms of infrastructure development.

Transitioning to the realm of marketing and content creation, John and Bruce highlight how AI is revolutionizing these fields. They share insights into how AI tools are being used to automate tasks that were traditionally outsourced, such as virtual assistance, graphic generation, and scriptwriting. The hosts discuss the potential of AI to create high-quality content quickly and cost-effectively, as demonstrated by a recent AI-generated commercial aired during the NBA finals.

The episode also addresses the broader societal implications of AI, including the potential need for universal basic income (UBI) as AI continues to displace jobs. The hosts debate the feasibility of UBI in the U.S. and the challenges of implementing such a system. They reflect on historical technological advancements and the new job opportunities that AI might create, while acknowledging the uncertainty surrounding the pace and scale of these changes.

Throughout the episode, John and Bruce provide a balanced perspective on the opportunities and challenges presented by AI. They emphasize the importance of staying informed and adaptable in a rapidly evolving technological landscape. The hosts conclude with a forward-looking discussion on the future of AI in entertainment, speculating on the possibility of AI-generated feature films and the evolving role of AI in creative industries.

This episode is a must-listen for anyone interested in the intersection of technology, business, and society. It offers valuable insights into the transformative power of AI and its potential to reshape our world.

Join Bruce and John for the latest episode of The AI Bros Podcast. Subscribe, like, follow and share with your network. Thank you!

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