Archive for the ‘nuclear energy’ category: Page 106
National Academies study recommends a pilot fusion energy program that aligns with MIT’s fusion approach and SPARC project.
Apr 28, 2019
China’s quest for clean, limitless energy heats up
Posted by Genevieve Klien in category: nuclear energy
A ground-breaking fusion reactor built by Chinese scientists is underscoring Beijing’s determination to be at the core of clean energy technology, as it eyes a fully-functioning plant by 2050.
Apr 25, 2019
Extracting something from nothing: A bright glow from empty space
Posted by Quinn Sena in categories: nuclear energy, particle physics, quantum physics
Particles travelling through empty space can emit bright flashes of gamma rays by interacting with the quantum vacuum, according to a new study by researchers at the University of Strathclyde.
It has long been known that charged particles, such as electrons and protons, produce the electromagnetic equivalent of a sonic boom when their speeds exceed that of photons in the surrounding medium. This effect, known as Cherenkov emission, is responsible for the characteristic blue glow from water in a nuclear reactor, and is used to detect particles at the CERN Large Hadron Collider.
According to Einstein, nothing can travel faster than light in vacuum. Because of this, it is usually assumed that the Cherenkov emission cannot occur in vacuum. But according to quantum theory, the vacuum itself is packed full of “virtual particles”, which move momentarily in and out of existence.
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Apr 25, 2019
China’s ‘artificial sun’ project to harness nuclear fusion energy
Posted by Genevieve Klien in category: nuclear energy
China’s “artificial sun” will achieve nuclear fusion by the middle of this century, one of the project leaders said Wednesday.
HL-2M Tokamak, the modified Chinese-designed “artificial sun” and a device to harness energy from fusion, will be completed this year. It is expected to increase the electricity intensity from one mega amperes to three mega amperes, an important step to achieve nuclear fusion, a spokesperson surnamed Liu with the press office of the Southwestern Institute of Physics (SWIP), affiliated with China National Nuclear Corporation, told the Global Times. An ampere is a standard measurement of electric current.
For instance, the deuterium (also known as heavy hydrogen) extracted from one liter of seawater releases the energy equivalent of burning 300 liters of gasoline in a complete fusion reaction, Liu said.
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Apr 20, 2019
Is Lockheed Martin working on a nuclear fusion-powered fighter jet?
Posted by Quinn Sena in categories: military, nuclear energy
Circa 2018
Lockheed Martin quietly obtained a patent for what could be a game-changing nuclear fusion reactor, one that could potentially fit into a fighter jet.
If the latest patent from defence manufacturing giant Lockheed Martin is anything to go by, nuclear fusion technology could revolutionise the future of travel.
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Apr 18, 2019
Artificial intelligence speeds efforts to develop clean, virtually limitless fusion energy
Posted by Quinn Sena in categories: nuclear energy, robotics/AI
Artificial intelligence (AI), a branch of computer science that is transforming scientific inquiry and industry, could now speed the development of safe, clean and virtually limitless fusion energy for generating electricity. A major step in this direction is under way at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) and Princeton University, where a team of scientists working with a Harvard graduate student is for the first time applying deep learning—a powerful new version of the machine learning form of AI—to forecast sudden disruptions that can halt fusion reactions and damage the doughnut-shaped tokamaks that house the reactions.
Promising new chapter in fusion research
“This research opens a promising new chapter in the effort to bring unlimited energy to Earth,” Steve Cowley, director of PPPL, said of the findings, which are reported in the current issue of Nature magazine. “Artificial intelligence is exploding across the sciences and now it’s beginning to contribute to the worldwide quest for fusion power.”
Apr 17, 2019
Researchers Just Demonstrated Nuclear Fusion in a Device Small Enough to Keep at Home
Posted by Quinn Sena in category: nuclear energy
When it comes to the kinds of technology needed to contain a sun, there are currently just two horses in the race. Neither is what you’d call ‘petite’.
An earlier form of fusion technology that barely made it out of the starting blocks has just overcome a serious hurdle. It’s got a long way to catch up, but given its potential cost and versatility, a table-sized fusion device like this is worth watching out for.
While many have long given up on an early form of plasma confinement called the Z-pinch as a feasible way to generate power, researchers at the University of Washington in the US have continued to look for a way to overcome its shortcomings.
Apr 16, 2019
Physicists spot the signatures of nuclear fusion in a table-top device
Posted by Genevieve Klien in categories: nuclear energy, physics
Stable plasma conditions are generated in a Z-pinch device for the first time, offering a new route more compact fusion reactors.
Apr 15, 2019
Removing Fuel Rods, Japan Hits Milestone in Fukushima Nuclear Cleanup
Posted by Genevieve Klien in categories: nuclear energy, robotics/AI
The operator of Japan’s ruined Fukushima nuclear power plant began removing radioactive fuel rods on Monday at one of three reactors that melted down after an earthquake and a tsunami in 2011, a major milestone in the long-delayed cleanup effort.
Thousands of former residents have been barred from the area around the plant for years as crews carried out a large-scale radioactive waste cleanup in the aftermath of the worst nuclear disaster since Chernobyl. The process of removing the fuel rods from a storage pool had been delayed since 2014 amid technical mishaps and high radiation levels.
The plant operator, Tokyo Electric Power, said in a statement that workers on Monday morning began removing the first of 566 spent and unspent fuel rods stored in a pool at the plant’s third reactor. A radiation-hardened robot had first located the melted uranium fuel inside the reactor in 2017.
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