Thermonuclear fusion

Thermonuclear fusion is a way to achieve nuclear fusion by using extremely high temperatures. There are two forms of thermonuclear fusion: uncontrolled, in which the resulting energy is released in an uncontrolled manner, as it is in thermonuclear weapons such as the "hydrogen bomb", and controlled, where the fusion reactions take place in an environment allowing some of the resulting energy to be harnessed for constructive purposes. This article focuses on the latter.

Temperature requirements

Temperature is a measure of the average kinetic energy of particles, so by heating the material it will gain energy. After reaching sufficient temperature, given by the Lawson criterion, the energy of accidental collisions within the plasma is high enough to overcome the Coulomb barrier and the particles may fuse together.

In a deuterium–tritium fusion reaction, for example, the energy necessary to overcome the Coulomb barrier is 0.1 MeV. Converting between energy and temperature shows that the 0.1 MeV barrier would be overcome at a temperature in excess of 1.2 billion Kelvin.

Latest News for: Thermonuclear fusion

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Researchers report argon fluoride laser fusion research findings

Phys Dot Org 26 Oct 2021
Naval Research Laboratory experts race toward sustainable clean energy with advances in fusion energy ... This potential of the ArF laser for fusion energy has generated support by the DoE Advanced Research Projects Agency-Energy (ARPA-E) Breakthroughs Enabling Thermonuclear-fusion Energy (BETHE) program ... Nuclear scientists hail US fusion breakthrough....
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A Future Europe with Renewable and Nuclear Energy

Greek City Times 20 Oct 2021
Counterintuitively, multiple social movements across the continent propose to shut down the nuclear energy power plants ... When Romania will finally develop new reactors in Transylvania, beyond its four in Cernavoda, it would also extract tritium for use in ELI-NP experiments regarding thermonuclear fusion as energy source ... Opportunities come and go ... ....
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This Week In Science!

IFL Science 15 Oct 2021
FEATURED ... Can we master nuclear fusion and achieve unlimited energy? Join us for the latest episode of our podcast, IFLScience The Big Questions, where we talk to Dr Elise Delchambre of the International Thermonuclear Experimental Reactor – the world's largest fusion experiment – about nuclear fusion and how it might change the world. Listen here. ....
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IFLScience The Big Questions: Can We Achieve Unlimited Energy?

IFL Science 14 Oct 2021
Can we master nuclear fusion and achieve unlimited energy? Our host Dr Alfredo Carpineti talks to Dr Elise Delchambre of the International Thermonuclear ......
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Unexpected results of nuclear reactions found within stars

International Business Times 13 Oct 2021
Another research revealed a key fusion process involving hydrogen and a rare oxygen isotope has been detected within stars using a novel experimental approach. Thermonuclear fusion occurs both quietly in older stars and explosively in novae and supernovae. A key fusion process ......
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Lawrence Livermore researchers focus on fast flows in thermonuclear fusion

Technology Org 25 Sep 2021
The same thing happens when the drive pushing on an inertial confinement fusion (ICF) capsule is imbalanced — if it pushes harder on the top than on the bottom the capsule will move downward. This motion detracts from the energy heating the capsule and generating fusion....
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New Magnet Is Powerful Enough to Lift an Aircraft Carrier

Interesting Engineering 14 Sep 2021
Less than a week after a Bill Gates-backed MIT startup announced it had successfully tested a massive magnet that could allow them to achieve "net energy" with their nuclear fusion reactor, scientists at France's International Thermonuclear Experimental Reactor (ITER) received the first part of another huge magnet, explains....
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China's central region on way to greater devt

The Manila Times 14 Sep 2021
BEIJING ... Building on its current technology edges, Anhui would strive to break new ground in cutting-edge technologies such as quantum information, thermonuclear fusion and advanced light sources while building itself into an influential technological innovation center, said Deng ... Wei Tao ... ....
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China's central region boasts great development potential

Beijing News 14 Sep 2021
BEIJING, Sept ... dollars) ... Building on its current technology edges, Anhui would strive to break new ground in cutting-edge technologies such as quantum information, thermonuclear fusion, and advanced light sources while building itself into an influential technological innovation center, said Deng ... .......
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Magnet milestones move dream of nuclear fusion closer

The Los Angeles Times 09 Sep 2021
On Thursday, scientists at the International Thermonuclear Experimental Reactor in southern France took delivery of the first part of a massive magnet so strong, its American manufacturer claims, that it can lift an aircraft carrier ... Achieving fusion requires unimaginable amounts of heat and pressure ... Nuclear fusion gets ready for its close-up....
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Fusion: US scientists cross major milestone in creating clean nuclear energy source

The Independent 02 Sep 2021
Although the energy output lasted for only 100 trillionths of a second, the reaction generated more than 10 quadrillion watts of power that could help initiate thermonuclear fusion. Once a fusion reaction is initiated, it ......
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Physicists Just Broke the Laser-Fusion Record, Generating 700 Times the US Energy Grid

Interesting Engineering 02 Sep 2021
Thermonuclear weapons may be dangerous, but they're also a mystery ... The $3.5-billion facility in the Lawrence Livermore National Laboratory, California, was designed to investigate fusion reactions at the heart of thermonuclear weapons, not operate as a fully-fledged power plant ... Time is crucial for repeat laser-fusion nuclear reaction....
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The race to give nuclear fusion a role in the climate emergency

The Observer 29 Aug 2021
On 8 August 2021, a laser-initiated experiment at the United States National Ignition Facility (NIF), based at Lawrence Livermore National Laboratory in California, made a significant breakthrough in reproducing the power source of the stars, smashing its own 2018 record for energy released from nuclear fusion reactions 23 times over....
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