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


The science of style

The Roseburg News-Review 06 Oct 2022
PARISGabriela Hearst of Chloé is really, really excited about nuclear fusion ... So excited, in fact, that she took field trips to three fusion research centers ... She created a set in the circular shape of a tokamak, the name for the reactor that scientists hope to use to produce thermonuclear fusion....

India has supplied cryolines for ITER project in France: Atomic Energy Commission chairman

The Economic Times 28 Sep 2022
The International Thermonuclear Experimental Reactor (ITER) is a collaboration between seven countries to demonstrate nuclear fusion as a clean source of unlimited energy ... ....

A rare event: How to view Jupiter in the UK on it's closest pass with Earth for 59 years

ITV 26 Sep 2022
Jupiter, the largest planet in our solar system, is set to make its closest pass with the Earth in 59 years as we travel between it and the sun ... Something so rare, that it won't occur again until 2129 ... This is not to scale ... If Jupiter was larger and was hot enough inside to spark a thermonuclear fusion reaction it would shine bright like a star ... ....

IIT-BHU to make defence sector ‘atmanirbhar’, will set up link

The Times of India 18 Sep 2022
... powders, high power microwaves (HPM), including plasma heating, high-power RADAR, particle accelerator, power beaming, confined thermonuclear fusion, plasma generation and direct energy weaponry (DEW), directly or indirectly related to air force, navy and military applications....

Most Viewed