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


On This Day: More than 1,300 died after the British cruiser Hood was sunk by ...

Philenews 24 May 2024
Following are some of the major events to have occurred on May 24. ... More than 1,300 died ... 2006 – Agreement signed to build the International Thermonuclear Experimental Reactor (ITER), the world’s first nuclear fusion reactor. 2014 – Three people killed at Jewish Museum in Brussels....

NASA Takes Six Advanced Tech Concepts to Phase II

Universe Today 06 May 2024
It’s that time again. NIAC (NASA Innovative Advanced Concepts) has announced six concepts that will receive funding and proceed to the second phase of development ... Here they are ... PPR was originally derived from the Pulsed Fission Fusion concept ... PPR is basically a fusion system ignited by fission. It’s similar to a thermonuclear weapon ... ....