Subscribe options

Select your newsletters:

Please enter your email address:

@

Your email address will only be used for the purpose of sending you the ITER Organization publication(s) that you have requested. ITER Organization will not transfer your email address or other personal data to any other party or use it for commercial purposes.

If you change your mind, you can easily unsubscribe by clicking the unsubscribe option at the bottom of an email you've received from ITER Organization.

For more information, see our Privacy policy.

News & Media

Links

Of Interest

See archived articles

Conferences


ITER NEWSLINE 17

John D. Lawson passed away

John D. Lawson (Click to view larger version...)
John D. Lawson
John D.Lawson, well known for his derivation of the Lawson criterion, a fundamental criterion (or principle) in fusion research, originally trained as an engineer. Through a series of coincidences he became involved in fusion research from its early days, and made important contributions that continue to influence the design of proposed fusion reactors.

The Lawson criterion: The Lawson criterion states that the product of the particle density of a plasma in particles per cm3 and the containment time in seconds at or above its ignition temperature, such that fusion energy released equals the energy required to produce and confine the plasma. In other words, for a successful fusion reactor, the aim is to get more energy out than you have to put in. The criterion is a constant equivalent to the product of plasma density x confinement time. The aim in fusion reactor design is to satisfy the criterion.

return to Newsline #17