21. The Wesson model offers an explanation fast sawtooth crashes in hot tokamaks . 22. We want to use our expertise on the tokamak . 23. Still collaborating, they now advocate an alternative design called a spherical tokamak . 24. Most of the stars of magnetic fusion experiments have been devices called tokamaks . 25. During this time, great strides in understanding the tokamak system were made. 26. This was a Tokamak built in Cadarache, France. 27. The ITER tokamak will use three interconnected cooling systems. 28. Its magnetic geometry is somewhat different from that of the more common tokamak . 29. As for tokamaks there is a special motivation for using the triple product. 30. This evolution led to considerable research on the spherical tokamak during the 1990s.