Technical Design
CNT, which is housed in a cylindrical vacuum chamber made of 316 stainless steel, measures 60 inches in diameter and stands 75 inches tall. The empty chamber is capable of reaching a pressure of 2x10-10 Torr.
CNT is unique in its simple geometry. Magnetic surfaces are created using only 4 electromagnetic coils - two interlocking coils inside the chamber, and two poloidal field coils outside the chamber. The two interlocking coils have a radius of .405m, and the angle between them can be manually selected to be 64°, 78°, or 88°, allowing for different shear and rotational transform values, and magnetic surface configuration. The poloidal field coils have a radius of 1.08m. The coils are powered by a 200 kW power supply and are capable of producing magnetic fields of 0.01-0.2T. The configuration of CNT creates a very low aspect ratio of 1.9, the lowest of any stellarator built.
| Parameter | Value |
|---|---|
| ne | 1012-1014 m−3 |
| Te | 1-100 eV |
| B | 0.01-0.2T |
| R | 0.3m |
| a | 0.1m |
| P | 10−10 Torr |
Read more about this topic: Columbia Non-neutral Torus
Famous quotes containing the words technical and/or design:
“In middle life, the human back is spoiling for a technical knockout and will use the flimsiest excuse, even a sneeze, to fall apart.”
—E.B. (Elwyn Brooks)
“Nowadays the host does not admit you to his hearth, but has got the mason to build one for yourself somewhere in his alley, and hospitality is the art of keeping you at the greatest distance. There is as much secrecy about the cooking as if he had a design to poison you.”
—Henry David Thoreau (1817–1862)