W7-AS
The Wendelstein 7-AS (Advanced Stellarator) is located at the Max Planck Institut für Plasmaphysik (IPP) in Garching, Germany. [1] Its operation ended in July, 2002; its successor is the W7-X stellarator.
Main parameters
| Parameter | Value |
|---|---|
| Major radius, R0 (m) | 2 |
| Minor radius, a (m) | ≤ 0.18 |
| Periodicity | 5 |
| Toroidal field, BT (T) | ≤ 3 |
| Rotational transform | 0.25 ≤ ι(a)/2π ≤ 0.7 |