W7-AS

Wendelstein 7-AS

Wendelstein 7-AS

The Wendelstein 7-AS (Advanced Stellarator) was located at the Max Planck Institut für Plasmaphysik (IPP) in Garching, Germany. The denomination 'advanced' refers to the use of modular (non-planar) coils. It has been operated from 1988 to July, 2002. Its successor is the W7-X stellarator.

Main parameters

Parameter	Value
Major radius, R0	2 m
Minor radius, a	≤ 0.18 m
Periodicity	5
Nr. of coils	45
Plasma volume	1 m3
Toroidal field, BT	≤ 3 T
Rotational transform	0.25 ≤ ι(a)/2π ≤ 0.7
Heating	5.6 MW
Pulse length	5 s

See also

• W7-AS page at IPP
• Island Divertor