In a conventional tokamak the plasma is held in a toroidal configuration, rather like a car tire or donut.
tokamak reactors, it should be applicable to any toroidal reactor device.
A traditional coil or toroidal transformer works very well for whole circuits of low voltage fittings, or for outside use.
Restrictions: Although ASPECT is designed for use with tokamak reactors, it should be applicable to any toroidal reactor device.
monochromatic radiation leaving the exit slit is focussed onto the sample by a toroidal mirror.