In the future fusion reactor, plasma is confined by using the magnetic field inside the doughnut-shaped vacuum vessel.
The blanket is in a location where it almost touches the plasma, and as if to enfold the plasma the blanket is placed on the inner surface of the vacuum chamber.
The blanket, by absorbing the high-speed particles generated by the fusion reaction inside the plasma, releases heat and a higher temperature is achieved.
Using that heat, hot water is heated and produces steam to power the steam turbine.
As new material for producing the blanket, there are prospects for using vanadium, which is atomic number 23, as the principal component of the alloy.
Among earlier alloys, there were problems of breakage during machining for pipes and easy breakage after welding of pipe-fitting connections.