Plasmagenerator innefattande offermaterial och metod för att bilda plasma samt ammunitionsskott innefattande en dylik plasmagenerator

The invention relates to a plasma generator (4, 4′) for electrothermal and electrothermal-chemical weapon systems, which plasma generator is intended to deliver at least one energy pulse for the formation of a plasma for accelerating a projectile (3) along the barrel (11) of the weapon system. The plasma generator comprises a combustion chamber (20) with a combustion chamber channel (20′), a centre electrode (24, 24′) disposed inside the combustion chamber channel, which combustion chamber and centre electrode are electrically conductive, and a ceramic tube (23) arranged between the combustion chamber and the centre electrode. The ceramic tube is shrink-fastened into the combustion chamber, and the plasma generator further comprises a polymeric sacrificial material (34, 34′), which is gasifiable by the energy pulse. The invention also relates to a method for making the plasma generator form a plasma, and an ammunition round having a plasma generator according to the invention.