Ionization chambers of plasma generators at high temperatures

Claim 1

AN IONIZATION CHAMBER OF A PLASMA GENERATOR FOR PRODUCING A JET, OF THE TYPE COMPRISING AROUND AN AXIS A FIRST ELECTRODE CONSTITUTING A PORTION OF A WALL OF THE CHAMBER, AN OUTLET OPENING FOR THE JET OF PLASMA FORMED THROUGH THE FIRST ELECTRODE, A SECOND ELECTRODE PROJECTING COAXIALLY INTO SAID CHAMBER OPPOSITE TO SAID OPENING, PASSAGE MEANS FOR CONDUCTING GAS INTO THE CHAMBER, MEANS FOR INTRODUCING GAS INTO SAID PASSAGE MEANS, AND MEANS INCLUDING CONDENSER DISCHARGE MEANS FOR CREATING VOLTAGE IMPULSES BETWEEN BOTH ELECTRODES, IN WHICH THE SECOND ELECTRODE COMPRISES A HEAD PORTION PROTUDING INTO THE CHAMBER AND A BODY PORTION FORMED WITH AN INTERNAL PASSAGE CONSTITUTING THE SAID PASSAGE MEANS FOR CONDUCTING GAS INTO THE CHAMBER, SAID PASSAGE MEANS AN AXIAL REAR PORTION AND A FRONT PORTION LEADING TO OUTLET MEANS OF THE SECOND ELECTRODE, ARRANGED SYMMETRICALLY AROUND THE AXIS AND OPENING INTO THE CHAMBER RECESSED WITH RESPECT TO THE SAID HEAD PORTION.