PLASMA ACCELERATION APPARATUS AND PLASMA ACCELERATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a plasma acceleration apparatus and a plasma acceleration method with good thrust efficiency.SOLUTION: The plasma acceleration apparatus includes: a cathode 11 for supplying electrons to a plasma acceleration region; an anode 12; a power source 13 for applying voltage between the cathode and the anode; a supply port 14 that is disposed on the outer circumference side of the cathode and supplies a propellant to the plasma acceleration region; and a first magnetic field generator 15 for generating a first axial direction magnetic field for suppressing the electrons supplied from the cathode from heading toward the anode in an upstream region of the plasma acceleration region.SELECTED DRAWING: Figure 4