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@misc{Knoll:2020, author = {Knoll, A and Harle, T and Peter, S and Frame, T and Wantock, T}, title = {Plasma generation}, type = {Patent}, url = {http://hdl.handle.net/10044/1/80854}, year = {2020} }
TY - PAT AB - A plasma torch having an open end from which a plasma plume is emitted in use is disclosed. The plasma torch includes a central cathode rod, a grounded conductive tube having an open end and being arranged around the cathode and spaced therefrom to form a first cylindrical cavity open at one end; and a high voltage electrode having a dielectric barrier material at a radially inward-facing surface thereof and being arranged around the grounded conductive tube and spaced apart therefrom to form a second annular cylindrical cavity open at one end. A constant direct current (DC) electrical power plus a high voltage pulsed electrical power is provided to the cathode producing an arc discharge in the first cavity between the cathode and grounded tube to generate a central thermal plasma emitted at an open end of the first cylindrical cavity. A high voltage alternating current electrical power or pulsed electrical power is provided to the high voltage electrode producing a dielectric barrier discharge in the second annular cylindrical cavity to generate a non-thermal plasma emitted from an open end of the second cavity as a halo around the central thermal plasma. AU - Knoll,A AU - Harle,T AU - Peter,S AU - Frame,T AU - Wantock,T PY - 2020/// TI - Plasma generation UR - http://hdl.handle.net/10044/1/80854 ER -