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Plasma Generation

UNSPECIFIED (2016) Plasma Generation PCT/GB2015/053294.

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Abstract

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.

Item Type: Patent
Subjects : Surrey Space Centre
Authors :
NameEmailORCID
Knoll, AKUNSPECIFIEDUNSPECIFIED
harle, TUNSPECIFIEDUNSPECIFIED
shaw, PUNSPECIFIEDUNSPECIFIED
frame, TUNSPECIFIEDUNSPECIFIED
wantock, TUNSPECIFIEDUNSPECIFIED
Date : 12 May 2016
Identification Number : PCT/GB2015/053294
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 11:00
Last Modified : 31 Oct 2017 18:42
URI: http://epubs.surrey.ac.uk/id/eprint/812137

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