Heating in a vacuum atmosphere in the presence of a plasma

摘要

A method of heating in a vacuum atmosphere in the presence of a plasma, comprises the following steps: a) providing infrared radiation means ( 16 ) in a vacuum chamber ( 10 ); b) providing a first electrical conductor ( 18 ) to the infrared radiation means ( 16 ); c) providing a second electrical conductor ( 20 ) from the infrared radiation means ( 16 ); d) putting an electrical voltage over said infrared radiation means ( 16 ); e) preventing the first conductor ( 18 ) and the second conductor ( 20 ) from having an electrical voltage above +55 Volt. The advantage is that arcing is avoided.