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A method and apparatus for exciting gas that involves generating an alternating magnetic field unidirectionally through a magnetic core defining a gap, across the gap and through a plasma vessel that includes dielectric material. The magnetic field induces an electric field in the plasma vessel that

A method and apparatus for exciting gas that involves generating an alternating magnetic field unidirectionally through a magnetic core defining a gap, across the gap and through a plasma vessel that includes dielectric material. The magnetic field induces an electric field in the plasma vessel that generates the plasma.

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What is claimed is: 1. An inductively-coupled plasma source for exciting gases comprising:a. a plasma vessel comprising a dielectric material; andb. a transformer comprising a magnetic core defining a gap that generates an alternating magnetic field unidirectionally through the core, across the gap

What is claimed is: 1. An inductively-coupled plasma source for exciting gases comprising:a. a plasma vessel comprising a dielectric material; andb. a transformer comprising a magnetic core defining a gap that generates an alternating magnetic field unidirectionally through the core, across the gap and through the plasma vessel which induces an electric field in the plasma vessel that generates a plasma.