Patent Number: 
Section: claims

1. A cylindrical gamma ray generator, comprising:a cylindrical RF-driven plasma ion source for producing a hydrogen ion containing plasma;a hydrogen gas source in fluid communication with said plasma ion source whereby hydrogen gas can be introduced into said ion source;a cylindrically-shaped radial ion extractor system, the system disposed coaxially about the ion source for extracting hydrogen ions radially from the ion source; anda cylindrical target disposed coaxially outside and spaced from the ion source to receive hydrogen ions extracted from the source by the cylindrical extractor system, said target comprising a LaB6 target material, which target material is capable of undergoing proton/gamma (p,y) reactions when irradiated by hydrogen ions having an energy below 675 keV emitted from said source to produce gamma rays, wherein said produced gamma rays have an energy level above 6 MeV. 2. The generator of claim 1, further comprising an RF antenna disposed within the ion source. 3. The generator of claim 2, further comprising water cooling within the RF antenna. 4. The generator of claim 1 wherein the cylindrically-shaped radial ion extractor system comprises a plurality of axially extending slots. 5. The generator of claim 1 further comprising a vacuum chamber disposed to contain the target. 6. The generator of claim 1, wherein the hydrogen ions have an energy of approximately 163 keV.