Patent Number: 
Section: claims

1. A high voltage insulating radiation enclosure comprising:a first truncated cone section and a second truncated cone section;the two truncated cone sections secured together at their respective bases by an overlap joint;an interior space defined by the two truncated cones sections;the first and second truncated cone sections having walls, the walls made of a material comprising:a) a polymer matrix andb) barium sulfate within the polymer matrix in an approximate amount of at least 10% by volume;a first emission port passing through at least one wall;a second electrical port passing through at least one walls. 2. The high voltage insulating radiation enclosure of claim 1, further comprising an X-ray tube disposed within the hollow body. 3. The high voltage insulating radiation enclosure of claim 1, further comprising at least one oil port passing through the walls. 4. The high voltage insulating radiation enclosure of claim 1, wherein the polymer matrix comprises at least one member selected from the following group: epoxy, polyester, polyurethane, silicone rubber, bismaleimides, polyimides, vinylesters, urethane hybrids, polyurea elastomer, phenolics, cyanates, cellulose, flouro-polymer, ethylene inter-polymer alloy elastomer, ethylene vinyl acetate, nylon, polyetherimide, polyester elastomer, polyester sulfone, polyphenyl amide, polypropylene, polyvinylidene flouride, acrylic, homopolymers, acetates, copolymers, acrlonitrile-butadiene-stryene, flouropolymers, ionimers, polyamides, polyamide-imides, polyacrylates, polyether ketones, polyaryl-sulfones, polybenzimidazoles, polycarbonates, polybutylene, terephthalates, polyether sulfones, thermoplastic polyimides, thermoplastic polyurethanes, polyphenylene sulfides, polyethylene, polypropylene, polysulfones, polyvinylchlorides, stryrene acrylonitriles, polystyrenes, polyphenylene, ether blends, styrene maleic anhydrides, allyls, aminos, polyphenylene oxide, and combinations thereof. 5. The high voltage insulating radiation enclosure of claim 1, wherein the polymer matrix comprises epoxy resin is an approximate amount of 50% to 70% by volume. 6. The high voltage insulating radiation enclosure of claim 1, further comprising:c) a third material. 7. The high voltage insulating radiation enclosure of claim 6, wherein the third material comprises at least one member selected from the following group: electrically insulating materials, binders, high density materials and combinations thereof. 8. The high voltage insulating radiation enclosure of claim 6, wherein the third material comprises at least one member selected from the following group: tungsten, lead, platinum, gold, silver, tantalum, calcium carbonate, hydrated alumina, tabular alumina, silica, glass beads, glass fibers, magnesium oxide/sulfate, wollastonite, stainless steel fibers, copper, carbonyl iron, iron, molybdenum, nickel and combinations thereof. 9. An electrical insulator for an ion source, the insulator comprising:a generally annular body having a diameter of at least 6 inches;the body having at least one vacuum sealing surface dimensioned and configured to provide a tight seal;at least one alignment pin projecting from the vacuum sealing surface of the insulator;at least one metal insert secured to the body;the body made of a material comprising:a. a polymer matrix andb. barium sulfate within the polymer matrix in an approximate amount of at least 35% by volume.