Lead free barium sulfate electrical insulator and method of manufacture
OwnerStuart J. McCordinventor
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Abstract
A high voltage insulator and radiation shield made of barium sulfate composite comprising a polymer matrix and at least about 20 percent barium sulfate therein. The device may be made by casting. By means of use of various combinations of barium sulfate, other radiologically resistant materials, polymers, and third components, the physical, radiological and electrical properties of the finished products may be tailored to achieve desired properties. In addition, the invention teaches that radiation shielding, insulators, and combined radiation shield/insulators may be fashioned from the composite. A wide range of production methods may be employed, including but not limited to liquid resin casting.
Claims8
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;
- the body made of a material comprising:
- a. a polymer matrix;
- and
- b. barium sulfate within the polymer matrix in an approximate amount between about 15% by volume and about 35% by volume.
Dependencies are inferred from the claim text.