Technique for fabricating radiation sensitive dosimeters
AssigneeWestinghouse Electric Corp.
InventorsEdward M. Petrie, John G. Seidel, Patrick E. Felice
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Abstract
The finely-divided particles of a selected phosphor material are combined with an aqueous solution of a suitable binder material to form an emulsion which is spread uniformly on the smooth surface of a support member. The wet coating is then heated to remove the water and the resulting film is sintered to produce a strong, continuous film. The film is then peeled from the support member resulting in a uniformly thick sheet of phosphor and binder from which dosimeters can be cut or stamped to any desired size.
Claims6
A method of fabricating a peelable alpha responsive radiation dosimeter film, comprising the steps of,
- mixing thermoluminescent radiation sensitive phosphor particles and a binder particle dispersion in water to form an aqueous emulsion of phosphor particles and binder particles in suspension, said aqueous emulsion having a viscosity of 30 centipose or greater,
- spreading the emulsion onto the surface of a support member to form a uniformly thick emulsion coating, said thickness being such that the removal of water results in a dosimeter coating of a thickness which renders the dosimeter coating responsive to alpha radiation,
- heating the emulsion coating to remove the water and form a dry dosimeter coating of phosphor particles and binder particles of a thickness which renders the dosimeter coating responsive to alpha radiation,
- sintering the dry dosimeter coating to form a continuous alpha responsive dosimeter film, said binder being such that said dosimeter film is a peelable dosimeter film, and
- peeling said alpha responsive dosimeter film from said support member.
Dependencies are inferred from the claim text.