Radiation attenuation elastomeric material, a multilayer glove for protection against ionizing radiations and their uses
AssigneesAreva Nc, Piercan SAS
InventorsJean-Philippe Larmigny, Jean-Paul Mathieu, Dominique Guerin, Antoine Dobrowolski
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Abstract
A radiation attenuation elastomeric material which includes an elastomer in which a powder of metal oxides is dispersed, wherein the powder of metal oxides includes from 70 to 90% by mass of bismuth trioxide, from 5 to 15% by mass of tungsten trioxide, and from 5 to 15% of lanthanum trioxide. Multilayer protective gloves incorporating this material are suitable for use in protecting a wearer from ionizing radiation when handling radioactive materials.
Claims26
An elastomeric material comprising:
- an elastomer in which is dispersed a powder of metal oxides,
- wherein the powder of metal oxides comprises from 70 to 90% by mass of bismuth trioxide, from 5 to 15% by mass of tungsten trioxide, and from 5 to 15% by mass of lanthanum trioxide, such that said elastomeric material retains mechanical flexibility,
- wherein said elastomeric material is constructed so as to attenuate ionizing radiation in accordance with a gamma-radiation attenuation factor, and
- wherein said elastomer and said powder of metal oxides are selected in varying proportion to provide a particular mechanical flexibility and gamma-radiation attenuation factor.
A protective article for protecting against ionizing radiations, said protective article comprising:
- an elastomeric material in which is dispersed a powder of metal oxides,
- wherein the powder of metal oxides comprises from 70 to 90% by mass of bismuth trioxide, from 5 to 15% by mass of tungsten trioxide, and from 5 to 15% by mass of lanthanum trioxide, such that said elastomeric material retains mechanical flexibility,
- wherein said elastomeric material is constructed so as to attenuate ionizing radiation in accordance with a gamma-radiation attenuation factor, and
- wherein said elastomeric material and said powder of metal oxides are selected in varying proportion to provide a particular mechanical flexibility and gamma-radiation attenuation factor.
A protective multilayer glove for protecting against ionizing radiations, comprising:
- a first layer comprising at least one layer of an elastomeric material inserted between at least two other layers of another elastomeric material,
- wherein said elastomeric material of said at least first layer comprises an elastomeric material in which is dispersed a powder of metal oxides,
- wherein the powder of metal oxides comprises from 70 to 90% by mass of bismuth trioxide, from 5 to 15% by mass of tungsten trioxide, and from 5 to 15% by mass of lanthanum trioxide, such that said elastomeric material retains mechanical flexibility,
- wherein said elastomeric material is constructed so as to attenuate ionizing radiation in accordance with a gamma-radiation attenuation factor, and
- wherein said elastomeric material and said powder of metal oxides are selected in varying proportion to provide a particular mechanical flexibility and gamma-radiation attenuation factor.
Dependencies are inferred from the claim text.