Irradiating filament and method of making same
AssigneeSchneider (Europe) A.G.
InventorsIgor I. Papirov, Anatolij I. Pikalov, Vladimir S. Shokurov, Sergej V. Sivtzov, Youri G. Popowski, Vitali E. Verin
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Abstract
A filament for irradiating a living body has a core material capable of irradiating radioactive radiation clad in a tubular casing of protective material different from the material forming the core. The materials forming the core and casing have a purity not less than 99.5 atomic percent and a grain size not exceeding 30 .mu.m and the outer diameter of the filament is not less than 80 .mu.m.
Claims30
A filament for irradiating a living body, comprising a core of radiation emitting material, the core being clad in a casing of protective material, wherein the materials forming the core and casing differ from one another and the materials forming the core and protective casing have a grain size equal to or less than 30 .mu.m.
An irradiating filament comprising:
- a first material adapted to emit radiation and a second material covering the first material wherein the first and second material each have a grain size equal to or less than about 30 .mu.m.
A clad composite filament comprising a core and a case, the core comprising a radiation emitting material and the case comprising a biocompatible material which is different than the radiation emitting material, wherein both of the radiation emitting material and the biocompatible material have a grain size which is less than or equal to 30 .mu.m.
Dependencies are inferred from the claim text.