FIELD: nuclear engineering.
SUBSTANCE: essence of the invention lies in the fact that the body of the alpha radiation source is made detachable in the form of interconnected bushings and nuts with profiled outer surfaces forming inside the body an internal profiled cavity with end radial grooves on the inner end sides of the nut and bushing, the substrate is made in the form of a cylinder from a flexible elastic foil, which can be repeatedly rolled into a cylinder, and installed in the end grooves on the inner surfaces of the sleeve and nut, the cylinder of flexible elastic foil is closed from above by a perforated separator installed between the outer end surfaces of the sleeve and the nut and made mainly from a fragment of a fuel rod pipes.
EFFECT: ensuring the stability of the results of monitoring the alpha contamination of fuel rods, simplifying the process of performing periodic certification of radiation sources.
2 cl, 4 dwg
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