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USING ION BEAM ANALYSIS AND COMPUTER TOMOGRAPHY FOR STUDY THE CONTROL RODS OF REACTOR PROTECTION SYSTEM

The work is to develop methods for studying the Control Rods of Reactor Protection System (CR RPS). The isotopic and elemental content powder of boron carbide, the elemental content of alloy of shell of control rods, density and uniformity of the distribution of the absorber in the rod was studied. For investigate isotopic and elemental content was used PIGE and PIXE. A method has been developed and the isotopic composition of B4C has been experimentally studied on the basis of the registration of γ-radiation excited in the proton reactions of the nuclei of isotopes 10B, 11B, 12C. A method for analyzing the mass content in samples of boron carbide and 42HNM alloy was created for the range of elements from Al to W. The possibilities of research of integrity of a cover of control rods and density and uniformity of distribution in it of an absorber by a method of a computer tomography are studied.