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- Title
Non-destructive method for determining the <sup>63</sup>Ni activity in reactor steels and alloys.
- Authors
Zheltonozhskaya, M. V.; Iyusyuk, D. A.; Chernyaev, A. P.; Kovacs, T.
- Abstract
A new non-destructive method has been proposed to determine the radioactivity of long-lived nickel radioisotopes produced in nuclear reactor metallic structural materials. We offer to use an electron accelerator and photonuclear reactions to determine the activity of 63Ni in spent reactor steel and alloys by the 60Co activity. The relative activity measurements allow to ignore factors such as material heterogeneity, differences in sample density and chemical composition. Using a semiconductor spectrometer with an HPGe detector, the developed method has an uncertainty of 5–10% and a sensitivity of 0.5 Bq g–1. It makes it possible to simplify the identification and control of 63Ni in metallic structural materials of nuclear power units and various types of radioactive waste. The proposed method was tested on RBMK-1000 and WWER-1000 reactor samples.
- Subjects
PHOTONUCLEAR reactions; NUCLEAR energy; RADIOACTIVE wastes; CONSTRUCTION materials; NUCLEAR reactors; ELECTRON accelerators
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2024, Vol 333, Issue 5, p2529
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-023-08936-y