Photoactivation Approach to the Determination of Long-lived Nickel Isotopes in NPP Structural Materials
- Authors: Zheltonozhskaya M.V.1, Chernyaev A.P.1, Yusyuk D.A.1, Balaba Y.O.1
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Affiliations:
- Moscow State University, Faculty of Physics
- Issue: No 2 (2023)
- Pages: 101-109
- Section: ФИЗИЧЕСКИЕ ПРИБОРЫ ДЛЯ ЭКОЛОГИИ, МЕДИЦИНЫ, БИОЛОГИИ
- URL: https://freezetech.ru/0032-8162/article/view/670563
- DOI: https://doi.org/10.31857/S0032816223010317
- EDN: https://elibrary.ru/PXENOW
- ID: 670563
Cite item
Abstract
A photoactivation method has been developed for determining the activity of long-lived nickel isotopes by the 60Co activity in metallic structural materials of a reactor core. The error of this method is 5–10%, and the sensitivity is 0.5 Bq/g if semiconductor γ-ray spectrometers with high-purity germanium detectors are used. Following the proposed approach, it is possible to significantly simplify the identification, testing, and certification of metallic structural materials at the stage of reactor decommissioning as well as to significantly reduce the cost of these works compared to the radiochemical methods.
About the authors
M. V. Zheltonozhskaya
Moscow State University, Faculty of Physics
Email: nzhelton@yandex.ru
119991, Moscow, Russia
A. P. Chernyaev
Moscow State University, Faculty of Physics
Email: nzhelton@yandex.ru
119991, Moscow, Russia
D. A. Yusyuk
Moscow State University, Faculty of Physics
Email: nzhelton@yandex.ru
119991, Moscow, Russia
Yu. O. Balaba
Moscow State University, Faculty of Physics
Author for correspondence.
Email: nzhelton@yandex.ru
119991, Moscow, Russia
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