Detection of 10Be concentration in nuclear power plant construction materials with activation method

M. V. Zheltonozhskaya$^1$, V. A. Zheltonozhskiy$^2$, D. E. Myznikov$^2$, A. P. Chernyeav$^1$, P. G. Shustov$^1$

Memoirs of the Faculty of Physics 2019. N 2.

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The highly toxic 10Be with a half-life T1/2 = 1,6106 years is formed in reactors structural materials. During the process of radioactive decay 10Be emits only electrons with a 555 keV boundary energy. Long-term and expensive radiochemical procedures are required for its detection and control. We propose to use the activation method for determining the 9Be and 10B concentrations in samples with subsequent recalculation of 10Be activity. To implement the proposed method and determine the contribution of 10Be to the structural materials samples, radioactive wastes samples (50 mg) were irradiated with γ-quanta with a 37 MeV boundary energy and 7Be activity in these samples was determined. The activity of 10Be in the sample with a maximum yield of 7Be was 0.09 Bq/g.

Received: 2019 March 21

Approved: 2019 April 23

PACS:

29.20.Ej Linear accelerators
25.20.Lj Photoproduction reactions

Authors

M. V. Zheltonozhskaya$^1$, V. A. Zheltonozhskiy$^2$, D. E. Myznikov$^2$, A. P. Chernyeav$^1$, P. G. Shustov$^1$
$^1$Department of Accelerator Physics and Radiation Medicine , Faculty of Physics, Moscow State University\
$^2$Kiev Institute for Nuclear Research National Academy of Science of Ukraine

Issue 2, 2019

Moscow University Physics Bulletin

Science News of the Faculty of Physics, Lomonosov Moscow State University

This new information publication, which is intended to convey to the staff, students and graduate students, faculty colleagues and partners of the main achievements of scientists and scientific information on the events in the life of university physicists.