Radiological Characterization of Solid Radioactive Waste Generated During the Decommissioning of the BN-350 Reactor

Nurzhan Ye. Mukhamedov, A. S. Surayev, S. A. Dolzhikov, Kuanyshbek Toleubekov, Berik Medetbekov

2026

Full text Open access: Gold Metadata (CSL-JSON)
DOI 10.3390/app16104936
Data confidence 70 medium
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Abstract

This study presents the radiological characterization of 15 solid radioactive waste samples originating from the BN-350 sodium-cooled fast reactor (Kazakhstan) during its decommissioning phase. The studied materials include components of ventilation and wastewater treatment systems, pipeline elements and various operational tools. The objective of the study was to determine the activity levels of the samples and to assess appropriate pathways for their subsequent management and processing. The results indicate that all studied materials fall within the category of low-level radioactive waste. Gamma spectrometric analysis shows that Cs-137 is the dominant and only identified gamma-emitting radionuclide contributing to the activity of the studied samples.