Research of the activation of construction materials and biological protection of the WWR-M type reactor

For the first time at the WWR-M type reactor, the photoactivation method was employed to measure the activities of long-lived radionuclides generated in structural materials and concrete shielding, whose decay is not accompanied by gamma-ray emission. The results demonstrated that the activities of these radionuclides are well below the regulatory release limits. In addition, the activities of gamma-emitting radionuclides were evaluated, indicating that the activity of 60Со in certain structural components significantly exceeds the maximum permissible concentration.