DOSIMETRY AND CANCER RISK ESTIMATIONS FOR DIFFERENT RADIATION PROTECTION SOLUTIONS AT DECOMMISSIONING A CONTAMINATED NUCLEAR POWER PLANT SITE

Martin Andersson, Keith Eckerman, Ünal Ören

Research output: Contribution to journalArticlepeer-review

Abstract

Contaminated sediments originating from dredging activities in a nuclear power plant site were placed in a pond, which has to be taken into consideration during the future decommissioning process. The sediments have to be handled to free release the site. The radionuclides Co-60 and Cs-137 were identified and the activity concentrations (Bq/kg) were quantified in the range of 10-6000 and 5-50 Bq kg-1, respectively. The absorbed dose rate to individuals of various ages and sex present at the site of the dry pond area was estimated. The radiological impact in terms of lifetime attributable risk (LAR) and effective dose were calculated. For a 30-year-old male exposed during one year without any action regarding the sediments in the dried out pond, the LAR was predicted to be 0.0027, which recalculated to effective dose corresponds to 7.6 mSv year-1. The calculations show that countermeasures will be needed for the contaminated site.

Original languageEnglish
Pages (from-to)1516-1521
Number of pages6
JournalRadiation Protection Dosimetry
Volume198
Issue number19
DOIs
Publication statusPublished - 2022 Nov 1

Subject classification (UKÄ)

  • Radiology, Nuclear Medicine and Medical Imaging

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