Determination activity of radionuclides in marine sediment by gamma spectrometer with anti cosmic shielding.
In this work, the activities of radionuclides in a marine sediment sample have been determined. The gamma spectrometer comprises an N type coaxial HPGe detector with active shielding to reduce cosmic background. The mass activities of radionuclides have been derived and found to be around a few Bq kg(-1) to several hundreds Bq kg(-1) with relative uncertainties in this paper quoted corresponding to the combined standard uncertainties (k=1).
University of Science, Faculty of Physics & Engineering Physics, Department of Nuclear Physics, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Viet Nam. ttthanh@phys.hcmuns.edu.vn
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D019015:Geologic Sediments / Q000737:chemistry*; D011834:Radiation Monitoring; D011868:Radioisotopes / Q000032:analysis* / Q000737:chemistry; D012623:Seawater / Q000737:chemistry; D013051:Spectrometry, Gamma / Q000379:methods*; D014875:Water Pollutants, Radioactive / Q000032:analysis* / Q000737:chemistry
D011868:Radioisotopes; D014875:Water Pollutants, Radioactive