Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1684396 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2007 | 5 Pages |
Abstract
To determine current radiation background of the environment at the “Giricic” location in Kastel Gomilica, Croatia, in situ measurement of radon concentration (222Rn and 220Rn) in an open atmosphere on a ground level and at the height of 1.5Â m has been made as well as total gamma radiation at the height of 1Â m in an energy range of 15Â keV to 2Â MeV. The researched location was divided in three specific parts: (i) regulated area with the bottom ash and flying ash in the basis (“old” depot), (ii) unregulated area with waste materials, including bottom ash and flying ash, in the basis (“new” depot), (iii) uncontaminated area with no waste materials deposited on. Average radon concentration on a ground level was 213Â Bq/m3 for the “old” depot, 214Â Bq/m3 for the “new” depot and 59Â Bq/m3 for the uncontaminated area and at the height of 1.5Â m 20Â Bq/m3 for the “old” depot, 34Â Bq/m3 for the “new” depot and 26Â Bq/m3 for the uncontaminated area. Average total gamma radiation values in selected energy range were 109.92Â cps (counts per second) for the “old” depot, 357.76Â cps for the “new” depot and 65.97Â cps for the uncontaminated area. For selected radionuclides (214Pb, 137Cs, 228Ac, 234mPa, 40K and 214Bi) average gamma radiation values at characteristic energies have been determined as well.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
Ivanka Lovrencic, Delko Barisic, Visnja Orescanin, Stipe Lulic,