{
  "annotation_id": "87919f96-4eb8-40f5-a363-9c48f2502d7c",
  "date_created": "2026-03-02T18:00:46.553000Z",
  "date_modified": "2026-03-02T18:00:46.553000Z",
  "file_hash": "d86355bcfd785f893d0936156d13f91826c5cb05a4a468e58615a4d70e3d37ae",
  "private": false,
  "record": {
    "abstract": "A comprehensive study was conducted to determine thorium, uranium and\npotassium elemental concentrations in surface soils throughout the accessible\narea of Cyprus using high-resolution gamma-ray spectrometry. A total of 115\nsoil samples was collected from all over the bedrock surface of the island\nbased on the different lithological units of the study area. The soil samples\nwere sieved through a fine mesh, sealed in 1000-mL plastic Marinelli beakers,\nand measured in the laboratory in terms of their gamma radioactivity for a\ncounting time of 18 hours each. From the measured gamma-ray spectra, elemental\nconcentrations were determined for thorium (range from 2.5x10^-3 to 9.8 micro g\ng-1), uranium (from 8.1x10^-4 to 3.2 micro g g-1) and potassium (from 1.3x10^-4\nto 1.9 %). The Arithmetic mean values (A.M. +- S.D.) calculated are (1.2 +-\n1.7) micro g g-1, (0.6 +- 0.7) micro g g-1, and (0.4 +- 0.3) %, for thorium,\nuranium and potassium, respectively, which are by a factor of three to six\nlower than the world average values of 7.4 micro g g-1 (Th), 2.8 micro g g-1\n(U) and 1.3 % (K) derived from all data available worldwide. The best-fitting\nrelation between the concentrations of Th and K versus U, and also of K versus\nTh, is essentially of linear type with a correlation coefficient of 0.93, 0.84,\nand 0.90, respectively. The Th/U, K/U, and K/Th ratios (slopes) calculated are\nequal to 2.0, 2.8x10^3,and 1.4x10^3, respectively.",
    "arxiv_id": "physics/0309008",
    "authors": [
      "Michalis Tzortzis",
      "Haralabos Tsertos"
    ],
    "categories": [
      "physics.med-ph",
      "nucl-ex",
      "physics.soc-ph"
    ],
    "journal_ref": "J.Environ.Radioact. 77 (2004) 325-338",
    "title": "Determination of thorium, uranium, and potassium elemental   concentrations in surface soils in Cyprus",
    "url": "https://arxiv.org/abs/physics/0309008"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f57c1501-99fa-498b-869a-0bdb1286d673",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}