{
  "annotation_id": "80947637-5506-4a36-9d76-efcda34b1994",
  "date_created": "2026-03-02T18:00:50.324000Z",
  "date_modified": "2026-03-02T18:00:50.324000Z",
  "file_hash": "d5a1de1324154ca36b2c09e383cfb81b9664de937462e5f0bf3c63a06d8bdec9",
  "private": false,
  "record": {
    "abstract": "The turbulent transport of impurity or minority species, as for example\nTritium, is investigated in drift-Alfv\\\u0027en edge turbulence. The full effects of\nperpendicular and parallel convection are kept for the impurity species. The\nimpurity density develops a granular structure with steep gradients and locally\nexceeds its initial values due to the compressibility of the flow. An\napproximate decomposition of the impurity flux into a diffusive part and an\neffective convective part (characterized by a pinch velocity) is performed and\na net inward pinch effect is recovered. The pinch velocity is explained in\nterms of Turbulent Equipartition and is found to vary poloidally. The results\nshow that impurity transport modeling needs to be two-dimensional, considering\nbesides the radial direction also the strong poloidal variation in the\ntransport coefficients.",
    "arxiv_id": "physics/0403129",
    "authors": [
      "Volker Naulin"
    ],
    "categories": [
      "physics.plasm-ph",
      "physics.flu-dyn"
    ],
    "doi": "10.1103/PhysRevE.71.015402",
    "title": "Impurity and Trace Tritium Transport in Tokamak Edge Turbulence",
    "url": "https://arxiv.org/abs/physics/0403129"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0fac8501-b673-42b9-baf0-ac2420f232fe",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}