{
  "annotation_id": "d1fad23f-01f8-42ff-a902-192561f0e31a",
  "date_created": "2026-03-02T18:00:52.894000Z",
  "date_modified": "2026-03-02T18:00:52.894000Z",
  "file_hash": "f7663d8ab741eaec61d5401fe29b330ba49c7e51b9233dc786a65c8035ddfdfa",
  "private": false,
  "record": {
    "abstract": "Monte Carlo simulations are increasingly used in scintigraphic imaging to\nmodel imaging systems and to develop and assess tomographic reconstruction\nalgorithms and correction methods for improved image quantitation. GATE (GEANT\n4 Application for Tomographic Emission) is a new Monte Carlo simulation\nplatform based on GEANT4 dedicated to nuclear imaging applications. This paper\ndescribes the GATE simulation of a prototype of scintillation camera dedicated\nto small animal imaging and consisting of a CsI(Tl) crystal array coupled to a\nposition sensitive photomultiplier tube. The relevance of GATE to model the\ncamera prototype was assessed by comparing simulated 99mTc point spread\nfunctions, energy spectra, sensitivities, scatter fractions and image of a\ncapillary phantom with the corresponding experimental measurements. Results\nshowed an excellent agreement between simulated and experimental data:\nexperimental spatial resolutions were predicted with an error less than 100 mu\nm. The difference between experimental and simulated system sensitivities for\ndifferent source-to-collimator distances was within 2%. Simulated and\nexperimental scatter fractions in a [98-182 keV] energy window differed by less\nthan 2% for sources located in water. Simulated and experimental energy spectra\nagreed very well between 40 and 180 keV. These results demonstrate the ability\nand flexibility of GATE for simulating original detector designs. The main\nweakness of GATE concerns the long computation time it requires: this issue is\ncurrently under investigation by the GEANT4 and the GATE collaborations",
    "arxiv_id": "physics/0411236",
    "authors": [
      "D. Lazaro",
      "I. Buvat",
      "G. Loudos",
      "D. Strul",
      "G. Santin",
      "N. Giokaris",
      "D. Donnarieix",
      "L. Maigne",
      "V. Spanoudaki",
      "S. Styliaris",
      "S. Staelens",
      "V. Breton"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "doi": "10.1088/0031-9155/49/2/007",
    "journal_ref": "Physics in Medicine and Biology 49 (2004) 271-285",
    "title": "Validation of the GATE Monte Carlo simulation platform for modelling a   CsI(Tl) scintillation camera dedicated to small animal imaging",
    "url": "https://arxiv.org/abs/physics/0411236"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6e740a22-956b-4a80-a76a-a63bdd8ee336",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}