{
  "annotation_id": "e6168855-fb58-46d7-8fc7-38d28624740a",
  "date_created": "2026-03-02T18:00:32.100000Z",
  "date_modified": "2026-03-02T18:00:32.100000Z",
  "file_hash": "121289ad707486f4e82e19c6bc11df1405d0cd2d66a35e8279dd4b72653515b8",
  "private": false,
  "record": {
    "abstract": "The design of a detector based on MICROMEGAS (MICRO MEsh GAseous Structure)\ntechnology is presented. Our detector is characterized by a large active area\nof 398(\\times)281 mm(^{2}), a pad read-out with 20(\\times)22 mm(^{2})\nsegmentation, and an uniform amplification gap obtained by insulating spacers\n(100 (\\mu)m high and 200 (\\mu)m in diameter). The performances of several\nprototypes have been evaluated under irradiation with secondary beams of 2\nGeV/c momentum charged pions and electrons. We consider such a detector as the\nbasic element for a pre-shower detector to equip the PHOton Spectrometer (PHOS)\nof the ALICE experiment. Its assets are modularity, small amount of material,\nrobustness and low cost.",
    "arxiv_id": "physics/0008003",
    "authors": [
      "L. Aphecetche",
      "H. Delagrange",
      "D. G. d\u0027Enterria",
      "M. Le Guay",
      "X. Li",
      "G. Mart\u00ednez",
      "M. J. Mora",
      "P. Pichot",
      "D. Roy",
      "Y. Schutz"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "doi": "10.1016/S0168-9002(00)01044-5",
    "journal_ref": "Nucl.Instrum.Meth.A459:502-512,2001",
    "title": "Two large-area anode-pad MICROMEGAS chambers as the basic elements of a   pre-shower detector",
    "url": "https://arxiv.org/abs/physics/0008003"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0c3ac95e-c50b-4e4e-a3f1-fa7e1bf011ec",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}