{
  "annotation_id": "6814d1de-9aa0-4e05-ab47-d18eb19b33fe",
  "date_created": "2026-03-02T18:00:46.169000Z",
  "date_modified": "2026-03-02T18:00:46.169000Z",
  "file_hash": "1d243b4dfb1cf05c24caacc683df2cbc4e81c466ed85df28e80481303a4863c9",
  "private": false,
  "record": {
    "abstract": "Results obtained with a triple GEM detector operated in pure CF4 with and\nwithout a reflective CsI photocathode are presented. The detector operates in a\nstable mode at gains up to 10^4. A deviation from exponential growth starts to\ndevelop when the total charge exceeds ~ 4 10^6 e leading to gain saturation\nwhen the total charge is ~ 2 10^7 e and making the structure relatively robust\nagainst discharges. No aging effects are observed in the GEM foils after a\ntotal accumulated charge of ~ 10 mC/cm^2 at the anode. The ion back-flow\ncurrent to the reflective photocathode is comparable to the electron current to\nthe anode. However, no significant degradation of the CsI photocathode is\nobserved for a total ion back-flow charge of ~ 7 mC/cm^2.",
    "arxiv_id": "physics/0309013",
    "authors": [
      "A. Kozlov",
      "I. Ravinovich",
      "L. Shekhtman",
      "Z. Fraenkel",
      "M. Inuzuka",
      "I. Tserruya"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "doi": "10.1016/j.nima.2003.12.018",
    "journal_ref": "Nucl.Instrum.Meth. A523 (2004) 345-354",
    "title": "Development of a triple GEM UV-photon detector operated in pure CF4 for   the PHENIX experiment",
    "url": "https://arxiv.org/abs/physics/0309013"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b0a6aad5-c288-411e-a417-fb381c9c51ed",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}