{
  "annotation_id": "cc8abebc-ab8a-4003-8759-b9767cc01fb7",
  "date_created": "2026-03-02T18:00:46.798000Z",
  "date_modified": "2026-03-02T18:00:46.798000Z",
  "file_hash": "48fce7dad29c08f84f00491e2fd6252f802e2c68b043bffc07b77c24c49f1093",
  "private": false,
  "record": {
    "abstract": "We have exposed seven full length production quality crystals of the\nelectromagnetic calorimeter (ECAL) of the CMS detector to a 20 GeV/c proton\nbeam at the CERN PS accelerator. The exposure was done at fluxes of 10**12\np/cm**2/h and 10**13 p/cm**2/h and integral fluences of 10**12 p/cm**2 and\n10**13 p/cm**2 were reached at both rates. The light transmission of the\ncrystals was measured after irradiation and suitable cooling time for induced\nradioactivity to decrease to a safe level. First results of these measurements\nare shown. The possible damage mechanisms are discussed and simulations based\non one possible model are presented. The implications for long-term operation\nof CMS are discussed and it is shown that in the whole barrel and at least most\nof the ECAL endcap hadron damage alone - even if cumulative - should not cause\nthe crystals to fail the CMS specification of an induced absorption coefficient\nmuIND \u003c 1.5 /m during the first 10 years of LHC operation.",
    "arxiv_id": "physics/0312056",
    "authors": [
      "M. Huhtinen",
      "P. Lecomte",
      "D. Luckey",
      "F. Nessi-Tedaldi"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "doi": "10.1142/9789812702708_0096",
    "title": "First results on radiation damage in PbWO4 crystals exposed to a 20   GeV/c proton beam",
    "url": "https://arxiv.org/abs/physics/0312056"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dbca0143-85ef-410a-9807-b871adfe638a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}