{
  "annotation_id": "53ade42a-d7a2-4b1c-a28b-a520b5d58938",
  "date_created": "2026-03-02T18:00:29.225000Z",
  "date_modified": "2026-03-02T18:00:29.225000Z",
  "file_hash": "562db99da87afbba2a835fcd93de55f37d432429ad35947ec179cdbc9854fbed",
  "private": false,
  "record": {
    "abstract": "One of the main sources of a background in underground physics experiments\n(such as the investigation of solar neutrino flux, neutrino oscillations,\nneutrinoless double beta decay, and the search for annual and daily Cold Dark\nMatter particle flux modulation) are fast neutrons originating from the\nsurrounding rocks. The measurements of fast neutron flux in the new DULB\nLaboratory situated at a depth of 4900 m w.e. in the Baksan Neutrino\nObservatory have been performed. The relative neutron shielding properties of\nseveral commonly available natural materials were investigated too. The\npreliminary results obtained with a high-sensitive fast neutron spectrometer at\nthe level of sensitivity of about 10^(-7) neutron/ (cm^2 sec) are presented and\ndiscussed.",
    "arxiv_id": "physics/0001007",
    "authors": [
      "J. N. Abdurashitov",
      "V. N. Gavrin",
      "A. V. Kalikhov",
      "A. A. Shikhin",
      "V. E. Yants",
      "O. S. Zaborskaya",
      "A. A. Klimenko",
      "S. B. Osetrov",
      "A. A. Smolnikov",
      "S. I. Vasiliev"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "title": "The preliminary results of fast neutron flux measurements in the DULB   laboratory at Baksan",
    "url": "https://arxiv.org/abs/physics/0001007"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c316809a-c8b4-48ae-84c3-c5866c184186",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}