{
  "annotation_id": "e3949b38-d09b-4b2b-a72c-11be7d350372",
  "date_created": "2026-03-02T18:01:14.826000Z",
  "date_modified": "2026-03-02T18:01:14.826000Z",
  "file_hash": "02543f6f31503ceefff472a2d9d1337a2ed532667050e78e79df67403507d19e",
  "private": false,
  "record": {
    "abstract": "Measurements with low Z targets at internal experiments typically imply a gas\nload which deteriorates the ring vacuum. Future experiments need reliable\nestimates for the expected vacuum conditions in order to design 4-pi detectors\nclosely surrounding the interaction area.\n  We present a method for the calculation of the resulting vacuum of such a\ncomplex system using a Pellet Target. In order to test the method, a vacuum\nsystem with diagnostic tools has been set up and a Pellet Target was operated\nunder realistic conditions. The results for the absolute vacuum agree within\nfactors of two with the expected pressures.",
    "arxiv_id": "physics/0701049",
    "authors": [
      "Inti Lehmann",
      "Orjan Nordhage",
      "Carl-Johan Friden",
      "Gunar Norman",
      "Curt Ekstrom",
      "Tord Johansson",
      "Ulrich Wiedner"
    ],
    "categories": [
      "physics.ins-det",
      "nucl-ex",
      "physics.acc-ph"
    ],
    "doi": "10.1016/j.vacuum.2007.10.005",
    "journal_ref": "Vacuum82:645-650,2008",
    "title": "Vacuum Predictions and Measurements for an Internal Pellet Target",
    "url": "https://arxiv.org/abs/physics/0701049"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5273e7b7-0de9-4e5f-957f-581006f19ad3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}