{
  "annotation_id": "49acbef9-78d1-4101-a334-e2e28b6b2bc9",
  "date_created": "2026-03-02T18:00:32.935000Z",
  "date_modified": "2026-03-02T18:00:32.935000Z",
  "file_hash": "d082a9cb19cfec88b815724ac3405df824c2f9c05234dd9321b3a40635ece985",
  "private": false,
  "record": {
    "abstract": "The wire scanners are used for a measurement of the very small beam size and\nthe emittance in Accelerator Test Facility (ATF). They are installed in the\nextraction beam line of ATF damping ring. The extracted beam emittance are\nex=1.3x10-9 m.rad, ey=1.7x10-11 m.rad with 2x109 electrons/bunch intensity and\n1.3GeV energy. The wire scanners scan the beam by a tungsten wire with beam\nrepetition 0.78Hz. The scanning speed is, however, very slow(~500um/sec). Since\nthe extracted beam is quite stable by using the double kicker system, precision\nof the size measurement is less than 2um for 50 - 150um horizontal beam size\nand 0.3um for 8 - 16um vertical beam size. The detail of the system and the\nperformance are described.",
    "arxiv_id": "physics/0008084",
    "authors": [
      "H. Hayano"
    ],
    "categories": [
      "physics.acc-ph"
    ],
    "journal_ref": "eConf C000821 (2000) MOc01",
    "title": "Wire Scanners for Small Emittance Beam Measurement in Atf",
    "url": "https://arxiv.org/abs/physics/0008084"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7ed2d1a1-a2d8-45f7-8d44-6bccb4d27af7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}