{
  "annotation_id": "69df2e89-3725-4a7e-8947-dff1b85ddb41",
  "date_created": "2026-03-02T18:00:32.649000Z",
  "date_modified": "2026-03-02T18:00:32.649000Z",
  "file_hash": "7d72be12adcc7798ffecb3538101ba45663c569a05bacdd066bae99c409df443",
  "private": false,
  "record": {
    "abstract": "The lattice for the present design of the TESLA Linear Collider with\nintegrated X-Ray Laser Facility is basically a FODO structure with constant\nbeta-function. There are more than 800 individually powered superconducting\nquadrupoles to focus the beam in the two main linear accelerators (each with a\nlength of 15 km). For the availability of the beams it is important that a\npower supply failure or even a magnet failure does not cause a significant down\ntime of the linac. It is demonstrated that the beta-function can be matched\nwith a quadrupole \"missing\". One part of the main linac (up-to 50 GeV) will be\nused to accelerate the High Energy Physics beam and the Free Electron Laser\ndrive beam with different accelerating gradients. Therefore the betatron phase\nadvance will be 60 deg. or 90 deg. depending on the beam energy. It is shown\nthat even in that case it is possible to match the lattice simultaneously for\nboth beams with a quadrupole missing.",
    "arxiv_id": "physics/0007061",
    "authors": [
      "Rainer Wanzenberg"
    ],
    "categories": [
      "physics.acc-ph"
    ],
    "journal_ref": "eConf C000821 (2000) MOE07",
    "title": "Lattice Matching with a Quadrupole Missing",
    "url": "https://arxiv.org/abs/physics/0007061"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3fc8667e-c05e-431f-905c-a76c0dc772a5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}