{
  "annotation_id": "abb280a6-2987-4eb7-b360-db4a3216dbb8",
  "date_created": "2026-03-02T18:00:32.555000Z",
  "date_modified": "2026-03-02T18:00:32.555000Z",
  "file_hash": "2a3600daecd74dfdaa2f4a0de952459194dd6683f40eed02a800302c9ba65ad8",
  "private": false,
  "record": {
    "abstract": "In damping the wakefield generated by an electron beam traversing several\nthousand X-band linacs in the NLC we utilise a Gaussian frequency distribution\nof dipole modes to force the modes to deconstructively interfere, supplemented\nwith moderate damping achieved by coupling these modes to four attached\nmanifolds. Most of these modes are adequately damped by the manifolds. However,\nthe modes towards the high frequency end of the lower dipole band are not\nadequately damped because the last few cells are, due to mechanical fabrication\nrequirements, not coupled to the manifolds. To mitigate this problem in the\npresent RDDS1 design, the output coupler for the accelerating mode has been\ndesigned so as to also couple out those dipole modes which reach the output\ncoupler cell. In order to couple out both dipole mode polarizations, the output\ncoupler has four ports. We also report on the results of a study of the\nbenefits which can be achieved by supplementing manifold damping with local\ndamping for a limited number of cells at the downstream end of the structure.",
    "arxiv_id": "physics/0008211",
    "authors": [
      "R. M. Jones",
      "N. M. Kroll",
      "R. H. Miller",
      "C. K. Ng",
      "J. W. Wang"
    ],
    "categories": [
      "physics.acc-ph"
    ],
    "journal_ref": "eConf C000821:TUA09,2000",
    "title": "Local and Fundamental Mode Coupler Damping of the Transverse Wakefield   in RDDS1 Linacs",
    "url": "https://arxiv.org/abs/physics/0008211"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "37384855-13b1-4f9a-8b6d-5cbf777f11ff",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}