{
  "annotation_id": "9bd40573-fb70-4762-b6e7-a7f81e7a03e2",
  "date_created": "2026-03-02T18:01:14.681000Z",
  "date_modified": "2026-03-02T18:01:14.681000Z",
  "file_hash": "fa269477ad3966d9609d16b7167bd16f5253da1ff7e0aa4f7629693684d8f11d",
  "private": false,
  "record": {
    "abstract": "In the Brazilian synchrotron light source, we observed that modulating the\nphase of the accelerating fields at approximately twice the synchrotron\nfrequency suppressed remarkably well a longitudinal coupled-bunch mode of the\nbeam driven by a higher order mode (HOM) in one of the radiofrequency (RF)\ncavities. In this work, we present the results of a set of systematic\nmeasurements, in single and multibunch mode, aimed at characterizing the\neffects of RF phase modulation on the beam. We compare those experiments with\nthe results of tracking simulations and of a theoretical model in which Landau\ndamping is the stabilizing mechanism that explains the suppression of the\nlongitudinal coupled bunch instability. We also measure the frequency of the\nstable islands created in longitudinal phase space by phase modulation and the\nlongitudinal beam transfer function (BTF) as a function of the modulation\nfrequency and amplitude. The experimental results are in good agreement with\ntheoretical expectations.",
    "arxiv_id": "physics/0610083",
    "authors": [
      "N. P. Abreu",
      "P. F. Tavares",
      "R. H. A. Farias"
    ],
    "categories": [
      "physics.acc-ph"
    ],
    "doi": "10.1103/PhysRevSTAB.9.1433",
    "journal_ref": "Phys.Rev.ST Accel.Beams 9:1433,2006",
    "title": "Longitudinal dynamics with RF phase modulation in the LNLS electron   storage ring",
    "url": "https://arxiv.org/abs/physics/0610083"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "14d9833d-1cd0-41cd-b973-b0dd94f2a335",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}