{
  "annotation_id": "b6a92b2b-6a98-45f7-988b-d41813970c1d",
  "date_created": "2026-03-02T18:01:18.188000Z",
  "date_modified": "2026-03-02T18:01:18.188000Z",
  "file_hash": "be54c2816e04359f4b60342ece0d91f6954d9a564368ac380622504993c5e898",
  "private": false,
  "record": {
    "abstract": "We present a method for producing sub-100 fs electron bunches that are\nsuitable for single-shot ultrafast electron diffraction experiments in the 100\nkeV energy range. A combination of analytical results and state-of-the-art\nnumerical simulations show that it is possible to create 100 keV, 0.1 pC, 20 fs\nelectron bunches with a spotsize smaller than 500 micron and a transverse\ncoherence length of 3 nm, using established technologies in a table-top set-up.\nThe system operates in the space-charge dominated regime to produce\nenergy-correlated bunches that are recompressed by established radio-frequency\ntechniques. With this approach we overcome the Coulomb expansion of the bunch,\nproviding an entirely new ultrafast electron diffraction source concept.",
    "arxiv_id": "physics/0702018",
    "authors": [
      "T. van Oudheusden",
      "E. F. de Jong",
      "B. J. Siwick",
      "S. B. van der Geer",
      "W. P. E. M. Op \u0027t Root",
      "O. J. Luiten"
    ],
    "categories": [
      "physics.acc-ph"
    ],
    "doi": "10.1063/1.2801027",
    "title": "New electron source concept for single-shot sub-100 fs electron   diffraction in the 100 keV range",
    "url": "https://arxiv.org/abs/physics/0702018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9b83250e-1621-435b-8485-8b3e14d4792b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}