{
  "annotation_id": "7226b642-2ff5-4a55-b27f-841c2cc1e5a9",
  "date_created": "2026-03-02T18:00:50.494000Z",
  "date_modified": "2026-03-02T18:00:50.494000Z",
  "file_hash": "10fc505c2f9c104911606b1b0efcf76e400eaf2b8c6234d701b6ad805ab1ff31",
  "private": false,
  "record": {
    "abstract": "Absorption imaging and spectroscopy can probe the dynamics of an ultracold\nneutral plasma during the first few microseconds after its creation.\nQuantitative analysis of the data, however, is complicated by the inhomogeneous\ndensity distribution, expansion of the plasma, and possible lack of global\nthermal equilibrium for the ions. In this article we describe methods for\naddressing these issues. Using simple assumptions about the underlying\ntemperature distribution and ion motion, the Doppler-broadened absorption\nspectrum obtained from plasma images can be related to the average temperature\nin the plasma.",
    "arxiv_id": "physics/0407138",
    "authors": [
      "T. C. Killian",
      "Y. C. Chen",
      "P. Gupta",
      "S. Laha",
      "Y. N. Martinez",
      "P. G. Mickelson",
      "S. B. Nagel",
      "A. D. Saenz",
      "C. E. Simien"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.plasm-ph"
    ],
    "doi": "10.1088/0953-4075/38/2/026",
    "title": "Absorption Imaging and Spectroscopy of Ultracold Neutral Plasmas",
    "url": "https://arxiv.org/abs/physics/0407138"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7b76e263-a9d0-48aa-97e1-a64d321c4f43",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}