{
  "annotation_id": "f9e672e1-189b-4233-aae6-b6e97f77bf42",
  "date_created": "2026-03-02T18:01:18.445000Z",
  "date_modified": "2026-03-02T18:01:18.445000Z",
  "file_hash": "f263feb84a34cf581ee48187d3b98225d65466f97b26c4e2522eb96b7e3ab0f5",
  "private": false,
  "record": {
    "abstract": "We describe the characteristics of low-cost ultra-high-power light emitting\ndiodes (LEDs) for use in optical imaging experiments. We use the LEDs in\nexperiments with bullfrog cardiac tissue and find that the signal-to-noise\nratio is comparable to other commonly used illumination sources.",
    "arxiv_id": "physics/0702241",
    "authors": [
      "H. M. Dobrovolny",
      "H. Elmariah",
      "S. S. Kalb",
      "J. P. Wikswo, Jr.",
      "D. J. Gauthier"
    ],
    "categories": [
      "physics.bio-ph",
      "physics.ins-det",
      "physics.med-ph"
    ],
    "title": "Imaging cardiac dynamics using low-cost ultra-high-power light emitting   diodes and voltage-sensitive dyes",
    "url": "https://arxiv.org/abs/physics/0702241"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "02fbc656-9bf5-4046-b203-f302297d64c6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}