{
  "abstract": "Background: Quantitative Cherenkov-to-dose conversion depends on beam spectrum, field size, depth, and material properties. Purpose: To distinguish dose contributions with and without accompanying Cherenkov production and assess their implications for calibration. Methods: Geant4 simulations paired dose and local Cherenkov distributions in water for flattened 6, 10, and 15 MV and flattening-filter-free (FFF) 6 and 10 MV beams with $3 \\times 3$ and $10 \\times 10$ cm$^2$ fields. Energy deposition was tagged by whether its transport step produced at least one Cherenkov photon. Component fractions were calculated over the phantom. Distributions were independently normalized within a shared reference region and compared using voxelwise ratios, lateral profiles, and spatial partitioning. Results: Emission-tagged fractions were 37%-61%, increasing with beam energy and lower for FFF beams. Fractions differed by less than 1.3 percentage points between field sizes. Emission-tagged ratios clustered near unity, with 98.4%-99.9% between 0.95 and 1.05 across the evaluated regions, whereas total and non-emission-tagged ratios varied with depth and lateral position. Emission-tagged profiles generally showed smaller residual differences. Conclusions: Emission-tagged deposition closely tracked local Cherenkov production. Departures of the total Cherenkov-to-dose ratio followed spatial variations in the emission-tagged dose fraction, indicating where calibration needs correction. The classification reflects actual photon production and depends on transport settings; dedicated electron-energy scoring is needed to isolate sub-threshold contributions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.05700",
  "author_total": 7,
  "authors": [
    {
      "name": "Xianghuan He"
    },
    {
      "name": "Yao Hao"
    },
    {
      "name": "Changyu Sun"
    },
    {
      "name": "Andy N. Wiles"
    },
    {
      "name": "Gregory B. Biedermann"
    },
    {
      "name": "Brian W. Pogue"
    },
    {
      "name": "Rongxiao Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/24npr1bbvhwg2.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.05700",
  "fulltext_url": null,
  "id": "24npr1bbvhwg2",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.05700",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.med-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.05700",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/24npr1bbvhwg2.ris",
  "sources": [
    {
      "first_seen": "2026-11-05T15:20:56Z",
      "native_id": "2611.05700",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.05700"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.med-ph",
      "subfield": "biological-medical"
    }
  ],
  "title": "Emission-associated energy deposition and Cherenkov-dose proportionality in megavoltage photon beams",
  "title_text": "Emission-associated energy deposition and Cherenkov-dose proportionality in megavoltage photon beams",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:19Z",
  "url": "https://research.draconitic.com/paper/24npr1bbvhwg2",
  "venue": "arXiv",
  "versions": []
}