{
  "abstract": "The development of compact and intense $γ$-ray sources in the MeV energy range remains a significant frontier in radiation physics, with profound implications for nuclear physics, medicine and applied science. In this work, we present a comprehensive numerical investigation of the photon emission probability and brilliance of a Crystalline Undulator (CU) based on a periodically bent Si(110) crystal. Our approach integrates realistic deformation profiles obtained via Finite Element Method simulations of a realistic sample, where bending is induced by patterned Si$_3$N$_4$ surface stressors. Relativistic molecular dynamics simulations, performed using the MBN Explorer software package, consider a 10 GeV positron beam consistent with the foreseen FACET-II facility specifications. Our results reveal a distinct undulator radiation peak in the 1.6-2.1 MeV range, well-separated from the broader channeling radiation background. We show that for an optimal aperture angle of $1/2γ$, the source reaches a maximum peak brilliance of about $5\\times10^{22}$~photons/s/mm$^2$/mrad$^2$/0.1\\%~BW. This performance is highly competitive with large-scale Gamma-Beam Systems and exceeds that of Inverse-Compton Scattering sources, confirming the potential of crystalline undulators as high-brilliance, compact light sources for the MeV domain.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.15101",
  "author_total": 14,
  "authors": [
    {
      "name": "R. Negrello"
    },
    {
      "name": "L. Malagutti"
    },
    {
      "name": "L. Bandiera"
    },
    {
      "name": "N. Canale"
    },
    {
      "name": "F. Cescato"
    },
    {
      "name": "P. Fedeli"
    },
    {
      "name": "V. Guidi"
    },
    {
      "name": "A. Mazzolari"
    },
    {
      "name": "G. Paternó"
    },
    {
      "name": "J. Reyes Garrido"
    },
    {
      "name": "M. Romagnoni"
    },
    {
      "name": "A. Sytov"
    },
    {
      "name": "A. V. Korol"
    },
    {
      "name": "A. V. Solov'yov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4t60v9j04n8sa.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.15101",
  "fulltext_url": null,
  "id": "4t60v9j04n8sa",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.15101",
  "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.acc-ph"
    ],
    [
      "openalex",
      "3104|Crystallography and Radiation Phenomena"
    ]
  ],
  "openalex": "W7213358317",
  "pdf_url": "https://arxiv.org/pdf/2609.15101",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4t60v9j04n8sa.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:25Z",
      "native_id": "2609.15101",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.15101"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.acc-ph",
      "subfield": "applied-instrumentation"
    }
  ],
  "title": "High-Intense Gamma-Ray Emission from a Crystalline Undulator with Realistic Bending Profiles",
  "title_text": "High-Intense Gamma-Ray Emission from a Crystalline Undulator with Realistic Bending Profiles",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:25Z",
  "url": "https://research.draconitic.com/paper/4t60v9j04n8sa",
  "venue": "arXiv",
  "versions": []
}