{
  "abstract": "The Cr$_2$O$_3$ solid target for low-energy $^{16}$O+$^{16}$O fusion experiments was fabricated using filtered cathodic vacuum arc (FCVA) deposition. Its composition, oxygen areal density and impurity content were characterized by elastic backscattering spectrometry (EBS), and the impurity-induced background contributions were investigated by in-beam $γ$-ray spectroscopy. EBS results indicate that the Cr$_2$O$_3$ film exhibits good stoichiometry and uniformity, with $^{16}$O areal densities ranging from $(3.24-3.25)\\times10^{17}$ atoms/cm$^2$. The EBS analysis reveals a carbon atomic fraction of approximately 1.25-1.29\\% in the Cr$_2$O$_3$ layer, while a large amount of carbon impurities are also identified on the surface of Cr substrate. In-beam $γ$-ray spectra reveal prominent transitions associated with $^{27}$Al and $^{24}$Mg at 844, 1015, and 1369 keV, mainly originating from $^{12}$C+$^{16}$O fusion reactions induced by carbon impurities under $^{16}$O irradiation. Meanwhile, characteristic $γ$-rays emissions from evaporation channels of the $^{16}$O+$^{16}$O reaction, including $^{31}$S, $^{31}$P, and $^{28}$Si, were also observed and can be used to extract the $^{16}$O+$^{16}$O fusion cross sections. This work provides an experimental basis for the development of high-purity oxide targets and the optimization of target configurations for future low-background $^{16}$O+$^{16}$O fusion cross section measurements.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.06148",
  "author_total": 25,
  "authors": [
    {
      "name": "C. Wen"
    },
    {
      "name": "X. Chen"
    },
    {
      "name": "L. Wang"
    },
    {
      "name": "Z. An"
    },
    {
      "name": "F. Bai"
    },
    {
      "name": "Y. Chen"
    },
    {
      "name": "X. Fang"
    },
    {
      "name": "Y. X. Fan"
    },
    {
      "name": "B. S. Gao"
    },
    {
      "name": "Z. Y. Guo"
    },
    {
      "name": "J. F. Han"
    },
    {
      "name": "H. T. Hu"
    },
    {
      "name": "W. P. Lin"
    },
    {
      "name": "B. Liao"
    },
    {
      "name": "S. Lin"
    },
    {
      "name": "G. Liu"
    },
    {
      "name": "X. Q. Liu"
    },
    {
      "name": "P. P. Ren"
    },
    {
      "name": "J. Su"
    },
    {
      "name": "J. H. Tan"
    },
    {
      "name": "X. D. Tang"
    },
    {
      "name": "P. Wang"
    },
    {
      "name": "S. Wang"
    },
    {
      "name": "D. H. Xie"
    },
    {
      "name": "N. T. Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7k0psec8ep4m2.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.06148",
  "fulltext_url": null,
  "id": "7k0psec8ep4m2",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.06148",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "nucl-ex"
    ],
    [
      "arxiv",
      "physics.ins-det"
    ],
    [
      "openalex",
      "3106|Nuclear physics research studies"
    ]
  ],
  "openalex": "W7212072345",
  "pdf_url": "https://arxiv.org/pdf/2609.06148",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7k0psec8ep4m2.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2609.06148",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.06148"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.ins-det",
      "subfield": "applied-instrumentation"
    },
    {
      "field": "physics",
      "origin": "arxiv:nucl-ex",
      "subfield": "nuclear"
    }
  ],
  "title": "EBS and in-beam $γ$-ray investigation of FCVA-prepared Cr$_2$O$_3$ targets for low-energy $^{16}$O+$^{16}$O fusion experiments",
  "title_text": "EBS and in-beam γ-ray investigation of FCVA-prepared Cr_2O_3 targets for low-energy ^16O+^16O fusion experiments",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:48Z",
  "url": "https://research.draconitic.com/paper/7k0psec8ep4m2",
  "venue": "arXiv",
  "versions": []
}