{
  "abstract": "We propose a Multi-Resonant Double-barrier Quantum-dot-in-a-Well (MR-DWELL) dosimeter with a tunable trade-off between sensitivity and radiation tolerance, realized through graphene-assisted electrostatic screening. The sensing mechanism relies on radiation-induced trapped charge that shifts and broadens resonant tunneling states in the DWELL heterostructure. The~dimensionless capacitance ratio $η=C_Q/C_{\\mathrm{geo}}$ is introduced as the universal design parameter: it~controls the screening factor $S=η/(1+η)$ and thereby the trade-off between sensitivity and radiation hardness. For $η=2.09$ the effective low-dose shift coefficient is reduced threefold (from $0.14$~to $0.045~\\mathrm{meV/mGy}$), while the screened architecture retains $\\sim\\!83\\%$ of the peak tunneling current and a peak-to-valley ratio $\\sim\\!10$ after $1~\\mathrm{MGy}$, thereby preserving the dosimetric sensitivity required for practical readout. The~second-derivative spectroscopy $d^2I/dV^2$ is identified as a robust experimental readout. A~reduced-order Landauer model calibrated against literature data is employed for the screening physics, while a self-consistent NEGF-Poisson-trap framework is formulated for future quantitative validation. Explicit design rules for three operating regimes (high sensitivity, balanced, maximum hardness) are provided, together with a three-population trap model that conceptually enables dose-rate discrimination in the FLASH radiotherapy regime. A~comparative analysis of model vintages and their methodological foundations is included to guide interpretation of numerical predictions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.06616",
  "author_total": 2,
  "authors": [
    {
      "name": "Bigul U. Dosymova"
    },
    {
      "name": "Mikhail V. Dolgopolov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8ap3rg0gbaad7.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.06616",
  "fulltext_url": null,
  "id": "8ap3rg0gbaad7",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.06616",
  "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",
      "math-ph"
    ],
    [
      "arxiv",
      "math.MP"
    ],
    [
      "openalex",
      "2208|Radiation Effects in Electronics"
    ]
  ],
  "openalex": "W7202113709",
  "pdf_url": "https://arxiv.org/pdf/2608.06616",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8ap3rg0gbaad7.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2608.06616",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.06616"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math-ph",
      "subfield": "mathematical-physics"
    }
  ],
  "title": "Graphene-Assisted Electrostatic Screening of Resonant Transport in MR-DWELL Dosimeters with Tunable Sensitivity--Radiation Tolerance Trade-off: A Reduced-Order Benchmark and Self-Consistent Perspective",
  "title_text": "Graphene-Assisted Electrostatic Screening of Resonant Transport in MR-DWELL Dosimeters with Tunable Sensitivity--Radiation Tolerance Trade-off: A Reduced-Order Benchmark and Self-Consistent Perspective",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:57Z",
  "url": "https://research.draconitic.com/paper/8ap3rg0gbaad7",
  "venue": "arXiv",
  "versions": []
}