{
  "abstract": "The evolution of High Energy Physics (HEP) toward future collider experiments with High Luminosity (HL), such as the HL-LHC, requires the development of scintillating materials that combine high density, excellent radiation hardness and an ultrafast response. While Cerium-doped Gadolinium Aluminum Gallium Garnet (GAGG:Ce) offers a very high light yield and resilience to irradiation, its typical decay time of approximately 50-60 ns may lead to pile-up effects in high-rate environments. In this paper, we report on the development and multi-stage characterization of various accelerated GAGG compositions optimized for timing performance and grown by Crytur. By taking advantage of divalent co-doping to engineer the scintillation kinetics, we achieved an effective decay time (tau_d,eff) down to 5.5 ns while maintaining a competitive light yield of several thousand photons per MeV. Laboratory characterization demonstrates that the time resolution under gamma-ray excitation is comparable to commercial GAGG, while the time resolution measured with 120 GeV pions reaches performance levels comparable to state-of-the-art LYSO:Ce,Ca. After a 1 MGy proton irradiation campaign the material retains most of its optical transmission. The results confirm that this ultrafast GAGG composition is a viable candidate for the next generation of HEP calorimetry and timing detectors.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.10116",
  "author_total": 12,
  "authors": [
    {
      "name": "Louis Roux"
    },
    {
      "name": "Loris Martinazzoli"
    },
    {
      "name": "Julie Delenne"
    },
    {
      "name": "Philipp Roloff"
    },
    {
      "name": "Ondřej Zapadlík"
    },
    {
      "name": "Jan Polak"
    },
    {
      "name": "Jan Havlíček"
    },
    {
      "name": "Silvia Sýkorová"
    },
    {
      "name": "Martin Nikl"
    },
    {
      "name": "Pavel Boháček"
    },
    {
      "name": "Christophe Dujardin"
    },
    {
      "name": "Etiennette Auffray"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0m88bz1q93rtb.bib",
  "cited_by": 0,
  "doi": "10.1016/j.nima.2026.172102",
  "fulltext_url": null,
  "id": "0m88bz1q93rtb",
  "issns": [],
  "landing_url": "https://hal.science/hal-05759386v1",
  "language": "en",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.ins-det"
    ],
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.phys"
    ],
    [
      "hal",
      "2.phys.phys.phys-ins-det"
    ],
    [
      "openalex",
      "3108|Radiation Detection and Scintillator Technologies"
    ]
  ],
  "openalex": "W7212110319",
  "pdf_url": "https://arxiv.org/pdf/2609.10116",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0m88bz1q93rtb.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:37Z",
      "native_id": "hal-05759386",
      "source": "hal",
      "url": "https://hal.science/hal-05759386v1"
    },
    {
      "first_seen": "2026-10-30T12:20:12Z",
      "native_id": "2609.10116",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.10116"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.ins-det",
      "subfield": "applied-instrumentation"
    }
  ],
  "title": "Development of Ultrafast and Radiation-Hard GAGG for the Next-Generation of High-Energy Physics Calorimeters",
  "title_text": "Development of Ultrafast and Radiation-Hard GAGG for the Next-Generation of High-Energy Physics Calorimeters",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:20:12Z",
  "url": "https://research.draconitic.com/paper/0m88bz1q93rtb",
  "venue": "Nucl.Instrum.Meth.A",
  "versions": []
}