{
  "abstract": "In this study, the temporal behavior and compensation of time-of-flight (TOF) drift during long-duration depth profiling using Laser Ionization Mass Nanoscope (LIMAS) were investigated. Noble gas depth profiling by LIMAS requires detection of weak isotope signals with nanometer-scale depth resolution. However, such measurements often take several hours to a couple of days, during which TOF peak-position drift and statistical uncertainty may affect analytical precision. In this study, a 4He-implanted olivine substrate was analyzed as a test sample. The TOF spectra were processed by depth-layer stacking, peak extraction, and peak-position analysis. The 24Mg2+ peak was used as a matrix-derived internal reference to monitor and compensate for TOF drift. The peak-position shifts of measured ions showed clear linear correlations with the 24Mg2+ peak shift, indicating that the observed TOF drift is largely systematic. A 24Mg2+-based compensation reduced the peak-position fluctuations of the other ion species to less than 1 ns and improved the mass resolving power. These results demonstrate that the 24Mg2+ peak can be used as an internal reference for TOF drift compensation during long-duration measurements, providing a robust approach for micro- to nanoscale noble gas depth profiling using LIMAS.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University, Sapporo 060–0810, Japan"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Ken-ichi Bajo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/f6pdhsfj6338w.bib",
  "cited_by": 0,
  "doi": "10.5702/massspectrometry.a0201",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13730639/",
  "id": "f6pdhsfj6338w",
  "issns": [
    "2187-137X",
    "2186-5116"
  ],
  "landing_url": "https://doi.org/10.5702/massspectrometry.a0201",
  "language": "en",
  "licence": "CC-BY-NC-4.0",
  "licence_label": "CC BY-NC 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Original Article"
    ],
    [
      "openalex",
      "2508|Ion-surface interactions and analysis"
    ]
  ],
  "openalex": "W7214970066",
  "pdf_url": "https://www.jstage.jst.go.jp/article/massspectrometry/advpub/0/advpub_A0201/_pdf",
  "pmcid": "PMC13730639",
  "pmid": "42979638",
  "published": "2026-10-30",
  "publisher": "Mass Spectrometry Society of Japan",
  "ris": "https://research.draconitic.com/paper/f6pdhsfj6338w.ris",
  "sources": [
    {
      "first_seen": "2026-11-07T12:23:09Z",
      "native_id": "PMC13730639",
      "source": "pmc",
      "url": "https://doi.org/10.5702/massspectrometry.a0201"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2508|Ion-surface interactions and analysis",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Compensation of Time-of-Flight Drift Using an Internal Reference Ion during Long-Duration LIMAS Depth Profiling",
  "title_text": "Compensation of Time-of-Flight Drift Using an Internal Reference Ion during Long-Duration LIMAS Depth Profiling",
  "type": "peer-reviewed",
  "updated_at": "2026-11-07T12:23:09Z",
  "url": "https://research.draconitic.com/paper/f6pdhsfj6338w",
  "venue": "Mass Spectrometry",
  "versions": []
}