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<p>This systematic review, carried out under the PRISMA 2020 protocol, examines the physical principles, calibration approaches and dosimetric frameworks that underpin the use of LR-115 type II passive nuclear track detectors for indoor radon-222 and thoron-220 measurement. Out of 847 records retrieved from five bibliographic databases and complementary institutional sources, 62 publications were included in the final synthesis. Twin-chamber configurations, etching kinetics, reported calibration factors and the UNSCEAR and ICRP dose conversion coefficients are critically compared. Twin-cup LR-115 dosimeters paired with traceable calibration emerge as a sound compromise between cost, sensitivity and radon/thoron discrimination for large residential surveys.</p>

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LR-115 passive nuclear track detectors for indoor radon-222 and thoron-220 concentration estimation: a systematic review (PRISMA) of physical foundations, calibration methodologies and dosimetric frameworks

  • 期刊论文

  • 发表日期：

    2026年7月29日

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  • Marcel Oswaldo Méndez-Mantuano,
  • Tony Jesús Viloria-Ávila

摘要

This systematic review, carried out under the PRISMA 2020 protocol, examines the physical principles, calibration approaches and dosimetric frameworks that underpin the use of LR-115 type II passive nuclear track detectors for indoor radon-222 and thoron-220 measurement. Out of 847 records retrieved from five bibliographic databases and complementary institutional sources, 62 publications were included in the final synthesis. Twin-chamber configurations, etching kinetics, reported calibration factors and the UNSCEAR and ICRP dose conversion coefficients are critically compared. Twin-cup LR-115 dosimeters paired with traceable calibration emerge as a sound compromise between cost, sensitivity and radon/thoron discrimination for large residential surveys.