zhpsЖурнал прикладной спектроскопииZhurnal Prikladnoii Spektroskopii0514-7506B. I. Stepanov Institute of Physics of the National Academy of Scienceszhps-2166Research ArticleАННОТАЦИИ АНГЛОЯЗЫЧНЫХ СТАТЕЙABSTRACTS ENGLISH-LANGUAGE ARTICLESМассовый элементный анализ зубной эмали методами затухания низкоэнергетических фотонов и гамма-спектрометрииBulk Elemental Analysis of Human Teeth Using Low-Energy Photon Attenuation and Gamma-Ray SpectrometryMostafaO. M.MostafaO. M.

Медицинский колледж.

Ханчжоу

Omar Medhat Mostafa - Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University.

Hangzhou

MedhatM. E.MedhatM. E.

Центр ядерных исследований (НИЦ).

Каир

Experimental Nuclear Physics Department, Nuclear Research Center (NRC), Egyptian Atomic Energy Authority (EAEA).

Cairo

medhatme@ymail.comЧжэцзянский университетZhejiang UniversityЕгипетское управление по атомной энергии (ЕАГЭ)Egyptian Atomic Energy Authority (EAEA)20263003202693228910Copyright © Mostafa O.M., Medhat M.E., 20262026Mostafa O.M., Medhat M.E.Mostafa O.M., Medhat M.E.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://zhps.ejournal.by/jour/article/view/2166

Представлена аналитическая методика количественного определения элементного состава образцов зубов с использованием ослабления низкоэнергетических фотонов в диапазоне 10–150 кэВ. Метод основан на сильной зависимости фотоэлектрического эффекта от атомного номера (Z), что позволяет точно идентифицировать и количественно определять основные компоненты (Ca, P) и микроэлементы (Na, Mg). Образцы зубов людей различных демографических групп проанализированы с помощью ϒ-спектрометра на основе высокочистого германия (HPGe), настроенного на высокое энергетическое разрешение при низких энергиях фотонов. Экспериментальные коэффициенты массового ослабления подтверждены как моделированием методом Монте-Карло в Geant4, так и базой данных XCOM. Продемонстрировано хорошее соответствие с отклонениями ≤5%. Методика обладает явными преимуществами по сравнению с чувствительными к поверхности методами получения усредненных данных об элементном составе.

We present an analytical technique for quantifying the elemental composition of human teeth using low-energy photon attenuation in the 10–150 keV range. The method leverages the strong atomic number (Z) dependence of the photoelectric effect, facilitating the precise identification and quantification of major constituents (e.g., Ca, P) and trace elements (e.g., Na, Mg). Dental samples, representing demographic groups from children to elderly individuals, were analyzed using a high-purity germanium (HPGe) ϒ-ray spectrometer, configured for high energy resolution at low photon energies. Experimental mass attenuation coefficients were validated against both Geant4 Monte Carlo simulations and the XCOM database, demonstrating strong agreement with deviations consistently below 5%. The technique offers distinct advantages over surface-sensitive methods for obtaining depth-averaged compositional data.

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The authors declare that there are no conflicts of interest present.