Počet záznamů: 1  

Effect of gamma radiation on thermostimulated exoelectron emission from Gd.sub.2./sub.O.sub.3./sub. films

  1. 1.
    0535244 - FZÚ 2021 RIV NL eng J - Článek v odborném periodiku
    Romanova, M. - Burve, R. - Cichoň, Stanislav - Dekhtyar, Y. - Fekete, Ladislav - Jevdokimovs, D. - Krumina, A. - Palskis, K. - Serga, V.
    Effect of gamma radiation on thermostimulated exoelectron emission from Gd2O3 films.
    Nuclear Instruments & Methods in Physics Research Section B. Roč. 463, Jan (2020), s. 21-26. ISSN 0168-583X. E-ISSN 1872-9584
    Institucionální podpora: RVO:68378271
    Klíčová slova: dosimetry * exoelectron emission * gadolinium oxide * gamma radiation
    Obor OECD: Physical chemistry
    Impakt faktor: 1.377, rok: 2020
    Způsob publikování: Omezený přístup
    https://doi.org/10.1016/j.nimb.2019.11.016

    The effect of gamma irradiation on Gd2O3 films was studied using the thermostimulated exoelectron emission (TSEE) technique. The films were deposited on a glass and Si/SiO2 substrates using an extraction-pyrolytic method. Crystalline structure, chemical composition, film thickness and surface morphology were characterized by means of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The films were irradiated by 10 MeV gamma photons and TSEE was measured from the irradiated films. It was found that gamma irradiation decreases TSEE intensity and the area below TSEE spectral curves. A linear correlation between the relative decrease in the area and the delivered dose was observed in a dose range of 0–10 Gy. These findings suggest that gamma radiation might decrease the density of trapped electrons present in the as-grown Gd2O3 films or create competing electron traps that inhibit TSEE from the films.
    Trvalý link: http://hdl.handle.net/11104/0313331

     
     
Počet záznamů: 1  

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