Ukrainian Journal of Physical Optics


2025 Volume 26, Issue 2


ISSN 1816-2002 (Online), ISSN 1609-1833 (Print)

RADIOPHOTOLUMINESCENCE IN THE TISSUE-EQUIVALENT LiB3O5:Ag GLASSES

V. Adamiv, M. Kushlyk, U. Dutchak, Ya. Burak, I. Teslyuk, I. Medvid, I. Koflyuk and A. Luchechko.

Author Information
1,*V. Adamiv ORCID logo SCOPUS logo, 2M. Kushlyk ORCID logo SCOPUS logo, 3U. Dutchak ORCID logo SCOPUS logo, 1Ya. Burak ORCID logo SCOPUS logo, 1I. Teslyuk ORCID logo SCOPUS logo, 2I. Medvid ORCID logo SCOPUS logo, 2I. Koflyuk ORCID logo SCOPUS logo, 2A. Luchechko ORCID logo SCOPUS logo,
1O.G. Vlokh Institute of Physical Optics, Ivan Franko National University of Lviv
2Department of Sensor and Semiconductor Electronics, Ivan Franko National University of Lviv
3Department of Radiation Therapy, Lviv Oncology Regional Medical and Diagnostic Center
*Corresponding author: vol.adamiv@gmail.com

ABSTRACT

The absorption, photoluminescence (PL), and radiophotoluminescence (RPL) spectra in lithium triborate glass (LiB3O5:Ag), doped with 1% silver ions and irradiated with different doses of γ-radiation in the 0-20 Gy range have been investigated. The change of these spectra as a function of irradiation dose was also measured. The PL spectra of Ag+ are dominated by an ultraviolet broadband at about 290 nm. The RPL band is centered at about 430 nm at the excitations in the 310-350 nm spectral region. The mechanism of RPL emission arises from a change in the charge state of silver to A0-type centers when Ag+-doped glass is exposed to radiation that generates electrons and holes.

Keywords: lithium triborate glass, γ-radiation, radiophotoluminescence, dosimetric response

UDC: 535.37

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    Досліджено спектри поглинання, фотолюмінесценції (ФЛ) та радіофотолюмінесценції (РФЛ) у склі триборату літію (LiB3O5:Ag), легованому 1% іонами срібла та опроміненому різними дозами γ-випромінювання в діапазоні 0-20 Гр. Також вимірювали зміну цих спектрів як функцію дози опромінення. У спектрах ФЛ Ag+ переважає ультрафіолетова широка смуга приблизно при 290 нм. Смуга РФЛ зосереджена приблизно на 430 нм при збудженнях в спектральній області 310-350 нм. Механізм випромінювання РФЛ виникає через зміну зарядового стану срібла до центрів типу Ag0, коли скло, леговане Ag+, піддається випромінюванню, яке генерують електрони та дірки. Ключові слова: скло триборату літію, γ-випромінювання, радіофотолюмінесценція, дозиметричний відгук

    Ключові слова: lithium triborate glass, γ-radiation, radiophotoluminescence, dosimetric response

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