Synthesis, RL and OSL characterization of thulium doped NaMgF3 neighborite
Por:
Camargo, L., Perez Cruz, L., Cruz-Zaragoza, E., Chavez Garcia, M. L., Santiago, M., Marcazzo, J.
Publicada:
1 feb 2021
Categoría:
Radiation
Resumen:
The aim of this work is to study the dosimetric properties of
tissue-equivalent thulium doped NaMgF3 neigh-borites and to determine
their possible application as dosimeters in personal dosimetry. In this
aspect, radioluminescence (RL) and optically stimulated luminescence
(OSL) dosimetric properties of undoped and Tm3+-doped NaMgF3 have been
investigated for the first time. Samples were synthesized by solid state
reaction and by considering a stoichiometric mixture of pure NaF and
MgF2 reagents. Two emission peaks centered at 460 and 360 nm have been
found in the RL emission spectrum of the doped samples, which can be
ascribed to the D-1(2) F-3(4) and D-1(2) - H-3(6) transitions of Tm3+
cations, respectively. Maximum OSL emission under blue light stimulation
has been found for samples doped with 0.2 mol % of thulium.
Furthermore, the OSL signal of this compound depends linearly on dose
within the range 0.05-100 Gy. Besides, its OSL signal features
satisfactory repeatability and a minimum detectable dose of 0.04 Gy.
Finally, it has been found a low fading of the OSL signal of
approximately 13% after the first 60 h, after which the OSL response
remains constant. The obtained results suggest the feasibility of using
this compound as an OSL detector in personal dosimetry.
Filiaciones:
Camargo, L.:
Inst Fis Arroyo Seco UNCPBA, Pinto 399, RA-7000 Tandil, Argentina
CIFICEN UNCPBA CICPBA CONICET, Pinto 399, RA-7000 Tandil, Argentina
Perez Cruz, L.:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, AP 70543, Ciudad De Mexico 04510, Mexico
Cruz-Zaragoza, E.:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, AP 70543, Ciudad De Mexico 04510, Mexico
Chavez Garcia, M. L.:
Univ Nacl Autonoma Mexico, Fac Quim, Ciudad De Mexico 04510, Mexico
Santiago, M.:
Inst Fis Arroyo Seco UNCPBA, Pinto 399, RA-7000 Tandil, Argentina
CIFICEN UNCPBA CICPBA CONICET, Pinto 399, RA-7000 Tandil, Argentina
Marcazzo, J.:
(Corresponding Author), Inst Fis Arroyo Seco UNCPBA, Pinto 399, RA-7000 Tandil, Argentina
(Corresponding Author), CIFICEN UNCPBA CICPBA CONICET, Pinto 399, RA-7000 Tandil, Argentina
Inst Fis Arroyo Seco UNCPBA, Pinto 399, RA-7000 Tandil, Argentina
CIFICEN UNCPBA CICPBA CONICET, Pinto 399, RA-7000 Tandil, Argentina
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