Synthesis and evaluation of thermoluminescence properties of ZrO2:Mg for radiotherapy dosimetry

Amarlou, Asieh; Mohammadi, Kheirollah; Banaee, Nooshin; Nedaei, Hassan Ali

doi:10.1007/s00411-021-00928-4

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…Another investigation performed on a glass sample of ZrO 2 doped with Mg for radiation therapy dosimetry saw the samples exposed to 1 Gy using a 6 MV linac X-ray beam. The results were found to fade by 47% after 24 h, and this was not appropriate for radiotherapy dose measurements because of the low sensitivity to multiple doses, low temperature for the TL peak, low reproducibility and significant fading [ 12 ]. The Al-doped LiB 3 O 5 nanophosphor exhibited a linear dose-response and a smooth energy response over the 0.01–100 Gy γ-exposure range.…”

Section: Introductionmentioning

confidence: 99%

Dosimetric Study of Heat-Treated Calcium–Aluminum–Silicon Borate Dosimeter for Diagnostic Radiology Applications

Al-Gain

Arib

Al-Said

et al. 2023

Sensors

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The production of thermoluminescence (TL) dosimeters fabricated from B2O3-Caf2-Al2O3-SiO2 doped with Cu and Pr for use in diagnostic radiology is the main goal of this research. The TL samples were synthesized via the melt-quench technique processed by melting the mixture at 1200 °C for 1 h, and, after cooling, the sample thus created was divided into two samples and retreated by heating for 2 h (referred to as TLV30) and for 15 h (referred to as TLV17). SEM and EDS analyses were performed on the TL samples to confirm the preparation process and to investigate the effects of irradiation dosimetry on the TL samples. Furthermore, the TL samples were irradiated with γ-rays using a 450 Ci 137Cs irradiator and variable X-ray beams (5–70 mGy). Two important diagnostic radiology applications were considered: CT (6–24 mGy) and mammography (2.72–10.8 mGy). Important dosimetric properties, such as the glow curves, reproducibility, dose–response linearity, energy dependence, minimum dose detectability and fading, were investigated for the synthetized samples (TLV17 and TLV30), the results of which were compared with the Harshaw TLD-100. The TLV17 dosimeter showed higher sensitivity than TLV30 in all applied irradiation procedures. The dose–response linearity coefficients of determination R2 for TLV17 were higher than TLD-100 and TLV30 in some applications and were almost equal in others. The reproducibility results of TLV17, TLV30 and TLD-100 were less than 5%, which is acceptable. On the other hand, the results of the fading investigations showed that, in general, TLV17 showed less fading than TLV30. Both samples showed a significant decrease in this regard after the first day, and then the signal variation became essentially stable though with a slight decrease until the eighth day. Therefore, it is recommended to read the TL dosimeters after 24 h, as with TLD-100. The SEM images confirmed the existence of crystallization, whilst the EDS spectra confirmed the presence of the elements used for preparation. Furthermore, we noticed that TLV17 had grown dense crystals that were larger in size compared to those of TLV30, which explains the higher sensitivity in TLV17. Overall, despite the fading, TLV17 showed greater radiation sensitivity and dose–response linearity compared with TLD-100. The synthetized TL samples showed their suitability for use as dosimeters in diagnostic radiology radiation dosimetry.

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Section: Introductionmentioning

confidence: 99%

Dosimetric Study of Heat-Treated Calcium–Aluminum–Silicon Borate Dosimeter for Diagnostic Radiology Applications

Al-Gain

Arib

Al-Said

et al. 2023

Sensors

View full text Add to dashboard Cite

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Modified Dosimetric Features of New Type of Lithium Borate Glass System: Role of Magnesium and Gold Co-doping

Obayes,

Meteab,

Al-Kareem

2024

Trans. Electr. Electron. Mater.

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Effect of the Crystalline Phase Type on the Thermoluminescent Response of ZrO2 Due to Different Synthesis Methods

Leon,

Montes,

Elias

et al. 2024

NANO

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ZrO2 samples were obtained using three different synthesis methods (Calcination, Co-precipitation and Hydrothermal). The samples were characterized to analyze the effect of the crystalline phase on their thermoluminescent (TL) and photoluminescent (PL) responses. The ZrO2 phase was analyzed by X-Ray diffraction (XRD) and Raman. Nanoparticle size distribution was obtained by scanning electron microscopy (SEM). For optical analysis, characterizations included absorbance measurements, where samples exhibited modifications in color centers, PL emission and experimental fluorescence lifetime decay ([Formula: see text] measurements. Additionally, their TL response was studied under UV (245[Formula: see text]nm and 385[Formula: see text]nm), and 6[Formula: see text]MV photon energy from LINAC excitation. The obtained results show the improvement of TL and PL properties due to ZrO2 phase while an amorphous ZrO2 synthesized by hydrothermal method is an excellent prospect to be used as TL material and it may be a promising scintillator material at 254[Formula: see text]nm.

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Synthesis and evaluation of thermoluminescence properties of ZrO2:Mg for radiotherapy dosimetry

Cited by 3 publications

References 14 publications

Dosimetric Study of Heat-Treated Calcium–Aluminum–Silicon Borate Dosimeter for Diagnostic Radiology Applications

Dosimetric Study of Heat-Treated Calcium–Aluminum–Silicon Borate Dosimeter for Diagnostic Radiology Applications

Modified Dosimetric Features of New Type of Lithium Borate Glass System: Role of Magnesium and Gold Co-doping

Effect of the Crystalline Phase Type on the Thermoluminescent Response of ZrO2 Due to Different Synthesis Methods

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