Impact of silver nanoparticle impurity on improving LiF:Mg, Ti thermoluminescence response.

IF 1.8 3区 工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR
Marzieh Goli, Hamid Reza Baghani, Ehsan Koushki, Mostafa Robatjazi
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引用次数: 0

Abstract

Thermoluminescence dosimeters (TLDs) are widely used for radiation dose measurement in various applications, including radiation protection, radiotherapy, and diagnostic radiology. Therefore, efforts to improve TLD response and reduce uncertainty in measurements are highly valuable. This study aims to evaluate the effect of adding silver (Ag) nanoparticles to LiF:Mg,Ti TLD in terms of their structural characteristics, thermoluminescence (TL) properties, and dosimetric performance. The TLD samples were first synthesized, and Ag nanoparticles were subsequently incorporated as a third impurity. Both prepared samples (with and without Ag nanoparticles) were irradiated with predefined dose levels of 6 MV photons and corresponding glow curves and dose-response curves were compared. XRD, FESEM, and EDS analyses confirmed the proper formation of the LiF TLD structure. The presence of Ag nanoparticles was verified without any alteration in the overall crystalline structure of LiF. The obtained elemental correction coefficient (ECC) values were close to unity, indicating a nearly uniform distribution of impurities in the LiF structure. TLD glow curve at the same dose level enhanced when Ag nanoparticles were added to the TLD. Furthermore, the dose-response curve improved in the presence of Ag nanoparticles. Based on the results, it can be concluded that incorporating Ag nanoparticles into LiF:Mg,Ti enhances its thermoluminescence response and sensitivity.

银纳米颗粒杂质对改善LiF:Mg, Ti热释光响应的影响。
热释光剂量计广泛应用于辐射防护、放射治疗和放射诊断等领域。因此,改善TLD响应和减少测量不确定性的努力是非常有价值的。本研究旨在评价在LiF:Mg,Ti TLD中添加银(Ag)纳米粒子对其结构特征、热释光(TL)性能和剂量学性能的影响。首先合成TLD样品,然后将银纳米颗粒作为第三种杂质掺入。将制备的样品(含和不含Ag纳米粒子)以预先设定的6 MV光子剂量水平照射,并比较相应的发光曲线和剂量响应曲线。XRD, FESEM和EDS分析证实了LiF TLD结构的正确形成。证实银纳米粒子的存在没有改变liff的整体晶体结构。得到的元素校正系数(ECC)值接近一致,表明杂质在LiF结构中的分布近乎均匀。在相同剂量水平下,添加银纳米粒子增强了TLD的发光曲线。此外,银纳米颗粒的存在改善了剂量-响应曲线。结果表明,在LiF:Mg,Ti中掺入Ag纳米粒子可以增强其热释光响应和灵敏度。
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来源期刊
Applied Radiation and Isotopes
Applied Radiation and Isotopes 工程技术-核科学技术
CiteScore
3.00
自引率
12.50%
发文量
406
审稿时长
13.5 months
期刊介绍: Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.
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