Batman Kozluk'tan Çıkarılan Doğal Tuzun Beta Radyasyonuna Maruz Bırakılması Sonrası Termolüminesans Özellikleri ve Kinetik Parametrelerinin Araştırılması

Year 2025, Volume: 15 Issue: 3, 928 - 945, 01.09.2025

Kenan Bulcar

https://doi.org/10.21597/jist.1653500

Abstract

Bu mevcut araştırmada, buharlaştırma yöntemiyle elde edilen Kozluk doğal tuzunun termolüminesans özellikleri ve kinetik parametreleri araştırılmıştır. Bu amaçla, termolüminesans yöntemi kullanılmıştır. Kozluk doğal tuzu örneklerinin ışınlanması, Lexyg Smart TL/OSL okuyucu cihazında 90Sr/90Y β- kaynağı kullanılarak gerçekleştirilmiştir. Bu kaynak, örneğe saniyede 0.097 Gy doz hızı sağlar. 0.1 ila 10 Gy doz aralığında elde edilen TL ışıma eğrileri, 92 ve 205 °C civarında iki belirgin ana pik göstermektedir. Ayrıca, Tm-Tstop deneyinde yaklaşık 278 °C civarında başka bir belirgin pik gözlemlenmiştir. Malzemenin yeniden kullanılabilirliği, aynı koşullar altında 10 kez ışınlanarak gözlemlenmiş ve standart sapma %5'lik dozimetri limitleri içinde kalmıştır; bu da yüksek doğruluk ve güvenilirlik sağladığını göstermektedir. TL kinetik parametreleri, başlangıç artış (IR), farklı ısıtma hızları (VHR), Tm-Tstop ve bilgisayarla ışıma eğrisi ayrıştırma (CGCD) yöntemleri kullanılarak hesaplanmıştır. CGCD analizi ile tüm TL ışıma eğrisinin en az dokuz enerji basamağından oluştuğu öngörülmüştür. CGCD analizinden elde edilen Merit Katsayısı (FOM) %0.61 olarak bulunmuş olup, bu da deneysel ve teorik veriler arasında iyi bir uyum olduğunu göstermektedir.

Keywords

Termolüminesans , Kozluk Doğal Tuzu , Anormal ısıtma hızı , Beta ışınlaması

Thanks

Yazar, tüm laboratuvar olanakları konusunda verdiği değerli desteklerden dolayı Prof. Dr. Mustafa TOPAKSU'ya (Çukurova Üniversitesi, Fizik Bölümü) büyük teşekkürlerini sunmak ister.

Investigation of the Thermoluminescence Properties and Kinetic Parameters of Natural Salt Extracted from Kozluk, Batman after Exposure to Beta Radiation

Abstract

In the present research, thermoluminescence properties and kinetic parameters of Kozluk natural salt obtained by the evaporation method were investigated. The irradiation of the Kozluk natural salt samples was carried out using a 90Sr/90Y β source in the Lexyg Smart TL/OSL reader device. This source provides a dose rate of 0.097 Gy per second to the sample. The TL glow curves obtained in the dose interval of 0.1 to 10 Gy show two distinct main peaks around 92 and 205°C. The dose-response relationship of the material exhibited super-linear characteristics in the 0.1–10 Gy range, as indicated by a slope of 1.1921. The reusability of the material was observed by irradiating 10 times under the same conditions, with the standard deviation remaining within the 5% dosimetric limit; this indicates that it provides high accuracy and reliability. The TL kinetic parameters were determined using the initial rise (IR), various heating rates (VHR), Tm-Tstop, and computerized glow curve deconvolution (CGCD) methods. It has been predicted that the entire TL glow curve consists of at least nine energy levels according to the CGCD analysis. The Figure of Merit (F.O.M), derived from the CGCD analysis, was 0.61%, demonstrating a good agreement between the experimental and theoretical data.

Keywords

Thermoluminescence , Kozluk natural salt , Anomalous heating rate , Beta irradiation

Thanks

The author would like to express great appreciation to Prof. Dr. Mustafa TOPAKSU (Çukurova University, Department of Physics) for his valuable support regarding all laboratory facilities.

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