Gama ile Işınlanmış Etosüksimid Numunesinin Radyasyon Duyarlılığının Elektron Paramanyetik Rezonans Spektroskopisi Yöntemiyle İncelenmesi

Yıl 2019, , 800 - 810, 01.06.2019

Kerem Sütçü

https://doi.org/10.21597/jist.483268

Cited By: 1

Öz

Bu çalışmanın amacı elektron paramanyetik rezonans spektroskopisi kullanılarak iyonize radyasyonun etosüksimid numunesinin radyasyon duyarlılığı üzerindeki etkilerini araştırmaktır. Işınlama sonrasında oluşan paramanyetik türlerin radyasyon duyarlılığını belirlemek maksadıyla, etosüksimid numunesine gama ışınları 1, 5, 10, 15, 20 ve 25 kiloGray dozlarında oda sıcaklığında uygulanmıştır. Numunenin sinyal şiddetlerinin mikrodalga güç fonksiyonuna bağlı değişimi 0.01-100 miliWatt aralığında incelenmiştir. Işınlanmış numunenin doz-cevap eğrilerini tanımlayan en yakın matematiksel denklemler belirlenmiştir. Absorbe edilen radyasyon dozuyla sinyal şiddetleri arasındaki korelasyon katsayıları hesaplanmıştır. Ölçümler gama ışımasıyla indüklenen serbest radikallerin dozimetrik özelliklerini incelemek için düşük ve yüksek sıcaklıklarda gerçekleştirilmiştir. Ayrıca, serbest radikallerin stabilitelerini incelemek için ışınlanmış numunenin sinyal şiddetlerinin zamana bağımlılığı analiz edilmiştir.

Anahtar Kelimeler

Elektron paramanyetik rezonans, serbest radikal, gama ışınlaması

Destekleyen Kurum

Dicle Üniversitesi DÜBAP

Proje Numarası

ZGEF15007

Teşekkür

Bu çalışma, Dicle Üniversitesi DÜBAP ZGEF15007 numaralı proje kapsamında desteklenmiştir.

Investigation of Radiation Sensitivity of Gamma-Irradiated Ethosuximide Sample by Electron Paramagnetic Resonance Spectroscopy

Öz

The purpose of this study is to investigate the effects of ionizing radiation on the radiation sensitivity of ethosuximide sample by using electron paramagnetic resonance spectroscopy. To determine the radiation sensitivity of the paramagnetic species formed after irradiation, gamma rays were applied to the ethosuximide sample at room temperature at doses of 1, 5, 10, 15 20, and 25 kiloGray. The intensities of signals of the sample as a function of microwave power were investigated in the range of 0.01-100 miliWatt. The closest mathematical equations that define the dose-response curves of the irradiated sample were determined. The correlation coefficients between the absorbed radiation dose and the signal intensities were calculated. Measurements were performed at low and high temperatures to study the dosimetric features of free radicals induced by gamma irradiation. Moreover time dependency of the intensity of the signals of the irradiated sample was analyzed to study the stability of the free radicals.

Anahtar Kelimeler

Electron paramagnetic resonance, free radical, gamma irradiation

Proje Numarası

ZGEF15007

Kaynakça

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