Gendya, A., Saad, A., Al-Abyad, M. (2024). Thermal annealing induced alterations of optical properties in a CR-39 polymeric nuclear track detector. Bulletin of Faculty of Science, Zagazig University, 2024(1), 36-42. doi: 10.21608/bfszu.2023.222337.1286
Amany T. Gendya; Abdallah Saad; M. Al-Abyad. "Thermal annealing induced alterations of optical properties in a CR-39 polymeric nuclear track detector". Bulletin of Faculty of Science, Zagazig University, 2024, 1, 2024, 36-42. doi: 10.21608/bfszu.2023.222337.1286
Gendya, A., Saad, A., Al-Abyad, M. (2024). 'Thermal annealing induced alterations of optical properties in a CR-39 polymeric nuclear track detector', Bulletin of Faculty of Science, Zagazig University, 2024(1), pp. 36-42. doi: 10.21608/bfszu.2023.222337.1286
Gendya, A., Saad, A., Al-Abyad, M. Thermal annealing induced alterations of optical properties in a CR-39 polymeric nuclear track detector. Bulletin of Faculty of Science, Zagazig University, 2024; 2024(1): 36-42. doi: 10.21608/bfszu.2023.222337.1286
Thermal annealing induced alterations of optical properties in a CR-39 polymeric nuclear track detector
1Physics Department, Faculty of Science, Zagazig University, Zagazig, Egypt
2physics, Faculty of science, Zagazig university
3Nuclear Physics Department (Cyclotron Facility), Nuclear Research Centre, Atomic Energy Authority
Abstract
Isochronal annealing experiment was conducted on poly allay diglycol carbonate (PADC) commercially known as a CR-39 detector. The detector films were subjected thermal treatment at 130, 140, 150 and 160 °C for annealing time of 8 h. The qualitative impacts of these treatments have been analyzed by means of ultraviolet/visible (UV/Vis) spectrophotometry in the range 190–800 nm, considering optical properties such as absorbance, band-gap energy, and Urbach energy. As control, CR-39 detector film non-subjected thermal treatment (pristine film) was also examined. This paper shows how the well-controlled thermal treatment of the PADC detector can alter its optical properties in the near-surface layer of thickness beyond a couple of hundreds of nanometers. This finding is more pronounced for cases of higher annealing temperatures and larger annealing time intervals. The absorbance, direct and in-direct band gaps, Urbach energy and carbon atoms per conjugated length proved to be highly affected by increasing the thermal annealing temperature ranging from 130 to 160 °C for 8 h annealing period of time.
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