Thermoluminescence and storage stability of TLD-100 dosimeter irradiated with 60Co-gamma rays |
| |
| Authors: | A Abdel-Kader H I Farag A R Tolba |
| |
| Affiliation: | (1) Physics Department, Faculty of Science, Menoufia University, Menoufia, Egypt;(2) Radiotherapy Department, Radiation Physics Unit, National Cancer Institute, Cairo University, Cairo, Egypt |
| |
| Abstract: | Thermoluminescence glow curves of TLD-100 revealed three peaks at 373, 460 and 518 K for all samples irradiated with gamma ray doses of 0.5 to 700 Gy. The total thermoluminescence response and the height of the main peak at 460 K showed similar characteristics to radiation dose. On the other hand, the total area under the glow curve increases continuously with radiation dose up to 1000 Gy. All irradiated samples investigated showed no significant fading over 28 d. Activation energy, E, and escape frequency factor, s, for the main glow peak were calculated by the modified empirical equation, as well as by methods depending on the shape of the glow peak. It was found that E has a value of 1.33 to 1.83 eV and s falls between 5.8×1013 and 3.06×1019 sec–1, depending on the method used. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
