Abstract
This paper reviews the thermoluminescence sensitivity of Ge- and Al- doped SiO2 optical fibre subjected to various ionizing radiations. It is found that the Ge- doped SiO2 optical fiber has the thermoluminescence response superior to Al-doped SiO2 optical fibre at certain energy and dose range in alpha, beta, photon and electron irradiation. High thermoluminescence intensity per unit dose goes to photon and electron irradiation than alpha and beta irradiation of lower energy. This probably due to the linear energy transfer that influence the dose deposition in the material as incident ionizing radiation striking the surface of Ge- and Al- doped SiO2 optical fibre. However, both doped SiO2 optical fibres show good linearity at studied dose range. It has been proven by researchers providing great potential as a dose absorbed measuring devices especially in radiotherapy energy and dose range.
Highlights
1.1 History and development of thermoluminescenceThe phenomenon of thermoluminescence is first discovered by Sir Robert Boyle when he saw a flash of light upon warming a diamond in contact with his body in a dark in 1663
The author would like to emphasize and review the thermoluminescence sensitivity of Ge- and Al-doped SiO2 optical fibre subjected to various ionizing radiations especially in our research group
The thermoluminescence sensitivity of optical fibres subjected to various ionizing radiations has been presented in this paper
Summary
The phenomenon of thermoluminescence is first discovered by Sir Robert Boyle when he saw a flash of light upon warming a diamond in contact with his body in a dark in 1663. Other minerals of quartz, zircon, feldspar, calcite, and flint which were burial underneath the earth for thousands of years have shown to exhibit similar properties that contribute to the emerge of thermoluminescence dating. This thermoluminescence dating method enables the determination of ages of archeological material when they are heated to higher temperature that possibly may reset the clock. A lot of investigations have been conducted to improve the efficiency and performance of thermoluminescence using LiF This path drives to the commercialized of standard thermoluminescence phosphor: Harshaw TLD-100. In the literature, there is lacked of effort in review of thermoluminescence sensitivity of Ge- and Al- doped SiO2 optical fibres in the systematic ways towards different ionizing radiation
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