Losini Amarasan, Malaysia

Losini Amarasan is a final year undergraduate of Electronics Engineering majoring in Telecommunications in the Faculty of Engineering and Technology, Multimedia University (MMU) of Malaysia. She conducted her research on silica fibre as her final year project and plans to further her studies with a Master's degree in engineering.

Silica fibre: The next material for thermoluminescence dosimeter (TLD).

Silica fibres have been proposed as the basis for a novel radiation sensor by the measurement of the thermoluminescence (TL) produced. Workers that are exposed to ionizing radiations such as radiographers, doctors using radiotherapy, nuclear power plant workers and those who work in laboratories using radionuclide, have to keep their radiation exposure record to justify the personal dose limit requirement. Hence, thermoluminescence dosimeter (TLD) is one of the most widely used dosimeter for the measurement and detection of ionizing radiation. One of the common types of TLDs is Lithium Fluoride (TLD-100). However, the limitation in TL sensitivity, spatial resolution and cost effectiveness, make it difficult to become the optimum dosimeter. The pure silica fibres and Germanium-doped silica fibres were selected for this research and TLD-100 (LiF:Mg,Ti) was used as reference dosimeter. The main aim of the research is to investigate whether our silica fibre could be used as the new radiation dosimeter.