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Aloke Kanjilal
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Abstract
nRegarding targeted treatment, hadron therapy is beneficial than conventional radiotherapy based on X rays/gamma rays due to characteristic energy loss profile of energetic charged particle during ion matter interaction. In this regard, dose monitoring and its precise measurement with spatial accuracy are very crucial. Thermoluminescence (TL) based thin film radiation dosimeter has the potential to serve this purpose. In hadron therapy, use of swift carbon ion beam is found to be best due to both physical and biological benefits. Regarding swift ion irradiation, although electronic energy loss (Se) dominates over nuclear energy loss (Sn), still the possibility of Sn induced lattice defects formation cannot be completely ruled out. Therefore, efficiency/sensitivity of dosimeter could be changed. Aluminium oxide (Al2O3) is one of the promising materials in the field of dosimetry. For the use of Al2O3 based radiation dosimeter for ion beam dosimetry, it is necessary to understand the effect of swift carbon ion irradiation on Al2O3 thin films. In this article, the effect of irradiation of swift carbon ion beam on radiation efficiency/sensitivity of radio frequency magnetron grown alumina (Al2O3) is presented and the feasibility of Al2O3 based radiation dosimeter is discussed.
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Keywords: Radiation hardness, Ion beam dosimetry, Thermoluminescence, Al2O3 thin film, Swift carbon ion beam
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| Volume | 11 |
| Issue | 07 |
| Received | August 14, 2023 |
| Accepted | August 31, 2023 |
| Published | September 15, 2023 |
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