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Radiation dosimetry for industrial and medical purposes has steadily evolved over the last few decades with the introduction of several new detectors. Al2O3:C ( Akselrod et al., 1990 ) is a widely used Optically Stimulated Luminescence (OSL) material in gamma, x-ray and beta radiation dosimetry and, more recently, it has also been tested for particle therapy ( Yukihara et al., 2010 ). One advantage of this material is the capability of acquiring both dose rate and total dose, from two different phenomena observed in the Al2O3:C crystal: radioluminescence (RL) and optically stimulated luminescence (OSL), respectively. The possibility on having very thin Al2O3:C powder allows preparing droplets, which can be made with different volume concentrations and different sizes and can be used as basis for a 2D dosimetry system. In this article droplets were characterized using 60Co, 137Cs, 90Sr/90Y and electron and photon medical beams. |
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