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Thin CaSO4:Dy thermoluminescent dosimeters for calibration of Sr+Y applicators |
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| Authors: | Patrí cia L. AntonioMé rcia L. Oliveira,Linda V.E. Caldas |
| Affiliation: | a Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, Av. Prof. Lineu Prestes, 2242, 05508-000, São Paulo, SP, Brazil b Centro Regional de Ciências Nucleares, Comissão Nacional de Energia Nuclear, Av. Prof. Luis Freire, 200, 50740-540, Recife, PE, Brazil |
| Abstract: | Clinical applicators are used in brachytherapy to treat superficial lesions of skin and eye. They should be periodically calibrated according to quality control programs and international recommendations. Thin CaSO4:Dy thermoluminescent dosimeters were used to calibrate various applicators with a dermatological applicator as a reference. The obtained absorbed dose rates were compared with those quoted in their calibration certificates. Depth-dose curves were constructed for all the applicators. A mail dosimetry system was developed for calibration of clinical applicators. |
| Keywords: | 90Sr+90Y clinical applicators Thermoluminescence dosimetry CaSO4:Dy Depth-dose curves |
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