Thin CaSO4:Dy thermoluminescent dosimeters for calibration of 90Sr+90Y applicators.
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 CaSO(4):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.
Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, Av. Prof. Lineu Prestes, 2242, 05508-000, São Paulo, SP, Brazil.
Patrícia L
PL
Antonio
Mércia L
ML
Oliveira
Linda V E
LV
Caldas
D001918:Brachytherapy / Q000379:methods / Q000592:standards; D002133:Calcium Sulfate; D002138:Calibration; D006801:Humans; D011868:Radioisotopes; D013326:Strontium Radioisotopes; D013819:Thermoluminescent Dosimetry / Q000592:standards*; D015018:Ytterbium
D011868:Radioisotopes; D013326:Strontium Radioisotopes; D015018:Ytterbium; D002133:Calcium Sulfate