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Dosimetry and physical treatment planning for iodine eye plaque therapy

Journal Article · · International Journal of Radiation Oncology, Biology and Physics; (USA)
The dosimetry of eye plaques loaded with iodine-125 seeds (type 6702) was performed by means of computer calculations and measurements with thermoluminescent dosimeters (TLD). Measurements of the depth dose distribution (2-25.5 mm) along the transverse axis of a single seed were performed in water equivalent phantom material. The transverse axis attenuation and geometry factor F(r) was obtained by applying a least squares fit to the measured data. Based on the resulting radial dose function, a computer program was developed which calculates dose distributions within the eye for arbitrary loading and placement of the eye plaque. The computational results were verified by TLD measurements in an eye phantom.
OSTI ID:
5734921
Journal Information:
International Journal of Radiation Oncology, Biology and Physics; (USA), Journal Name: International Journal of Radiation Oncology, Biology and Physics; (USA) Vol. 20:5; ISSN IOBPD; ISSN 0360-3016
Country of Publication:
United States
Language:
English