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A simple calibration method for 106Ru-106Rh eye applicators.

Nenad Kovacević·Mladen Vrtar·Branko Vekić
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Abstract

Ru-Rh eye applicators are used for the radiotherapy of eye malignancies such as melanomas. We present a method of dosimetry of these beta particle emitting applicators. Method is based on a Plexiglas phantom (constructed for this purpose) containing spherical shells and very small, 1x1x1mm3 thermoluminescent dosimeters (TLD) as dosimeters. We determined 3-D depth doses and interpolated depth dose functions. Surface dose rate inhomogeneities and the consequences were considered and discussed. A possible influence of photon component of the emission on the results was analysed. The method has overall combined uncertainty + or -6% which is comparable, and slightly better, than other recent dosimetric methods.

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CalibrationEye NeoplasmsHumansMelanomaRadiometryRadiotherapyRhodiumRutheniumJournal Article

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Nenad Kovacević, Mladen Vrtar, Branko Vekić. 2004-12-23. A simple calibration method for 106Ru-106Rh eye applicators.. https://doi.org/10.1016/j.radonc.2004.12.002

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