Summary
Microscopic electron dose distributions inside and outside the colloid spheres of thyroid tissue of radii 15–150 µm containing 1.5 µCi/g123I,125I,131I, and132I uniformly distributed have been calculated by the application of Berger's scaled absorbed dose functions approximated by standard polynomial regression techniques. For131I,123I and132I whose electron or effective beta energy ranges are at least few times more than the sphere sizes considered the contributions of energy emitted from neighbouring follicles have been included into the dose calculations. Additionally, the frequency mean and energy mean of microscopic event-size distributions in small spherical125I sources have been computed in rad per one125I disintegration.
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Alexander von Humboldt Fellow, on leave from Institute of Nuclear Medicine and Allied Sciences, Delhi-7, India
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Reddy, A.R., Kaul, A. Microscopic dose distributions due to iodine isotopes in thyroid. Radiat Environ Biophys 15, 229–239 (1978). https://doi.org/10.1007/BF02176792
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DOI: https://doi.org/10.1007/BF02176792