Isotope (s) used in high dose rate brachytherapy – a) lr192b) Co–60c) Cs–l33d) Ra 226 e) Pd103
Correct Answer: ab
Description: "Although cobalt - 60 and cesium - 137 have been used in the past, iridium - 192 is the most commonly used radioisotope in HDR brachytherapy". — The physics of radiation therapy
Note - Cs-137 is used in HDR brachytherapy, while option c i.e. Cs - 133 (not Cs - 137).
Category:
Radiology
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