For shield (mould) in eye tumors which of the following is preferred?
Ans. D. Phosphorous-32Some useful radionuclides used in clinical radiotherapyRadionuclideEnergy Half-life Medical uses* Radium-2260.83mv1625 yearsfor brachytherapy but not used now a days* Cobalt-601.25mv5.4 yearsteletherapy & brachytherapy* Caesium-1370.666mv30 yearsteletherapy & brachytherapy* Iridium-1920.380mv72 daysbrachytherapy only* Iodine-1250.030mv60 daysbrachytherapy* Iodine-1310.61mv8 daysunsealed radioiodine for thyroid cancer Rx* Gold-1980.412mv 2.7 days brachytherapy* Strontium-902.24mv30 yearsfor shield (mould) in eye tumors* Phosphorous-321.71mv14 daysintraperitoneal
Iodine-131
Gold-198
Strontium-90
Phosphorous-32
Miscellaneous