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Half life of important radionuclides

 
NUCLIDE HALF-LIFE
I131                 8 days
I132                 2.3 hours
Co60                                5.2 years
Tc99                 6 hours
P32                   14 days
Thallium          3 days
Gallium            3 days
 Rn22                               3 days
Carbon-II 20.3 min
Cesium-137 30 yr
hromium-51 27.8 day
Cobalt-57 270 day
Cobalt-58 71.3 day
Cobalt-60 5.26 yr
Fluorine-I 8 109min
Gadolinium-I 53 240 day
Gallium-67 78.1 hr
Indium-III 67 hr
lodine-I 23 13 hr
lodine-I 25 60 day
lodine-I 31 8.06 day
Krypton-81m 13 see
Molybdenum-99 66.7 hr
Nitrogen-I 3 IOmin
Oxygen-IS 124 see
Phosphorus-32 14.3 day
Rhenium-I 86 90 hr
Rubidium-82 1.3 min
 




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