Half life and isotope decay of Radioactive Iodine ( I131 )
A lot is said about the short half life of I131, the type of radioactive iodine used for thyroid treatment. Here are the facts about half life with regard to I131. I131 has a half life of slightly more than 8 days. For simplicities’ sake, we’ll round it to 8 days. If I131 has a half life of 8 days, then it should disappear in 16 (2 half lives), right? Not exactly. Every half life the amount of radioactive iodine is reduced by 50%. The other 50% is no longer I131, but is now stable (non-radioactive Xenon 131. Here’s an […]
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