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Homework Help: Nuclear Physics

  1. Nov 22, 2015 #1
    A 1.0 mCi source of 3215P (in NaHPO4), a β emitter, is implanted in a tumor where it is to administer 36 Gy. The half-life of 3215P is 14.3 days and 1 mCi delivers about 10 mGy/min. Approximately how long should the source remain implanted?

    I'm calculating 2.19 days but doing something wrong, because this answer is incorrect? any ideas?! thanks
  2. jcsd
  3. Nov 22, 2015 #2


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    Please use the Homework Template when posting HW questions and please show your attempt at solving the problem. Those are the rules at PF.
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