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A 75 kg patient swallows a 33 µCi beta emitter whose half-life is 5.0 days and whose RBE is 1.6. The beta particles are emitted with an average energy of 0.35 MeV, 90% of which is absorbed by the body. How many radioactive nuclei are left in the patient after one week? Express your answer using three significant figures. • View Available Hint(s) You are a health care worker needing to find the patient's dose equivalent after one week. These series of steps will help you find that dose equivalent. In all questions, assume the radioactive nuclei are distributed throughout the patient's body and are not being excreted. Πνα ΑΣφ AE ? N =

A 75 kg patient swallows a 33 µCi beta emitter whose half-life is 5.0 days and whose RBE is 1.6. The beta particles are emitted with an average energy of 0.35 MeV, 90% of which is absorbed by the body. How many radioactive nuclei are left in the patient after one week? Express your answer using three significant figures. • View Available Hint(s) You are a health care worker needing to find the patient's dose equivalent after one week. These series of steps will help you find that dose equivalent. In all questions, assume the radioactive nuclei are distributed throughout the patient's body and are not being excreted. Πνα ΑΣφ AE ? N =

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A 75 kg patient swallows a 33 µCi beta emitter whose half-life is 5.0 days and whose RBE is 1.6. The beta particles are emitted with an average energy of 0.35 MeV, 90% of which is absorbed by the body. How many radioactive nuclei are left in the patient after one week? Express your answer using three significant figures. • View Available Hint(s) You are a health care worker needing to find the patient's dose equivalent after one week. These series of steps will help you find that dose ? equivalent. In all questions, assume the radioactive nuclei are distributed throughout the patient's body and are not being excreted. N = NO = 7.61×1011
Transcribed Image Text:A 75 kg patient swallows a 33 µCi beta emitter whose half-life is 5.0 days and whose RBE is 1.6. The beta particles are emitted with an average energy of 0.35 MeV, 90% of which is absorbed by the body. How many radioactive nuclei are left in the patient after one week? Express your answer using three significant figures. • View Available Hint(s) You are a health care worker needing to find the patient's dose equivalent after one week. These series of steps will help you find that dose ? equivalent. In all questions, assume the radioactive nuclei are distributed throughout the patient's body and are not being excreted. N = NO = 7.61×1011
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