Am-241 is a radioactive isotope that decays by alpha emission. Each alpha particle emitted carries 8.79E-13 J of kinetic energy. A 110.0 kg worker is accidentally exposed to a sample of Am-241 having an activity of 0.0600 curies for a total of 3.00 minutes. During that time the workers body absorbs 10.00 percent of the alpha particles emitted by the sample. How many alpha particles were emitted by the sample during the time of the workers exposure? How many joules of energy were absorbed by the worker? The alpha particles emitted by the sample have an RBE=20. Calculate the workers exposure in millirems.

Modern Physics
3rd Edition
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter13: Nuclear Structure
Section: Chapter Questions
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Am-241 is a radioactive isotope that decays by alpha emission. Each alpha particle emitted carries 8.79E-13 J of kinetic energy.

A 110.0 kg worker is accidentally exposed to a sample of Am-241 having an activity of 0.0600 curies for a total of 3.00 minutes. During that time the workers body absorbs 10.00 percent of the alpha particles emitted by the sample.

How many alpha particles were emitted by the sample during the time of the workers exposure?

How many joules of energy were absorbed by the worker?

The alpha particles emitted by the sample have an RBE=20. Calculate the workers exposure in millirems.

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