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What is the source activity of the sample after 50 years

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The fission of one atom of Pu-238 generates 3.2 MeV of energy. A spherical un-tamped critical mass is about 9.5 kg (which has a weight in US system of 20.9 lbs) The half-life of Pu 238 is 87.7 years. This is the main Plutonium isotope use today

The source activity of that sample of Pu 238 was certified to be 60.10 ci.

a) What is the source activity of the sample after 50 years?

b) What is the source activity of the sample after 500 years?

Reference no: EM132690185

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