Suppose that an 85.0gram laboratory animal ingested 10.0mg of a substance that contained 2.50% by mass...

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Chemistry

Suppose that an 85.0gram laboratory animal ingested 10.0mg of asubstance that contained 2.50% by mass Pu-239, an alpha emitterwith a half-life of 24,110 years.
1) What is the animal's initial radiation exposure inCuries?
2) If all of the energy from the emitted alpha particles isabsorbed by the animal's tissues, and if the energy of eachemission is 7.77x10E-12J what is the dose in rads to the animal inthe first 4.5 hours following the ingestion of the radioactivematerial?
3) Assuming a biological effectiveness factor of 20, what is the4.5-hour dose in rems?

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4.2 Ratings (649 Votes)

1 Actually to determine accurately initial radiation dose upto 32 Gy which is lethal dose for dogs1 Gy 1 joulekilogram a physical quantity2 The radiation dose to the animal in the first 45 hours andfollowing the ingestion of the radioactive material is 45 Gy ofacute gamma radiation3 1 Sv 100 remsThe See Answer

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