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1.37 J of alpha radiation is targeted on 1.00 g of fibrotic heart tissue during curative therapy. What is this in grays (Gy)?

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Answer :

Final answer:

The dose of 1.37 joules of alpha radiation targeted on 1.00g of heart tissue is equivalent to 1370 Grays (Gy). Grays (Gy) is a measure of radiation absorption.

Explanation:

The absorption of radiation can be measured in Grays (Gy), which is a unit for radiation dose defined as the absorption of one joule of radiation energy per kilogram of material. Given the energy targeted on the heart tissue (1.37 J) and mass of the tissue (1.00 g), you can convert the mass to kilograms since the Gray is based on this unit (1 g = 0.001 kg). Then, divide the energy absorbed (1.37 J) by the mass of the tissue in kilograms. The calculation would be 1.37 J / 0.001 kg = 1370 Gy. Therefore, 1.37 J of radiation directed at 1.00 g of heart tissue equals 1370 Grays (Gy).

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