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A person with lymphoma receives a dose of 35 Gy in the form of y radiation during a course of radiotherapy. Most of this dose is absorbed in 18 g of cancerous lymphatic tissue. (a) How much energy is absorbed by the cancerous tissue? (b) If this treatment consists of five 15 minute sessions per week over the course of 5 weeks and just 1% of the y photons in the y ray beam are absorbed, what is the power of the y ray beam? (c) If the y ray beam consists of just 0.5% of the y photons emitted by the y source, each of which has an energy of 0.03Mev, what is the activity (in Ci) of the y ray source?

A person with lymphoma receives a dose of 35 Gy in the form of y radiation during a course of radiotherapy. Most of this dose is absorbed in 18 g of cancerous lymphatic tissue. (a) How much energy is absorbed by the cancerous tissue? (b) If this treatment consists of five 15 minute sessions per week over the course of 5 weeks and just 1% of the y photons in the y ray beam are absorbed, what is the power of the y ray beam? (c) If the y ray beam consists of just 0.5% of the y photons emitted by the y source, each of which has an energy of 0.03Mev, what is the activity (in Ci) of the y ray source?

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A person with lymphoma receives a dose of 35 Gy in the form of y radiation during a course of radiotherapy. Most of this dose is absorbed in 18 g of cancerous lymphatic tissue. (a) How much energy is absorbed by the cancerous tissue? (b) If this treatment consists of five 15 minute sessions per week over the course of 5 weeks and just 1% of the y photons in the y ray beam are absorbed, what is the power of the y ray beam? (c) If the y ray beam consists of just 0.5% of the y photons emitted by the y source, each of which has an energy of 0.03Mev, what is the activity (in Ci) of the y ray source?
Transcribed Image Text:A person with lymphoma receives a dose of 35 Gy in the form of y radiation during a course of radiotherapy. Most of this dose is absorbed in 18 g of cancerous lymphatic tissue. (a) How much energy is absorbed by the cancerous tissue? (b) If this treatment consists of five 15 minute sessions per week over the course of 5 weeks and just 1% of the y photons in the y ray beam are absorbed, what is the power of the y ray beam? (c) If the y ray beam consists of just 0.5% of the y photons emitted by the y source, each of which has an energy of 0.03Mev, what is the activity (in Ci) of the y ray source?
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