Beams of mesons are used inradiation therapy for certain cancers. The energy com

Question

Beams of mesons are used inradiation therapy for certain cancers. The energy comes from thecomplete decay of the to stableparticles.

a) How much energy is released from the complete decay of a single pi- meson to stable particles? (You can ignore the very small masses of the neutrinos.)

c) How many pi- mesons need to decay togive a dose of 80.0 Gy to 19.0 g of tissue?

d) What would be the equivalent dose in part C in Sv? Consult the table

Radiation / RBE

X rays and gamma rays / 1
Electrons / 1
Protons / 5
Alpha particles / 5
Heavy ions 20
Slow neutrons / 5-20


and use the largest appropriate for the particles involved in this decay.

e) What would be the equivalent dose in part C in rem?

Explanation / Answer

http://www.chegg.com/homework-help/questions-and-answers/beams-mesons-used-radiation-therapy-certaincancers-energy-comes-complete-decay-stable-part-q279217

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