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Bremsstrahlung and Radiological Physics

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6. Electron interactions were characterized by a ratio "b/a". The ratio "b/a" represents:
a) Orbital electron distance to nuclear radius
b) Photon wavelength to atomic radius
c) Impact parameter to atomic radius
d) Orbital electron radius to nuclear radius

7. The electron-electron interaction that results in brehmsstrahlung results when the ratio of the "Impact parameter to atomic radius is"
a) Much less than 1
b) Approximately equal to 1
c) Much more than 1
d) Non-existent

8. Which material would be the most appropriate for the target in the head of a linac based only on ability to produce brehmsstrahlung
a) Helium (Z = 2)
b) Sodium (Z = 11)
c) Iodine (Z - 53)
d) Tungsten (Z = 74)

9. Which class of dose calculation algorithm is the most accurate for radiation therapy?
a) Correction-based
b) Mode based
c) Monte Carlo
d) All of the above

10. Monte Carlo is
a) A city in Monaco
b) A way to solve tough problems using statistical sampling
c) An accurate but computationally-expensive way to simulate radiation transport
d) All of the above.

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The solution examines Bremsstrahlung and radiological physics.

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Q6.) Electron interactions were characterized by a ratio "b/a". The ratio "b/a" represents:
Answer: C) Impact parameter to atomic radius
b is the impact parameter and a is the atomic radius.

Q7.) The electron-electron interaction that results in bremsstrahlung results when the ratio of the "impact parameter to atomic radius" is:
Answer: ...

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