Complete the mcq:
1. 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
2. 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
3. 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)
4. 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
5. 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.