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How is the field size defined geometrically? 

Which electron cutout is likely to have the biggest loss of lateral scatter equilibrium and most significant high-isodose constriction?  

True or False: A maximum point dose of 60Gy is acceptable for the spinal cord.  

True or False: Potential damage to normal tissue increases with increased Integral dose. 

In which of the following diagrams is the wedge symbol on one or more beams oriented incorrectly? 

Which of the following statements are TRUE regarding IMRT?  NOMOS Peacock was one of the first commercially available Serial Tomotherapy delivery  systems.  IMRT delivers significantly higher integral dose than most traditional 3D/2D planning methods.  IMRT methods increased the awareness of risk associated with “marginal miss”  Isodose lines are usually more conformal to the target structures with IMRT than with VMAT   

True or False: When placing wedges on 2 beams, the toes of the wedges are placed together. 

Which of the following would make the isodose distribution more homogeneous?   

The difference in gantry angle position for a wedged pair of photon fields is 150°. Assuming the surface is perpendicular to the beam axes, the most appropriate wedge angle, to achieve a uniform distribution is:  

What is the difference in a non-coplanar beam?