What is a more modern method to correct for surface irregularities?

Which of the following were direct innovations that led to the availability of IMRT treatment planning?  Introduction of Motorized Multi-Leaf Collimation (MLC) Enhanced computing capabilities to support complex inverse planning algorithms Enhanced Image Guidance capabilities on the Linear Accelerators Introduction of Computed Tomography (CT) into radiation treatment planning  

True or False: Dose rate is decreased by blocking because of decreased scatter. 

What is the formula for finding the couch rotation needed when treating a CSI patient? 

Which is NOT a benefit of treating head and neck disease utilizing IMRT as opposed to 3D? 

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

What is the difference in a non-coplanar beam? 

What Hounsfield Number would be appropriate to when overriding Barium contrast in the bowel? 

How is the field size defined dosimetrically? 

In order to improve image resolution, would we increase or decrease the thickness of out CT slice?