Which type of IMRT treatment delivery has the gantry in a fixed position with an initial MLC pattern?

Question

Quizplus · Accepted Answer

A "step-and-shoot" system will have the gantry in a fixed position with an initial MLC pattern.A portion of the dose is delivered through this leaf pattern or segment.(Beam is delivered after the MLC has achieved the shape corresponding to its appropriate segment.)With the gantry in the same position,the beam is automatically interrupted and the leaf pattern changes to that corresponding to the second segment.The beam is then turned on for the second
segment.

Which Type of IMRT Treatment Delivery Has the Gantry in a Fixed