If a linear accelerator is properly calibrated, the field size indicated at the control console will correspond to the size of the field at the: -(correct answer)Mechanical Isocenter A patient is treated with parallel-opposed mantle and paraortic fields of lengths 30 cm and 15 cm respectively. Calculate the gap required on the surace for the beams to intersect at the midline depth of 10 cm, SSD 100 -(correct answer)2.25 cm (30/2 X 100/10)+(15/2 X 100/10) While treating a patient on a linear acce...