Localizing lasers in the simulation room and the linear accelerator must be within _____________ of the isocenter.

Medical accelerator hazards, which cause the dose to be delivered to the wrong area are caused by all of the following except

Field size

Which of the following is illustrated by number 7?

The patient’s field size is determined by

Fractionation is best defined as a/an

Which of the following organs does not drain directly into the paraaortic lymph nodes?

The doctor prescribes an isocentric treatment for a patient with rectal cancer on a linear accelerator calibrated to a distance of 100 SSD. The portal design is such that the posterioanterior portal collimator setting on the secondary collimator is 6.7 cm x 7.3 cm. The tumor isocenter is 5.7 cm from the posterior aspect of the patient. What would be the field size on the patient’s skin? 

At fractionated total doses between 35-40 Gy, all of the following organs will reach their whole organ tissue tolerance dose EXCEPT:

Which of the following is not a functional daily quality assurance procedure for the linear accelerator?