A radiation therapist is standing 28 cm from a radioactive source, which is resulting in an exposure rate of 9 mR/hour. In order to reduce the exposure rate to 0.06 mR/hour, at what distance must the therapist be standing?

The Paris System of brachytherapy planning applies to the use of

EXTRA CREDIT: Which of the following is a nonspecific daily physical assessment side effect of a cancer patient? 

EXTRA CREDIT: In a neutral atom, the electrical neutrality is achieved by maintaining a balance between the 

EXTRA CREDIT: Which of the following are pulse radiation detectors?

Calculate the minimum skin gap between field A which has a SSD of 105 cm with a field size of 6 x 12 cm and field B with a field size of 7 x 14 cm and an SSD of 110 cm. The depth of match is 8 cm. What is the skin gap?

What is the equivalent square for a treatment portal the measures 6.7 cm x 12.8 cm?

During CT simulation of the thorax, a lesion in the cervix is at a distance of 40 cm from the image detectors and an object to image distance of 4 cm. The lesion measures 3.7 cm on the image. Determine the object size of the lesion?

The function of the flattening filter is to

Which of the following is not a common consideration in obtaining computed tomography scans for treatment planning?