Lecture 6 Quiz on X-Ray Technology

The operating console lets the technologist control mainly:

• medical history

• kVp, mA, and exposure time

• the tube housing size

• the patient's position

kVp mainly controls:

• the # of x-rays

• the penetration (quality) of the beam

• the length of exposure

• the heat of the anode

mA mainly controls:

• how many electrons boil off filament

• how strong the x-ray passes through bone

• grid frequency

• patient dose automatically

mAs =

• mA = time

• KV x time

• mA x time

• KV ÷ MA

All operator controls are located on the

• high

• low

• middle

• patient-side

Line compensation does what?

• measures patient thickness

• stabilizes incoming power

• lowers anode speed

• increases SID

Most modern machines have line compensation that is:

• manual

• random

• automatic

• external

What device slightly adjusts voltage before the main transformer?

• step-down transformer

• battery pack

• autotransformer

• rectifier

Voltage changes based on the autotransformer:

• thickness of patient

• filament diameter

• number of turns ratio

• generator size

What controls the filament temperature?

• line compensator

• mA control

• collimator

• AEC relay