The other important component of an X-ray generating
system is the control console. Consoles typically have a
keyed lock to prevent unauthorized use of the system.
They will have a button to start the generation of X-rays
and a button to manually stop the generation of X-rays.
The three main adjustable controls regulate the tube
voltage in kilovolts, the tube amperage in milliamps, and
the exposure time in minutes and seconds. Some systems
also have a switch to change the focal spot size of the tube.