Final answer:
The production of X-rays in a CT machine requires a source of electrons, a means of rapid acceleration of electrons, and a means of rapid deceleration of electrons.
Step-by-step explanation:
In a CT machine, the production of X-rays requires:
- A source of electrons
- A means of rapid acceleration of electrons
- A means of rapid deceleration of electrons
The electrons are ejected from an electron source, and accelerated toward a target by an electric field, and when they strike the target, x-rays are produced.