The History of Ionizing Radiation and Basic Principles of X-Ray Generation

This set of flashcards contains key terms and definitions from the lecture on the history and basic principles of ionizing radiation and X-ray generation.

Radiation

Emission and propagation of energy through space or in the form of waves or particles.

Ionization

When an orbiting electron is ejected from its shell in an electrically stable or neutral atom.

Electromagnetic Spectrum

Grouping of energy waves known as electromagnetic radiation.

X-Rays

Invisible waves or bundles of energy that can penetrate structures and record images.

Bremsstrahlung Radiation

Produced when an electron hits or approaches the nucleus of the tungsten atom.

Characteristic Radiation

Produced when a high-speed electron dislodges an electron from the inner shell of the tungsten atom.

X-Ray Tube

Device containing high voltage, anode, and cathode used to produce x-rays.

Anode

Positive electrode in an x-ray tube where electrons are directed.

Cathode

Negative electrode in an x-ray tube that serves as the source of electrons.

Milliamperage (mA) Dial

Controls the amount of current in the filament circuit of an x-ray tube.