Fundamentals of Diagnostic Imaging

A set of vocabulary flashcards covering key concepts in radiation and diagnostic imaging.

Energy

The ability to do work, capable of being transformed from one form to another.

Electromagnetic Radiation

Radiation that has both electrical and magnetic components.

Wavelength

Distance between two successive crests or troughs of a wave, measured in angstroms or nanometers.

Frequency

The number of waves passing a given point per unit of time, measured in Hertz (Hz).

Photon

A small, discrete bundle of energy that acts as a particle when interacting with matter.

Absorbed Dose

The amount of radiation energy absorbed by matter, measured in rads or gray.

Radiation Exposure

Quantifies the amount of ionization in a specified amount of air, often measured in roentgen.

Dose Equivalent

Used to measure occupational radiation exposure; it accounts for the biological effects of different types of ionizing radiation.

Quality Factor

A factor used in calculating dose equivalent, accounts for the biological damage of different types of radiation.

Cardinal Principles of Protection

Shielding, time, and distance, strategies to minimize radiation exposure.

Ten Day Rule

Guideline advising that radiological examinations of women of reproductive age should be conducted during the first 10 days after the onset of menstruation.