Introduction to Radiographic Electronics (RAD 142 C) Flashcards

A comprehensive set of vocabulary flashcards covering the history, properties, professions, and safety principles of radiographic electronics and medical imaging.

Radiation

The transfer of energy through space or a material away from the source.

X-rays

Electromagnetic radiation with extremely short wavelengths that can pass through many materials.

Wilhelm Roentgen

The scientist who discovered x-rays on November $8$, $1895$, using a Crookes tube and barium platinocyanide.

Barium platinocyanide

The phosphor material that glowed during Wilhelm Roentgen's experiments, leading to the discovery of x-rays.

Anna Bertha Roentgen

The subject of the first radiograph, which required a $30$ minute exposure.

Polyenergetic

A property of x-rays indicating that they consist of many different energies rather than a single energy level.

Fluoroscopy

A type of x-ray examination that provides "real time" moving images, originally developed by Thomas Edison in $1898$.

Thomas Edison

The inventor who developed the Fluoroscope in $1898$.

ARRT

The American Registry of Radiologic Technologists, which provides national certification ($R.T.$) in Radiologic Technology.

CRT

Certified Radiologic Technologist; the state licensing required by the State of California Department of Health Radiation Health Branch to practice.

J.R.C.E.R.T

Joint Review Committee on Education in Radiologic Technology.

A.S.R.T

American Society of Radiologic Technologists.

T.J.C

The Joint Commission.

Ultrasound (sonography)

An imaging modality that uses high frequency sound waves to produce "real time" images.

Computed Tomography (CT)

A modality that uses ionizing radiation to obtain cross sectional images and is capable of $3\text{D}$ reconstruction.

Magnetic Resonance Imaging (MRI)

A diagnostic imaging tool that uses magnets and radio waves rather than ionizing radiation.

Nuclear Medicine (NM)

A specialty that uses a sensitive scanner to detect radioactive isotopes (radioisotopes) emitted from the patient's body after injection.

Radiation Therapy

The use of high levels of radiation in the range of $\text{Megavolts}$ to treat and destroy cancer cells.

ALARA

The guiding principle of radiation protection which stands for "As Low As Reasonably Achievable."

Three Cardinal Principles of Radiation Protection

The primary methods for reducing radiation exposure: TIME, DISTANCE, and SHIELDING.

Erythema

A type of radiation injury characterized by redness of the skin.

Alopecia

A type of radiation injury referring to hair loss.

Radon

The largest source of natural environmental radiation, contributing an average annual dose of $230\text{ mrem}$.

Matter

Anything that occupies space and has mass and can exist in one of four physical states.

Energy

The ability to do work.

Scientific Notation

A mathematical method for expressing numbers in the form of $N \times 10^e$.