Medical Termilogy Review Flashcards
Anode
The positive electrode in the x-Ray tube /glass envelope
Alara concept
A radiation protection concept that states all exposure should be kept ass low ass reasonable archievable
Contrast
Differences in densities on adjacent areas of a radiograph
Density
The overal blackness on radiograph
Frequency
The number of wavelength passing through a fixed point per given period of time
Ion
An electrically charge particle
Milliamperes
mA) a unit of measurement used to determine the amount of electrical current ;1mA is equal to 1/1,000 an ampere
Photon
Small bundle of pure energy that has no mass or weight
Radiograph
A recorder image on photographic
Radiolucent
Dark portion of a radiograph that represent soft tissue ( for example dental pulp) that allow X-ray to pass through space and Aire are also radiolucent
Atom
The basic unit of all matter
Cathode
The negative electrode in the X-ray tube/ glass envelope
Ionization
The process through which electron are lost from the shell of an atom
Ionizing radiation
Radiation that is capable of producing ions by adding or removing electrons from the shell of an atom
Primary radiation
Initial radiation produce at the tungsten target that exist the tube head