How can we help?

You can also find more resources in our Help Center.

14 terms

radiology

dental radiology
STUDY
PLAY
Systeme internationale units
Coulombs per kilogram (C/kg), Gray (Gy), Sievert (Sv)
Traditional units
Roentgen (R), Rad (radiation absorbed dose), Rem (roentgen equivalent man)
Kilovolt peak (kVp)
controls the penetrating power of electrons and quality
Milliampere (mA)
determines the amount of free electrons; quantity of electrons
Volt
electrical pressure between two electrical charges
Ampere
quanity of electric current
Cathode
negative electrode(everything starts here)
Anode
positive electrode
Radiolucent
portion of the image that is dark or black
Radiopaque
portion of the image that is light or white
Density
degree of darkness or image blackening and is controled by milliamperage
Short-scale contrast
fewer shades of gray and more black against white
Long-scale contrast
density differences between adjacent areas are small and there are many shades of gray
Radiographic contrast
visible difference between densities