tightly sealed, heavy metal housing that contains the tube
What is Tubehead
100
controls the amount of time given to the exposure of a rdiograph
What is MAs (Milliamperage)
100
the newer system used to measure radiation
What is Systeme internationale (SI)
200
Positive electrode in the xray tube
What is ANODE
200
safest wavelength and energy level
What is short wavelenth- High energy
200
3 primary components of the xray machine
What is the tubehead, extension arm, control panel
200
three geometric characteristics affect the quality of a radiograph
What is sharpness, magnification, distortion
200
SI units (Systeme Internationale) include:
What is 1. coulombs 2. the gray (GY) 3. Sievert (Sv)
300
The Overall darkness or blackness of a rdiograph
What is Density
300
3 types of radiation
What is Primary, Secondary and Scatter
300
allows the voltage of incoming electric current to the xray machine
What is the transformer
300
fuzzy or blurred area that surrounds an image
What is Penumbra
300
maximum permissible dose (MPD) for the occupationally exposed person to radiation is..
What is 5000 millirem (5.0 rem) per year or
100 mrem per week
400
The difference in degrees of blackness on a radiograph
What is Contrast?
400
-____________structures that allow xrays to pass through them (appear dark)
____________ structures that do not allow xrays to pass through them (appear white)
What is 1.Radiolucent 2. Radiopaque
400
like a filter, is a metal disk with a small opening in the center to control the size and shape of the xray beam as it leaves the tubehead
What is a lead collimator
400
A 70 kvp setting requires a slightly longer exposure time and produces a radiograph with
What is high contrast (fewer shades of gray)
400
for the non occupationally exposed patient the maximum permissible dose is
What is 500 mrem or 5.o millisieverts (mSv) per year
500
Process by which electrons are removed from atoms , causing the harmful effects of radiation in humans
What is Ionization?
500
The ranges of shades of gray to black to white
What is Contrast?
500
filters out the non penetrating,longer wavelength rays
What is the Aluminum Filter
500
A 90 kvp setting requires less exposure time and produces a radiograph that has
What is low contrast (more shades of gray)
500
Equation for lifetime maximum accumulated radiation dose