Term
|
Definition
| leakage radiation should not exceed |
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Term
|
Definition
|
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Term
|
Definition
| most common x ray tube used |
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|
Term
| because electrons interact with matter and air is matter |
|
Definition
| why is the x ray tube vacuum sealed |
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Term
|
Definition
| inserted in the x ray tube to aid with heat conduction |
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Term
|
Definition
energy
quality
electrical or potential difference
all represent |
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Term
|
Definition
currant
ampers
amps
intensity
quantity
has no energy |
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Term
|
Definition
| voltage and amperage have what kind of relationship |
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Term
|
Definition
| standard us measurement in hz |
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Term
|
Definition
| what percent of electrons that hits the target turns to x rays |
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|
Term
| source to accelerate, move and stop the electrons |
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Definition
| how does electrons move in the tube |
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|
Term
| radiographic/tube rating chart |
|
Definition
| used to determine if a single set of exposure factors are safe to use |
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|
Term
| anode cooling/housing charts |
|
Definition
| used to determine how long an anode will take to heal |
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|
Term
| three types of radiographic charts |
|
Definition
radiographic/tubing chart
anode cooling
cool/housing chart |
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Term
|
Definition
|
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Term
|
Definition
| when voltage drops from peak |
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|
Term
| in positive and negative directions |
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Definition
|
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Term
|
Definition
| fix alternating currant causing electrons to flow in 1 direction which is positive |
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|
Term
| single phase half wave rectifiers |
|
Definition
| allow electrons to flow positive and shuts of when it goes in the negative direction |
|
|
Term
| single phase half wave rectifiers |
|
Definition
| what type of rectifiers double a patients dose |
|
|
Term
| single phase half wave rectifiers |
|
Definition
| what type of rectifiers consumes 2x as much voltage |
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Term
|
Definition
| what type of rectifier allows for 100% ripple |
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|
Term
| single phase full wave rectifiers |
|
Definition
| allows electrons to flow only in the positive direction not negative |
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|
Term
| 3 phase 6 pulse generator |
|
Definition
sends out 3 electrons at a time
voltage ripples to the top of the next ripple
allows 14% voltage ripple
sends out 3 electrons at a time |
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Term
|
Definition
| determines the size of the image |
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Term
|
Definition
| composed of cesium iodide |
|
|
Term
| size of the input phosphor screen |
|
Definition
| between 8-22" in diameter |
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Term
|
Definition
| what device converts x rays to light |
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|
Term
| cesium iodide in the input phosphor |
|
Definition
| what device is made of scintillative material and emits light upon x ray stimulation |
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Term
|
Definition
made of photoemissive material
turns light to electrons through photoemission |
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Term
|
Definition
| causes emission of electrons when stimulated by light |
|
|
Term
| process of photo emission |
|
Definition
| x ray 2 light 2 electrons |
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|
Term
| electrostatic focusing lens |
|
Definition
have a negative charge that focuses and accelerates electrons to the focal point
is made of cesium antinum |
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Term
|
Definition
made of zinc cadium sulphate
converts electrons to intensified light |
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Term
|
Definition
| if the input screen is decreased what happens to the image |
|
|
Term
| absolutely nothing, has to be in mag mode |
|
Definition
| using an image intensifer in regular mode does what to the image size |
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Term
|
Definition
| image size can only be changed in |
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Term
|
Definition
| light photons/x ray photons |
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Term
|
Definition
| diameter of input/diameter of output^2 is what formula |
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Term
|
Definition
| flux gain * minification gain gives you |
|
|
Term
| off focus or stem radiation |
|
Definition
| electrons leave filament and strike somewhere other than the focal spot and produces x rays inside the x ray tube |
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Term
|
Definition
| dynamic imaging or study of functions |
|
|
Term
| image intensified floroscopy |
|
Definition
discover
when radiograph is brightened enough to see in daylight by Thomas Edison |
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Term
|
Definition
|
|
Term
|
Definition
conventional floro
eyes adjust
night vision
use rods of retina
peripheral vision |
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|
Term
|
Definition
intensified floro
daylight vision
use cones of eyes
gives better acuity
intensifies light 30000x brighter |
|
|
Term
| glass or metal x ray tube |
|
Definition
x ray device that uses
x ray device that use
50-1200 mA
50-125 kvp |
|
|
Term
|
Definition
x ray device that use
x ray device that use
.5-5 mA
80-120 kvp |
|
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Term
|
Definition
| uses dead man switch to activate |
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Term
|
Definition
| radiation absorbed dose/P.T |
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Term
|
Definition
| radiation absorbed by personnel |
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Term
|
Definition
|
|
Term
|
Definition
| another word for roentgen |
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Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
another word for
energy
quality
penetrability
contrast |
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Term
|
Definition
controls
quantity
intensity
output
density |
|
|
Term
|
Definition
controls how long to take an exposure
is combined with mA |
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Term
|
Definition
|
|
Term
|
Definition
| distance between x ray tube and the image receptor |
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Term
|
Definition
| distance between x ray tube and pt |
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Term
|
Definition
| distance between pt and image receptor |
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Term
|
Definition
|
|
Term
| from positive to negative |
|
Definition
| how does all electrons flow |
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Term
|
Definition
| rectification change for 3 phase 6 pulse |
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Term
|
Definition
| rectification change for single phase |
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Term
|
Definition
| rectification change for high frequency |
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Term
|
Definition
| rectifier that do not use rectifier |
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|
Term
|
Definition
digitally monitored
maintain a constant peak
gives the lowest p.t dose |
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Term
|
Definition
| rectifier that gives high quality and quantity |
|
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Term
|
Definition
|
|
Term
|
Definition
how an x ray beam goes through something
reduces x ray quantity and quality as it goes through matter |
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Term
|
Definition
| rectification change for 3 phase 12 pulse |
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|
Term
|
Definition
| occurs after primary radiation is absorbed by matter and exits at a weaker form of radiation |
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|
Term
|
Definition
| what are the prime or controlling factors |
|
|
Term
|
Definition
| radioactivity/ radioactive decay |
|
|
Term
|
Definition
| radioactivity measured in baqueral |
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