overall review Flashcards
insulating oil does what
dissipates the heat
what side is the molybdenum focusing cup on
cathode side
what is the tungsten target embedded in
copper
to increase the quantity of free electrons inside the tubs the operator should
increase the mA
the cervical lead collar is to protect the patients ?
thyroid gland
collimators main function is it
limit size of x-ray beam
t/f; the higher the kvp the greater the penetrating power
true
cells most sensitive to radiation
blood cells
heart of the xray generating system
X-ray tube
which wavelengths are stronger and recommended
shorter wavelengths
occupational exposed to radiation amount
5.0 rem/year or 0.05 sv/year
public exposed to radiation amount
0.1 rems/year or 0.001 sv/year
why do you have to put the lead apron straight
it eventually cracks and allows radiation leakage
faster the film
less radiation exposure
larger the crystals
the faster the film
quality or wavelength and energy of the X-ray beam are controlled by what
Kvp
what does the aluminium disk do
filters out non penetrating longer wavelengths
long wavelength =
low frequency
short wavelength=
high frequency
high energy, ionizing electromagnetic radiation
x-radiation
wavelength
distance between the crest of on wave to the next
frequency
number of wavelengths the pass a given point
produces electrons when heated
tungsten filament
serves as a focal spot and converts bombarding electrons into x-ray photons.
tungsten target
In the x-ray tube, the amperage, or number of electrons passing through the cathode filament, can be increased or decreased by the
mA
The voltage of the x-ray tube current, or the current passing from the cathode to the anode, is controlled by the
kip
cathode is found by where
tungsten filament
anode is found by where
tungsten target
