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Collimate and filter the non-useful long wavelength x-rays.
Whats the function of the primary x-ray beam?
When the x-ray machine is turned ON the filament releases electrons that form an electron cloud, which is known as ?
X-rays and heat
When the electrons from the cathode hit the tungsten target, energy is produced in two forms. ?
Heat (Be sure to remember this).
99% of the energy produced is _____and only 1% is in the form of x-rays.
True (Remember this)
True/False: Electrons only travel in one direction-from the cathode to the anode.
General Radiation or Bremsstrahlung (breaking) x-rays.
What is produced if the electrons are slowed or moved from their path when they collide with the tungsten target?
What is produced when electrons from the cathode collide with atoms on the anode, and an electron is released from its shell causing electrons to shift to fill the space of the ejected electron ?
The answer is to eject an electron from its shell. That is because Characteristic radiation is more penetrating then General radiation.
Which do you think requires more energy—to eject an electron from its shell or to move an electron from its path?
If the x-rays have less energy they will have a greater chance of being absorbed by the object and as a result the object will appear more (radiopaque/radiolucent).
Affects the number of electrons released by controlling the temperature of the filament at the cathode.
60 (similar to 60 minutes in 1 hour. One easy way to remember the conversion is to think of a clock. ¼ around the clock is 15 minutes and ¼ second equals 15 impulses. ½ way around the clock is 30 min.; ½ second equals 30 impulses. ¾ second equals 45 impulses.)
There are __ impulses in 1 second.
kVp, filtration, mA, exposure time and PID length
Factors that influence density by affecting the number of x-rays that reach the film.
If there is excessive safelight.(If the image of the coin can be seen there is too much safelight)
The coin test is used to determine ?
developing time is influenced the most by temperature
the thermometer is placed in the developer solution because?
films will lose definition over time and therefore cannot be used for permanent records
Used to determine if an object is located on the buccal or lingual aspect of a radiograph.
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