Increased collimation decreases the amount of...
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tissue irradiation and decreases scatter
sponges
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radiolucent positioning aid
,OID
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the distance between the object being viewed on the image receptor;
when increased it will decrease exposure to the IR, decrease spatial
resolution and increase contrast and distortion in digital and film screen; it
will decrease density of film screen
Declared Pregnant women:
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deep dose 1mSv
absorbed radiation
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occurs when incoming photons eject inner shell electrons which quickly
loses energy
reflective layer
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, reflects light released during the reading toward the photodetector
fixed aperture
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flat piece of lead with a hole in it below the tube window
A change in kV by 15% is equal to a change in mAs by...
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a factor of 2
contrast
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differences in brightness or densities
latent image
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, invisible image created after exposure but before processing
fog
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generalized exposure reducing contrast as a result of improper storage
primary radiation
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x-ray photons exiting the tube through the glass. Window and passing
through the aluminum filter; filtered x-ray photon beam
Whole body/cumulative effective dose limit (lifetime effective dose) for occupational
exposure:
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10mSv times age in years
Any space between the part and the IR will cause...
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tissue irradiation and decreases scatter
sponges
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radiolucent positioning aid
,OID
Give this one a try later!
the distance between the object being viewed on the image receptor;
when increased it will decrease exposure to the IR, decrease spatial
resolution and increase contrast and distortion in digital and film screen; it
will decrease density of film screen
Declared Pregnant women:
Give this one a try later!
deep dose 1mSv
absorbed radiation
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occurs when incoming photons eject inner shell electrons which quickly
loses energy
reflective layer
Give this one a try later!
, reflects light released during the reading toward the photodetector
fixed aperture
Give this one a try later!
flat piece of lead with a hole in it below the tube window
A change in kV by 15% is equal to a change in mAs by...
Give this one a try later!
a factor of 2
contrast
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differences in brightness or densities
latent image
Give this one a try later!
, invisible image created after exposure but before processing
fog
Give this one a try later!
generalized exposure reducing contrast as a result of improper storage
primary radiation
Give this one a try later!
x-ray photons exiting the tube through the glass. Window and passing
through the aluminum filter; filtered x-ray photon beam
Whole body/cumulative effective dose limit (lifetime effective dose) for occupational
exposure:
Give this one a try later!
10mSv times age in years
Any space between the part and the IR will cause...
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