Density
Affects QUANTITY of radiation reaching the IR as discussed previously
kVp
other name for SID
Focal Film Distance
Spatial resolution refers to the smallest object that can be detected in an image.
Spatial Resolution
The layer of the radiographic intensifying screen closest to the radiographic film
Protective Coating
Also called as nonscreen film and special application film
Direct exposure film
A 15% increase in kVp has the same effect on exposure to the IR as
doubling the mAs
The differences between photographic densities in a radiograph
Radiographic Contrast
refers to images of objects that appear longer than the true objects.
Elongation
is a proposed theory to describe latent image formation
Gurney Mott Theory
Blue-sensitive and green-sensitive films
ORTHOCHROMATIC FILM
____ pathology will cause an increase in radiographic density.
Destructive
If the kVp is _____, more scattered radiation reaches the image receptor, and contrast decreases, causing the image to appear grayer
increased
refers to images that appear shorter than the true objects.
Foreshortening
Thickness of Reflective layer
Approximately 25 μm thick
is the exposure of an emulsion caused by light from the opposite radiographic intensifying screen.
Crossover
A 15% decrease in kVp has the same effect on exposure to the IR as
decreasing the mAs by half
The ability of the primary beam to penetrate anatomic structures / materials
Penetrability
refers to an increase in the image size of an object compared with its true or actual size.
Magnification
The ACTIVE INGREDIENT of the radiographic emulsion
Silver Halide Crystal
Sensitive to the entire visible light spectrum
PANCHROMATIC FILM
Formula for kVp
kVp=2(t)+c
the ratio of the height of the lead strips (h) to the distance between two strips (d)
Grid Ratio
_____ OID results to ______ magnification and
increased recorded detail.
Minimum, decreased
Full name of Sir tristan
John Tristan Yancy Go
Process where LATENT image is converted into MANIFEST IMAGE
DEVELOPING