Week 1 Flashcards
What is DICOM?
handling, storing, printing, and transmitting information in medical imaging.
What is an X-Ray?
A portion of the electromagnetic spectrum that can pass through tissue.
How is an X-Ray created?
By a machine that converts electricity into electromagnetic radiation.
What does the filament create?
Electrons
What happens when electrons hit the tungsten?
An X-Ray is created
What percent of energy is heat?
99%
What percent of converted energy are X-Rays
1%
What is a focal spot
A small filament to obtain images
What does more millamperage indicate
More X-Rays
What does the KVP indicate
How much exposure you have at the peak of the x-ray
Where is x-radiation filtered?
Through a sheet of aluminum
What do lead shutters determine?
vertical and lateral dimensions
What is a latent image?
An image that becomes real after the image has been processed.
Which capturing system is faster CR or DR?
DR
What is silver activated by?
Light from phosphor
Are activated silver halides latent images?
Yes
How is an image developed?
Conversion of silver halide salt into elemental silver.
Where does the image go after it exits the body?
To the cassette
What does the black on a film indicate?
tightly packed silver
What order should you process a film?
Developer, fixer, wash
What is the grid ratio?
How much lead we are putting infront of the x-ray
What do stationary grids have the possibility on showing on the image?
Fine grid lines
Where do you commonly see grids?
With increased x-rays
