What does PSL mean?
What does PSP mean?
What does SPS mean?
Storage Phospor Screen
What does IP mean?
What does SP mean?
What does PMT mean?
What does PD mean?
ability to store x-ray energy later and, when stimulated by a laser, free the energy as emitted light
Emission of visible light after excitation by laser light.
Electron tube that converts visible light into an electrical signal.
silicon solid state device sensitive to light. Converts light into an electrical signal.
What is storage phosphor?
Photostimulable phosphor plates emit retained xray energy when stimulated by laser beam
storage phosphor screen
latent image occurs in the form of metastable electrons on these screens...
he white appearance of phosphor particles because of their small size.
something used to bind separate particles together or facilitate adhesion to a surface
What is not necessary for a CR?
What affects the spatial resolution of the CR imaging system?
the diameter of the laser beam
What is an imaging plate?
A photostimulable phosphor bound in a cassette as an image receptor.
Electrons raised to an excited state by x-ray exposure return to the ground state with an immediate emission of light. There is no latent image with these electrons.
A broad spectrum of wavelengths of light
having a variety of colors, multicolored, variegated
The rapid manner in which the laser beam is swept across the imaging plate by oscillating mirrors and lenses.
Europium (Eu) is the activator in a photostimulable phosphor. It is the latent image center in computed radiography.
ʎs and ʎe
an electron in an excited state beyond its normal orbital state
What should be used soon after the erase cycle has been completed?
an imaging plate
The drive mechanism moves the IP constantly is called the:
What is critical for ensuring high spatial resolution?
a laser beam
sampling and quantization
the process of analog-to-digital conversion (ADC)
Where the completed image can be temorarily stored until transferred to a workstation for interpretation or to an archival computer.
What are the 4 principle imaging characteristics of a medical image?
spatial resolution, contrast resolution, noise, and artifacts
How many gray levels does a 14-bit CR have?
CR should be performed at ____________ techniques than screen-film radiography.