CRDR trigger 2

X-ray film encased in a light-proof cassette

what material does film-screen radiography uses to capture an image?

computed radiography

what material does computed radiography uses to capture an image?

true

is true or false? in computed radiography after using phosphors returns to stable state and be re-use again unto next procedure?

false

Latent image formed in film crystals are turned to manifest image after processing and film can be re-used.

dark room

how does film-screen radiography processes?

CR processor with computer

how does computed radiography processes?

Picture archiving communication system (PACS)

it is where the images or radiographs is stored in radioogy.

Protective layer

This is a very thin, tough, clear plastic that protects the phosphor layer.

Phosphor layer (or active layer)

• This is a layer of photostimulable phosphor that “traps” electrons during exposure.

• This layer may also contain a dye that differentially absorbs the stimulating light to prevent as much spread as possible.

Reflective layer

• This is a layer that sends light in a forward direction when released in the cassette reader.

• This layer may be black to reduce the spread of stimulating light and the escape of emitted light.

Conductive layer

This is a layer of material that absorbs and reduces static electricity.

color layer

this layer is located between the active layer and the support, that absorbs the stimulating light but reflects emitted light.

support layer

This is a semi-rigid material that gives the imaging sheet some strength.

backing layer

this layer contains polymer material that protects the back of the cassette.

Optically Stimulated Luminescence (OSL)

Light emission from a phosphor when stimulated by a laser after radiation exposure.

thermoluminescent dosimeter (TLD)

A device that emits light when heated, used to measure radiation exposure.

ground state

refers to the lowest energy state of an atom or electron; the normal, stable condition before energy absorption.

ghosting

it is residual image that remains on the imaging plate after an exposure, even though the plate was supposed to be erased.

Laser beam

The component in the CR reader that stimulates trapped electrons to release energy.

europium

The material that acts as an activator and storage site for latent image formation in PSP.

Photostimulable Luminescence (PSL)

The process of releasing stored energy in a phosphor by exposure to visible light

cassette-less system/DR

is a cassette-less system that uses computerized worklists for patient-image matching and allows for real-time digital imaging.

DICOM/JPG, BMP, TIFF

The format in which CR images can be exported for easier sharing and viewing.

teleradiology

A CR advantage that allows multiple professionals to view the same image from different locations

barcode

The component of the cassette that must be scanned for patient matching.