Digital Imaging Hardware Components

Oldest monitor in radiology

Cathode Ray Tube

Most commonly used monitor today

Liquid Crystal display

Most expensive and newest monitor in radiology

Plasma screen

Most CRT monitors have ___ lines to be scanned

350

Produces images by shining or or reflecting light through a layer of liquid crystal a series of color filters

LCD monitor

Made up for many fluorescent lights that illuminate to form the color of the image

plasma monitor

measure of how fast the monitor rewrites rthe screen

refresh rate

Refresh rate is also known as

vertical scanning rate

Refresh rate helps to __ __ ___ seen by the user

control the flicker

Higher refresh rate=

control the flicker

Refresh rates on today’s computers are usually

60 and 75 Hz

“brains of the cmputer”

Central processing unit

CPU is the 

processing hardware in computer

Imaging recording device

Charge Couple device

The CCD converts ______ to ____

visible light photons to electrons

Charge coupled device is most often used in 

digital fluoroscopy

data that can be stored or accessed at random from anywhere in main memory in equal amount of times

Random Access memory

data storage device that contains info supplied by the manufactured that cannot be erased

Read only memory (ROM)

data storage device, system contains at least 2 disc drives within a single cabinet that collects as single storage system

Redundant Array of Independent Discs