Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

DR & PACS ch4

Digital Radiographt & Pacs- Carter & Veale Chapter 4

QuestionAnswer
What are the parts of the Digital Imaging cassette? The imaging plate and the reader.
What are the different layers in the IP? Protective layer, phosphor layer, reflective layer, conductive layer, color layer, support layer, backing layer.
What is photostimulation and what is its purpose in the IP? Traps the electrons during exposure.
How is the IP read? It is inserted into a reader that removes the imaging plate and scans it with a laser to release the stored electrons.
What is the phosphor layer? A layer of photostimulable phosphor that traps electrons during exposure.
What is the protective layer? A very thin, touch, clear plastic that protects the phosphor layer.
What is the reflective layer? This layer sends a light in a forward direction when it is released in the cassette reader.
What is the conductive layer? A layer of material that absorbs and reduces static electricity.
What is the color layer? Absorbs the stimulating light but reflects emitted light.
What is the support layer? A semi-rigid material that gives the imaging sheet some strength.
What is the backing layer? A soft polymer that protects the back of the cassette.
How is the imaging plate erased? By returning most of the electrons to a lower energy state, removing the image from the plate.
What are barcodes used on imaging plates? Links the imaging plate to the patient information and is used to identify the IP/cassette.
What do Barium fluorohalide crystals do? Release light energy in the IP, which is then stored in the conductive layer.
What does a photomultiplier do? amplifies the light and sends it to a signal digitizer.
What does the digitizer do? assigns a numerical value to each pixel in a matrix according to the brightness of the light and its position.
How is spatial resolution determined? The thickness of the phosphor layer and the number of pixels.
Created by: jenny.dvorak
Popular Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards