Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
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

Chapter 9

SWGTC-R/T-Chapter 9-Wallace-Grids & the Bucky

QuestionAnswer
using a grid <increases/decreases> radiographic contrast increases
what do grids do to scatter? grids absorb scatter and prevent scatter from reaching the film
each strip on a grid is separated by a space called a/an __________. interspace
the interspace can be made of : cardboard fiber, aluminum or plastic
the interspace material is __________, which means that it does not absorb the x-ray beam. radiolucent
most common grid focused grid
strips in center are parallel to each other, angled at the sides on this grid focused grid
all strips are parallel on this grid parallel grid
this grid pattern absorbs the most scattered radiation crossed/cross-hatch grid
grid ratio relationship between the height of the lead strips and the distance between them
What will absorb more radiation, a high ratio grid (16:1) or a low (6:1)? High (16:1)
Grid frequency number of grid lines per inch
unwanted absorption of primary radiation by the grid grid cut-off
What will cause grid cut-off when using a focused grid? wrong SID. grid is angled against the grid lines, grid is angled in relation to the x-ray beam, grid is upside down
focal range acceptable range of SID's that can be used with a focused grid
Created by: kristinalyn