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

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.

Question

What is the source of electrons in the x-ray tube?
click to flip
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know

Question

Define Bremsstrahlung?
Remaining cards (19)
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

RADT: 465 QC

ARRT registry review covering equipment content area.

QuestionAnswer
What is the source of electrons in the x-ray tube? Heated Cathode. Radiography Prep. pg. 437
Define Bremsstrahlung? Slowing of high speed electrons, transfers energy into x-rays. Radiography Prep. pg. 437
What percentage of radiation does Brem. make up? 70-80% of x-ray bean. Radiography Prep. pg. 438
Define Characteristic radiation? High speed electron encounters atom and ejects a K shell electron. Radiography Prep. pg. 438
Define wavelength? The distance between two consecutive wave crests. Radiography Prep. pg. 439
Define Frequency? The number of cycles per sec. Radiography Prep. pg. 439
What is frequency measured in? Hertz. Radiography Prep. pg. 439
Define Photoelectric effect? Low energy x-ray photon ejects an inner shell electron and that spot is filled by an outer shell electron. Radiography Prep. pg. 440
Define Compton scatter? High energy x-ray photons eject outer shell electron. Radiography Prep. pg. 440
T/F Coherent scatter is often used in diagnostic radiology? False. Radiography Prep. pg. 441
T/F radiations from the electromagnetic spectrum all travel at the same velocity but different wavelengths? True. Radiography Prep. pg. 441
T/F Wavelength and Frequency are directly related? False. Radiography Prep. pg. 441
Give an example of fixed radiography equipment? Fluoroscopy. Radiography Prep. pg. 442
Define amplitude? Height of the wave. Radiography Prep. pg. 444
T/F x-ray transformers operate on the principle of mutual induction? True. Radiography Prep. pg. 446
Equation for autotransformer and transformer laws? Ns/Np=Ip/Is, Vs/Vp=Ns/Np
Step-down transformers are also called what? Filament transformers. Radiography Prep. pg. 448
What is the positive electrode? Anode. Radiography Prep. pg. 451
What is the negative electrode? Cathode. Radiography Prep. pg. 451
What are the three portions of the x-ray circuit? Primary, secondary, and filament circuits. Radiography Prep. pg. 465
Created by: nwbatz
Popular Radiology 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