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

RADT Rad Protection

ARRT Registry Review Radiation Protection

QuestionAnswer
Tissue Weighting factor represents the relative tissue radiosensitivity of irradiated materials
Type of white blood cell concerned with the immune system that has the greatest radiosensitivity Lymphocytes
Direct effect usually occurs with high or low LET? high-LET
Grids require an increase in kilovoltage or milliampere-seconds? milliampere-seconds
According to the NCRP what is the annual occupational whole-body dose-equivalent limit? 50 mSv
Natural radiation cosmic radiation and elements within earths crust
Human-made radiation medical radiation, nuclear power plants, and nuclear medicine
Radiolysis irradiation of water molecules and formation of free radicals
Late somatic effects occur years after initial exposure and are caused by low chronic exposures
TLDs use? lithium fluoride
Secondary radiation consists of? leakage and scatter radiation
Lead apron are secondary radiation barriers and must contain at least .25 mm
Scattering occurs when there is partial transfer of the photons energy to matter
Absorption occurs when an x-ray photon interacts with matter and disappears
Attenuation reduction in the intensity of an x-ray beam as it passes through matter
Primary radiation barriers must be 7 feet high and must contain 1.5 mm of lead
Rad radiation absorbed dose
low-LET x-rays and gamma rays
alphas high-LET
hypoxic tissue with little oxygen
isobars atoms with the same mass number but different atomic numbers
isotones have the same number of neutrons but different atomic numbers
isomers have same atomic number and mass number
quantity mAs
penetrability kVp
Created by: jodif96