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ARRT Review
Radiation Safety Part 6 - Sources of Radiation
Question | Answer |
---|---|
According to the NCRP #160, what is the total average amount of radiation the public? | 6.25 msv (doubled since 1980's report) |
According to the NCRP #160, what is the natural background average amount of radiation the public? | 3.11 msv |
According to the NCRP #160, what is the medical radiation average amount to the public? | 3.00 msv (not counting occupational, consumer, etc) |
What is the % that background radiation contributes to the total amount to the public? | 50 % |
What is the % that medical radiation contributes to the total amount to the public? | 48 % |
What is the reason for the increase of total radiation dose? | CT |
How much does CT comprise of medical radiation dose? | 24% |
A Chest x-ray has an average effective dose of _____ | .1 msv |
The largest source of natural background is contributed to: | Radon |
What sources contribute to natural background radiation? | Terrestrial, internal, space |
Natural sources of radiation include which of the following: dental, terrestrial, internal? | terrestrial, internal only |