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RAD 201 exam 1
| Question | Answer |
|---|---|
| The symbol "Z" indicates: | atomic number of an atom |
| X-rays are carriers of: | human-made electromagnetic energy |
| Compton scattering is synonymous with: | incoherent scattering |
| What is the effective atomic number of compact bone? | 13.8 |
| if two atomic structures have the same density & atomic number but one is twice as thick as the other, the thicker structure will absorb... | twice as many photons |
| particles associated with electromagnetic radiation that have neither mass nor electric charge and travel at the speed of light are... | x-ray photons |
| the x-ray photon energy required to initiate pair production is: | 1.022 mev |
| Annihilation radiation is used in which modality? | positron emission tomography |
| in the electromagnetic spectrum, higher frequencies are associated with...? | shorter wavelengths & higher energies |
| A flight on a typical airliner results in an equivalent dose rate of: | 0.005 to 0.01 mSv/hr |
| cosmic radiation occurs in which two forms? | solar & galactic |
| what is the most common unit of measure of equivalent dose? | Millisievert |
| 2 cGy= | 0.2Gy |
| the half-life of radon 220= | 54.5 secs |
| the first decay product of radium is...? | radon |
Created by:
evanlbates