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RAD 201 Exam 1
| Question | Answer |
|---|---|
| Method of explaining radiation to the public? | BERT Method |
| Advantages of the BERT Method are: | ALL of the options- does not imply radiation risk, means for comparison; emphasizes radiation is an innate part of environment and provides an easy to understand answer for pts |
| Best overall measure of the biologic effects of ionizing radiation? | Effective dose |
| What organization was founded in 2007 that promotes pediatric specific scan protocols? | Alliance for Radiation Safety in Pediatric Imaging |
| millisievert [mSv] is equal to | 1/1000 of a sievert |
| Form of radiation capable of creating electrically charged particles by removing orbital electrons from the atom of matter through which it passes | Ionizing radiation |
| Cardinal principles of radiation protection | Time, Distance, Shielding |
| Basis for determining whether an imaging procedure is justified? | Diagnostic Efficacy |
| Unit used to measure radiation exposure | Coulomb per Kilogram |
| Most common unit of measure for Equivalent Dose | Millisievert |
| Higher frequencies are associated with: | Shorter wavelengths and higher energies |
| Which radiation quantities use the same unit of measure? | Effective and Equivalent dose |
| Mass of an alpha particle is | 4 times mass of a hydrogen atom; positive charge 2x that of an electron |
| All directional scatter | Compton interaction |
| Number of x-rays emitted per inner shell vacancy during photoelectric absorption | Fluorescent yield |
| What 2 interactions btwn X-radiation and matter may result in the production of small angle scatter? | Coherent & Compton Scattering |
| radiation that occurs when an electron spontaneously drops down from an outer shell of an ionized atom to fill a vacancy in an inner shell of that atom? | Characteristic photon [or x-ray] |
| The probability of occurrence of photoelectric absorption _________ as the energy of the incident photon decreases and the atomic number of the irradiated atoms _________. | increases markedly; increases |
| Compton scattering is synonymous with | incoherent scattering |
| by products of photoelectric absorption | Photoelectron and characteristic photon |
| Which of the following is not a type of interaction between x-radiation and biologic matter? | Bremsstrahlung |
Created by:
bailey.holden13