click below
click below
Normal Size Small Size show me how
RAD201
| Question | Answer |
|---|---|
| X-rays are a form of which of the following kinds of radiation? | Ionizing |
| The millisievert (mSv) is equal to | 1/1000 of a sievert. |
| Which of the following is a form of radiation that is capable of creating electrically charged particles by removing orbital electrons from the atom of normal matter through which it passes? | Ionizing radiation |
| What unit is used to measure radiation exposure in the metric International System of Units? | Coulomb per kilogram |
| Which of the following is a method of explaining radiation to the public? | BERT |
| What is the half-life of radon-220? | 54.5 seconds |
| The first decay product of radium is | radon |
| Particles associated with electromagnetic radiation that have neither mass nor electric charge and travel at the speed of light are | X-ray photons |
| X-rays are carriers of | human-made electromagnetic energy. |
| The x-ray photon energy required to initiate pair production is | 1.022 MeV. |
| Compton scattering is synonymous with | incoherent scattering. |
| What is the effective atomic number of compact bone? | 13.8 |
| Fluorescent radiation is also known as | characteristic radiation. |
| The symbol Z indicates | Atomic number of an atom |
| The total kinetic energy released in a unit mass (kilogram) of air and expressed in metric units of joules per kilogram is | Air Kerma |
| The whole-body TEDE regulatory limit for exposed personnel is _____________ and ______________ for the general public. | 0.05 Sv; 0.001 Sv |
| What instrument can be calibrated to read air kerma? | Standard, or free-air, ionization chamber |
| If 400 people receive an average effective dose of 0.25 Sv, what is the collective effective dose? | 100 person-Sv |
| Among physicians, cancer deaths attributed to x-ray exposure were reported as early as | 1910 |
| Which of the following formulas is used to calculate effective dose? | EfD = D × WR × WT |