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Week 11
Week 11 Assignment: Study Stack Exam Review
| Question | Answer |
|---|---|
| 1. Two cGy equals | .02 Gy |
| 2. What is the total average annual radiation equivalent dose for estimated levels of radiation exposure for humans? | 5.5 mSv |
| 3. Which of the following helps shield the global population from exposure to essentially all high-energy, bombarding cosmic rays? | Atmosphere and magnetic field of the Earth |
| 4. The x-ray photon energy required to initiate pair production is | 1.022 MeV |
| 5. What do optically stimulated luminescence dosimeters, thermoluminescent ring dosimeters, and personnel direct ion storage dosimeters have in common? | These devices are all used for personnel monitoring. |
| 6. Some of the advantages of the optically stimulated luminescence (OSL) dosimeter are 1. can be used for up to 1 year. 2. lightweight, durable, and easy to carry. 3. integrated, self-contained, preloaded packet. | All of the options |
| 7. What annual measurements are performed on radiographic and fluoroscopic equipment? X-ray output Fluoroscopic radiation entrance rate kVp accuracy Exposure time accuracy Half-value layer (beam quality) | All of the options |
| 8. Regarding exposure to ionizing radiation, patients who are educated to understand the medical benefit of an imaging procedure are more likely to | suppress any radiation phobia and be willing to assume a small chance of possible biologic damage. |
| 9. What is the total average annual radiation equivalent dose for estimated levels of radiation exposure for humans? | 5.5 mSv |
| 10. As a result of technology and strict FDA regulations, radiation exposure of the public from radioactive consumer products may now be considered: | negligible. |
| 11. What is the maximum period of time that a thermoluminescent ring dosimeter (TLD) may be worn as a personnel device? | 3 months |
| 12. Which of the following is a category of white blood cell that is essential in fighting infections? | Granulocytes |
| 13. When a prediction is made that the number of excess cancers will increase as the natural incidence of cancer increases with advancing age in the population, the risk is considered to be | relative |
| 14. Among the atomic bomb survivors, the number of people living with leukemia has __ since the late 1940s and early 1950s. However, the occurrence rates of other radiation-induced malignancies continued to __since the late 1950s and early 1960s. | slowly declined; escalate |
| 15. The effective dose (EfD) occupational limit for the lens of the eye is | 15 mSv. |
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