1.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.

12.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.

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rad 201 week 7

Week 7 Assignment: Study Stack Exam Review

Question	Answer
1.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.
2. What is the total average annual radiation equivalent dose for estimated levels of radiation exposure for humans?	5.5 mSv
3.As a result of technological advances since the 1970s and strict FDA regulations, radiation exposure of the general public from consumer products containing radioactive material may now be considered shortened.”	negligible.
4.Which of the following are early tissue reactions of ionizing radiation that were experienced by early radiation workers? 1. Diffuse redness of skin 2. Blood disorders 3. Organ atrophy 4. Intestinal disorders	1, 2, and 4 only
5.What is the maximum period of time that a thermoluminescent ring dosimeter (TLD) may be worn as a personnel device?	3 months
6. The personnel direct ion storage dosimeter provides an instant read-out of dose information when connected to a computer via a connector such as a (an)	universal serial bus (USB).
7. Two cGy equals	.02 Gy.
8. What is the total average annual radiation equivalent dose for estimated levels of radiation exposure for humans?	5.5 mSv
9.What is the half-life of radon-220?	54.5 seconds
10. The Environmental Protection Agency (EPA) recommends that action be taken to reduce elevated levels of radon in homes to a concentration less than	4 pCi/L of air.
11.The x-ray photon energy required to initiate pair production is	1.022 MeV.
12.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.
13.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
14.What annual measurements do medical physicists perform on radiographic and fluoroscopic equipment? X-ray output Fluoroscopy entrance dose rate kVp accuracy Exposure time accuracy Half-value layer (HVL) / beam quality	All of the options
15. The effective atomic number (Zeff) of lithium fluoride (LiF) is equal to	8.2.

Created by: epester

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