RADT 465 - Rad Prot Word Scramble
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| Question | Answer |
| (T/F) Oxygenated tissue is more sensitive to radiation. | True (Lange Q&A, 10th ed, Pg. 148) |
| (T/F) Stochastic/probabilistic effects are threshold dependent and increase in severity as the dose increase. | False, stochastic/probabilistic effects do not have a threshold dose and do not increase in severity as dose increases (Lange Q&A, 10th ed, Pg. 148) |
| Radiation from sources such as food, radioactive gas, and radioactive minerals are all considered this category of exposure. | Natural Background/Environmental (Lange Q&A, 10th ed, Pg. 148) |
| What is the largest source of natural background radiation? | Radon (Lange Q&A, 10th ed, Pg. 148) |
| What is the annual occupational whole body dose limit? | 50 mSv or 5 rem (Lange Q&A, 10th ed, Pg. 148) |
| What is the occupational dose limit for a pregnant radiographer? | 5 mSv or 0.5 rem (Lange Q&A, 10th ed, Pg. 148) |
| What is the annual occupational whole body dose for students under 18 years? | 1 mSv or 0.1 rem (Lange Q&A, 10th ed, Pg. 148) |
| Which cells are the most radiosensitive? | Lymphocytes (Lange Q&A, 10th ed, Pg. 149) |
| Which cells are the least radiosensitive? | Nerve Cells (Lange Q&A, 10th ed, Pg. 149) |
| Do muscle cells have high radiosensitivity or low radiosensitivity? | Low Radiosensitivity (Lange Q&A, 10th ed, Pg. 149) |
| Lithium fluoride crystals are found in this type of dosimeter. | Thermoluminescent Dosimeters (TLDs) (Lange Q&A, 10th ed, Pg. 150) |
| Aluminum oxide crystals are found in this type of dosimeter. | Optically Stimulated Luminescence (OSLs)(Lange Q&A, 10th ed, Pg. ) |
| What are two other names for Compton scatter? | Classic Scatter and Thompson Scatter (Lange Q&A, 10th ed, Pg. 151) |
| What is the formula for the inverse square law? | (Intensity 1 / Intensity 2) = (Distance 2 Squared / Distance 1 Squared) (Lange Q&A, 10th ed, Pg. 151) |
| What is the Law of Bergonie and Tribondeau? | Cells are more radiosensitive if they are immature/undifferentiated, highly mitotic/multiply quickly, and if they are young (the younger the cells the more sensitive). (Lange Q&A, 10th ed, Pg. 151) |
| What is considered secondary radiation? | Leakage and Scatter Radiation (Lange Q&A, 10th ed, Pg. 151) |
| What does HVL mean? | HVL or Half Value Layer refers to the thickness of a material that will decrease the intensity of a beam to half of its original value (Lange Q&A, 10th ed, Pg. 152) |
| What is the minimum thickness of lead in a lead apron? | It must contain at least 0.25 mm Pb (Lange Q&A, 10th ed, Pg. ) |
| (T/F) The control booth/area is considered to be a primary protective barrier. | False, the control booth/area is not considered to be a primary protective barrier since the primary/useful beam should not be directed toward it. The control booth/area is considered a secondary barrier. (Lange Q&A, 10th ed, Pg. 154) |
| Radiation leakage from the tube housing should never exceed this amount. | 100 mR/h at 1 m (Lange Q&A, 10th ed, Pg. 156) |
| What is the SI equivalent to Rem? | The Sievert (Sv) (Lange Q&A, 10th ed, Pg. 159) |
| What is the SI equivalent to Rad? | The Gray (Gy) (Lange Q&A, 10th ed, Pg. 159) |
| How long should the exposure controller cords be on mobile radiography units? | The cord should allow a technologist to stand at least 6 feet away from the x-ray tube. (Lange Q&A, 10th ed, Pg. 163) |
| How thick should the lead be in a primary protection barrier? | They should contain 1.5 mm or 1/16 inch of lead (Lange Q&A, 10th ed, Pg. 163) |
| Which cells are considered to be the most radiosensitive in the body? | Lymphocytes (Lange Q&A, 10th ed, Pg. 174) |
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