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RADT 465
Radiation Protection
Question | Answer |
---|---|
Defines the rate of energy deposited per unit track length through an absorber ((E-6 Radiologic Technology Review (Kettering)) | Linear Energy Transfer (LET) |
As LET increases, the quality factor for a given form of radiation will ((E-6 Radiologic Technology Review (Kettering)) | Increase |
As a cells oxygen level increases, the cell's sensitivity to radiation _______ and its probability of survival _______ ((E-7 Radiologic Technology Review (Kettering)) | Increases, decreases |
Equal doses of radiation that are delivered with time interval separation ((E-7 Radiologic Technology Review (Kettering)) | Fractionation |
Radiation dose that is delivered continuously but at a lower dose rate((E-7 Radiologic Technology Review (Kettering)) | Protraction |
Radiation interaction with water ((E-8 Radiologic Technology Review (Kettering)) | Radiolysis |
When the cells die without attempting to divide ((E-8 Radiologic Technology Review (Kettering)) | Interphase death, apoptosis |
When cell goes through one or more biotic phases and then dies ((E-8 Radiologic Technology Review (Kettering)) | Mitotic (genetic) death |
Which trimester is the most radiosensitive ((E-14 Radiologic Technology Review (Kettering)) | First trimester, because of the large number of stem cells |
This interaction interacts with an outer shell electron of a target atom and removes the electron ((E-16 Radiologic Technology Review (Kettering)) | Compton Effect |
This interaction interacts with an inner (k) shell electron of a target atom and removes the electron ((E-17 Radiologic Technology Review (Kettering)) | Photoelectroc Absorption (effect) |
Which interaction is the primary source of patient radiation exposure ((E-17 Radiologic Technology Review (Kettering)) | Photoelectric Absorption effect |
What are some natural sources of radiation ((E-29 Radiologic Technology Review (Kettering)) | Radon, cosmic, terrestrial |
What is the most effective way of personnel protection from radiation ((E-30 Radiologic Technology Review (Kettering)) | Distance |
What is the minimum thickness for a lead apron ((E-30 Radiologic Technology Review (Kettering)) | 0.5 mm Pb |
Thickness of an absorbing material required to reduce the intensity of radiation to one-half of its original value ((E-30 Radiologic Technology Review (Kettering)) | Half-value layer (HVL) |
This was designed to maintain a predetermined level of light intensity exiting the image intensification tube((E-32 Radiologic Technology Review (Kettering)) | Automatic Brightness Control (ABC) |
What is the minimum source to skin distance for a fluoroscopic unit ((E-32 Radiologic Technology Review (Kettering)) | 15 inches |
What is the minimum source to skin distance for a mobile unit ((E-32 Radiologic Technology Review (Kettering)) | 12 inches |
Defines the unit of radiation exposure in the air ((E-36 Radiologic Technology Review (Kettering)) | Roentgen |
Measures the biological effectiveness of radiation ((E-35 Radiologic Technology Review (Kettering)) | REM |
Measures the amount of energy from the x-ray beam that is transferred to the absorbing object ((E-35 Radiologic Technology Review (Kettering)) | Rad |
What is the SI unit for Rad ((E-35 Radiologic Technology Review (Kettering)) | Gray |
What is the SI unit for Rem ((E-35 Radiologic Technology Review (Kettering)) | Sievert |
What is the SI unit for Roentgen ((E-35 Radiologic Technology Review (Kettering)) | Coulomb/kilogram |
What is the SI unit for Curie ((E-35 Radiologic Technology Review (Kettering)) | Becquerel |
What is the annual occupation exposure to whole body ((E-40 Radiologic Technology Review (Kettering)) | 5 rem (50 mSv) |