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Regarding factors affecting X-ray emission: a. The tube voltage affects the maximum energy of Bremsstrahlung radiation b. Due to inherent tube filtration, the maximum energy of photons measured in keV is slightly lower than the tube potential in kV c. Beam filtration affects both the quantity and quality of the X-ray beam d. Increasing peak kV (kVp) increases the quantity and quality of the emitted X-ray beam e. Increasing the tube current decreases the half-value layer (HVL) of the beam |
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Answer» a. True. b. False. Filtration does not affect the maximum energy of the beam spectrum, which is always equal in keV to the tube potential in kV. c. True. Filtration selectively removes the lower energy photons so it reduces the quantity. It shifts the mean energy of the remaining photons to a higher level, so it increases the beam quality. d. True. e. False. The HVL depends on the quality of radiation (energy spectrum), which is not changed by altering mA. |
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