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Rad106 Final
| Question | Answer |
|---|---|
| The HVL is lowered by a decrease in | kVp |
| Increasing kVp increases the _________ of an x-ray beam. | Energy |
| The main purpose of added filtration is to reduce | Patient dose |
| X-ray intensity is directly proportional to | mAs |
| X-ray intensity is proportional to | kVp2 |
| A low-quality beam would also have low | penetrability |
| An increase of 15% in kVp is equivalent to increasing mAs | 100% |
| The number of x-rays in the useful beam defines x-ray | Intensity |
| A 10% increase in kVp has ________ effect on x-ray intensity than/as a 10% increase in mAs. | Much greater |
| The half value layer (HVL) of an x-ray beam is a measurement of beam _______. | Quality |
| The penetrability of an x-ray beam is called x-ray | Qualitty |
| The photoelectric effect is an interaction between an x-ray and a(n) _________ electron that results in total x-ray absorption. | Inner-shell |
| High kVp techniques reduce | Patient dose |
| Coherent scattering is an interaction between _______ x-rays and atoms. | Low energy |
| Compton scattering is an interaction between an x-ray and a(n) _________ electron that results in ionization and loss of energy. | Outer-shell |
| If 5% of an incident beam is transmitted through a body part, then 95% of that beam was | attenuated |
| Barium is a good contrast agent because of its | High atomic number |
Created by:
McKenna0410