Term
| x-ray quantity is the. . . |
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Definition
| intensity of the x-ray beam (number of x-rays in useful beam) |
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Term
| what is x-ray quantity (intesity) measured in |
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Definition
| roentgens or milligrays or milliroentgens |
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Term
| what does the roentgen measure |
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Definition
| number of ion pairs produced in air by a quantity of x-rays |
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Term
| how are mAs and x-ray quantity related |
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Definition
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Term
| how is kVp and x-ray quantity related |
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Definition
| x-ray quantity is proportional to the square of the ratio of the kVp; |
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Term
| how is distance and x-ray quantity related |
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Definition
| x-ray quantity(intesity) is inversely proportional to the square of the distance from the source |
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Term
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Definition
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Term
|
Definition
| mAs1/mAs2=SID1(2)/SID2(2) |
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Term
| how much filtration does an x-ray imaging system have |
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Definition
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Term
| what is the purpose of filters |
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Definition
| reduce the number of low-energy x-rays that reach the patient, and patient dose is reduced |
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Term
| what is x-ray penetrability called |
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Definition
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Term
| how is x-ray beam energy and penetrability related |
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Definition
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Term
| how is x-ray quality identified numerically |
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Definition
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Term
| what is the half value layer of an x-ray beam |
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Definition
| the thickness of absorbing material (aluminum) necessary to reduce the x-ray intesity to half of its original value |
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Term
| what are the 2 factors that affect HVL |
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Definition
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Term
| what are the 2 factors that affect x-ray quality |
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Definition
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Term
| how does kVp affect x-ray quality |
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Definition
| as it increases, it also increases the effective energy and penetrability of the beam |
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Term
| how does filtration affect x-ray quality |
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Definition
| as it increases, it increases the quality of the beam |
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Term
| what are the three types of filters |
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Definition
| inherent, added, compensating |
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