Chapter 11
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Milliamperage (mA) | A measurement of xray tube current
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| X-ray Quantity | A measure of the number of xray photons in the useful beam
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| X-ray Quality | Measurement of the penetrating ability of the xray beam
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| Direct Square Law |
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| 15 Percent Rule | An increase in kVp by 15 percent that causes a doubling in exposure
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| Prime Factor | Factors related to xray emission directly under control of radiographer
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| Milliamperage-second (mAs) | The product of tube current and exposure time
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| Reciprocity Law | The density on an xray should remain unchanged as long as the intensity and duration of exposure remains the same
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| Penetrability | The ability of xrays to pass through structures and tissues
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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