Understanding NRT- Reading 1- 2 of 2- Radiogaphic Testing A
Understanding nrt reading 1- 2 of 2- radiogaphic testing a
Understanding nrt reading 1- 2 of 2- radiogaphic testing a
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Example: Suppose that with a given exposure time and kilovoltage, a<br />
properly exposed radiograph is obtained with 5mA (M1) at a distance <strong>of</strong><br />
12 inches (D1), and that it is desired to increase the sharpness <strong>of</strong> detail in the<br />
image by increasing the focus-film distance to 24 inches (D2). The correct<br />
milliamperage (M2) to obtain the desired radiographic density at the<br />
increased distance (D2) may be computed from the proportion:<br />
Charlie Chong/ Fion Zhang
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