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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Time-Distance Relation<br />
Rule: The exposure time (T) required for a given exposure is directly<br />
proportional to the square <strong>of</strong> the focus-film distance (D). Thus:<br />
To solve for either a new Time (T2) Or a new Distance (D2), simply follow the<br />
steps shown in the example above.<br />
Charlie Chong/ Fion Zhang
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