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
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Milliamperage-Distance Relation<br />
The milliamperage employed in any exposure technique should be in<br />
conformity with the manufacturer's rating <strong>of</strong> the x-ray tube. In most<br />
laboratories, however, a constant value <strong>of</strong> milliamperage is usually adopted<br />
for convenience.<br />
Rule: The milliamperage (M) required for a given exposure is directly<br />
proportional to the square <strong>of</strong> the focus-film distance (D). The equation is<br />
expressed as follows:<br />
Charlie Chong/ Fion Zhang
Change language