합성 Cast와 석고의 두께에 따른 촬영조건 보정에 관한 실험

A experimental study on conversion X-ray exposure factors according to plaster thickness and synthetic cast

&nbsp;&nbsp;Composition and X-ray transmission Property very different plaster of paris to synthetic cast.<BR>&nbsp;&nbsp;We experiment on conversion exposure factor according to thickness of plaster of paris and synthetic cast. From the result of the this study, it could be concluded as follows.<BR>&nbsp;&nbsp;In synthetic cast radiography(3 layer, 4 ㎜) can make same density with changes in 8 kVp or 53%mAs.<BR>&nbsp;&nbsp;Wet plaster of paris(6 layer, 5.3 ㎜) can make same density with change of up to 11 kVp or 81%mAs. To the contrary dry plaster of paris(6 layer, 5.3 ㎜) can make same density with change of up to 10kVp or 73%mAs.