Trial of X-Ray Grating Interferometry for Phase-Contrast Imaging with a Practical X-Ray Tube<br>— Application of Talbot-Lau Interferometry to Medical Imaging —

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  • 実用X線管を用いたX線格子干渉計の試み<br>―タルボ・ロー干渉計の医用画像への適用―
  • 実用X線管を用いたX線格子干渉計の試み--タルボ・ロー干渉計の医用画像への適用
  • ジツヨウ Xセンカン オ モチイタ Xセン コウシ カンショウケイ ノ ココロミ タルボ ロー カンショウケイ ノ イヨウ ガゾウ エ ノ テキヨウ

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An imaging system of X-ray grating interferometry, i.e., Talbot-Lau interferometry, was created with a medical X-ray tube, a multi-slit, two X-ray gratings, and an X-ray detector on the basis of design with wave-optic simulation. Imaging performance of the system was examined so that bone cartilage of a chicken wing was depicted clearly with X-ray dose at 3 mGy. Using this imaging system, a small angle scattering image of a cherry was obtained successfully to depict its vascular bundle of the inner structure of the cherry that was invisible in its X-ray absorption image. This imaging trial suggests that the X-ray Talbot-Lau interferometry is a promising tool to detect soft tissue in human body for X-ray image-diagnosis besides the magnetic resonance imaging.<br>

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