Hirano Masatsugu, Yamasaki Katsuhito, Okada Hiroshi, Sakurai Takashi, Kondoh Takeshi, Katafuchi Tetsuro, Sugimura Kazuro, Kitazawa Sohei, Kitazawa Riko, Maeda Sakan, Tamura Shinichi
Niihama National College of Technology, Yagumo, Ehime 792-8580, Japan.
Radiat Med. 2005 Aug;23(5):386-9.
We simulated refraction contrast imaging in overlapping objects using the ray tracing method. The easiest case, in which two columnar objects (blood vessels) with a density of 1.0 [g/cm3], run at right angles in air, was calculated. For absorption, we performed simulation using the Snell law adapted to the object's boundary. A pair of bright and dark spot results from the interference of refracted X-rays where the blood vessels crossed. This has the possibility of increasing the visibility of the image.
我们使用光线追踪方法对重叠物体中的折射对比成像进行了模拟。计算了最简单的情况，即两个密度为1.0[克/立方厘米]的柱状物体（血管）在空气中成直角排列。对于吸收，我们使用适用于物体边界的斯涅尔定律进行模拟。在血管交叉处，折射X射线的干涉产生了一对明暗斑点。这有可能提高图像的可见性。
