Ray tracing analysis of overlapping objects in refraction contrast imaging.
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.
Hirano
Masatsugu
M
Niihama National College of Technology, Yagumo, Ehime 792-8580, Japan.
Yamasaki
Katsuhito
K
Okada
Hiroshi
H
Sakurai
Takashi
T
Kondoh
Takeshi
T
Katafuchi
Tetsuro
T
Sugimura
Kazuro
K
Kitazawa
Sohei
S
Kitazawa
Riko
R
Maeda
Sakan
S
Tamura
Shinichi
S
D000792:Angiography / Q000379:methods; D016477:Artifacts; D003198:Computer Simulation; D003287:Contrast Media; D006801:Humans; D008962:Models, Theoretical; D009010:Monte Carlo Method; D011856:Radiographic Image Enhancement / Q000379:methods*; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation; D014965:X-Rays
D003287:Contrast Media