Basic trial for establishment of monochromatic x-ray imaging

2014 Fiscal Year Final Research Report

• Project/Area Number: 25670541
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Radiation science
• Research Institution: Hiroshima International University
• Principal Investigator: MAEDA Koji 広島国際大学, 保健医療学部, 講師 (20330706)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 単色Ｘ線撮影 / Ｘ線回折 / Ｘ線ＣＴ / Ｋ吸収端 / monochromatic x rays / x-ray CT / x-ray diffraction

Outline of Final Research Achievements

X rays in clinical use are white x rays that have broad energy band, so the strict energy selection is impossible. Then, I attempted a diffraction method for generated monochromatic x rays. The diffracted monochromatic x rays are produced by Bragg diffraction on a silicon single crystal and are imaged as Laue spot on the reflected position. However, it is so difficult to detect of Monochromatic x-rays because of their low dose. Recently, the image detectors i.e. Flat Panel Detector, have higher sensitivity and detectability, so the monochromatic imaging is proceeded. Therefore, the monochromatic Computed Tomography and K-edge subtraction technique is performed by my trial research.

Free Research Field

医学放射線物理学