2013 Fiscal Year Final Research Report

Ultra high resolurion 3D imaging close to physical limit

Research Project

Project/Area Number	24656439
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Single-year Grants
Research Field	Material processing/treatments
Research Institution	Kyushu University (2013) Toyohashi University of Technology (2012)
Principal Investigator	TODA Hiroyuki 九州大学, 工学(系)研究科(研究院), 教授 (70293751)
Project Period (FY)	2012-04-01 – 2014-03-31
Keywords	X線マイクロトモグラフィー / シンクロトロン放射光 / 空間分解能 / その場観察 / 球状黒鉛鋳鉄
Research Abstract	We have reported that the wobbling of a rotation stage, which usually causes the degradation of spatial resolution, in some cases brings high resolution. In this study, we have investigated the relationship between blurring during the acquisition of images and spatial resolution. As a result, we have clarified the relationships among the amplitude and patters of blurring, the number of projections and spatial resolution, providing the experimental conditions for high resolution images. We have also applied the findings to the in-situ observation of fatigue behaviors in a ductile cast iron, and succeeded in the clear observation of the fracture behavior at a reasonable high resolution.