Recent progress in grating-based microscopic X-ray phase tomography

被引：2

作者：

Momose, Atsushi ^{[1
]}

Ueda, Ryosuke ^{[1
]}

Cai, Mingjian ^{[1
,2
]}

Zhao, Zhuoxuan ^{[1
,2
]}

Kalirai, Sam ^{[3
]}

Stan, Maderych ^{[3
]}

Irwin, Jeff ^{[3
]}

Kawakami, Hiroki ^{[4
]}

Zangi, Pouria ^{[5
]}

Meyer, Pascal ^{[5
,6
]}

Boerner, Martin ^{[5
,6
]}

Schulz, Joachim ^{[7
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

[2] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

[3] Carl Zeiss Xray Microscopy Inc, Pleasanton, CA 97588 USA

[4] Hamamatsu Photon KK, Electron Tube Div, 314-5 Shimokanzo, Shizuoka 4380193, Japan

[5] Karlsruhe Inst Technol, Inst Microstruct Technol, Hermann von HelmholtzPl 1, D-76344 Eggenstein Leopoldshafen, Germany

[6] Karlsruhe Nano Micro Facil, Hermann von HelmholtzPl 1, D-76344 Eggenstein Leopoldshafen, Germany

[7] Microworks GmbH, Schnetzlerstr 9, D-76137 Karlsruhe, Germany

来源：

DEVELOPMENTS IN X-RAY TOMOGRAPHY XIV | 2022年 / 12242卷

基金：

日本科学技术振兴机构;

关键词：

grating; interferometry; phase tomography; X-ray microscopy; spatial resolution; super-resolution; COMPUTED-TOMOGRAPHY; CONTRAST;

D O I：

10.1117/12.2636393

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

X-ray phase imaging with grating interferometers, such as the Talbot interferometer, is widely performed even with a laboratory X-ray source. However, the achievable spatial resolution is normally limited by the period of gratings. In this work, two laboratory-based apparatuses are developed to overcome the constraint of the spatial resolution. One is the combination of a commercially available FZP-based X-ray imaging microscope and Lau interferometer optics. The two-step deconvolution approach is explained to attain phase tomography. The other is a sub-period super-resolution X-ray phase imaging, which is based on the sample-scanning scheme across the beamlet array formed by a triangular phase grating. A proof-of-concept result of the super-resolution approach is presented.

引用

页数：10

共 44 条

[1] X-ray microtomography (mu CT) using phase contrast for the investigation of organic matter [J].