首页|Theory and verification of moiré fringes for x-ray three-phase grating interferometer

Theory and verification of moiré fringes for x-ray three-phase grating interferometer

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Dual-phase and three-phase grating x-ray interference is a promising new technique for grating-based x-ray differen-tial phase contrast imaging.Dual-phase grating interferometers have been relatively completely studied and discussed.In this paper,the corresponding imaging fringe formula of the three-phase grating interferometer is provided.At the same time,the similarities and differences between the three-phase grating interferometer and the dual-phase grating interferom-eter are investigated and verified,and that the three-phase grating interferometer can produce large-period moiré fringes without using the analyzing grating is demonstrated experimentally.Finally,a simple method of designing three-phase grat-ing and multi-grating imaging systems from geometric optics based on the thin-lens theory of gratings is presented.These theoretical formulas and experimental results provide optimization tools for designing three-phase grating interferometer systems.

x-ray phase contrastphase gratingmoiré fringe

单雨征、葛永帅、杨君、郭大育、蔡学宝、刘晓珂、侯晓文、郭金川

展开 >

Key Laboratory of Optoelectronic Devices and Systems of the Ministry of Education,Key Laboratory of Optoelectronic Devices and Systems of the Department of Education,Guangdong Province,College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen 518060,China

Research Center for Medical Artificial Intelligence,Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,China

Institute of Advanced Science Facilities,Shenzhen 518107,China

Institute of Electronic Paper Displays,South China Academy of Advanced Optoelectronics,South China Normal University,Guangzhou 510006,China

College of Biophotonics,South China Normal University,Guangzhou 510631,China

MinFound Medical Systems Co.,Ltd.,Hangzhou 310018,China

展开 >

LingChuang Research Project of China National Nuclear Corporation国家自然科学基金

12027812

2024

10.1088/1674-1056/ad2bf5

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(5)
  • 33