首页|Intensity correlation properties of x-ray beams split with Laue diffraction

Intensity correlation properties of x-ray beams split with Laue diffraction

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Beam splitting is one of the main approaches to achieving x-ray ghost imaging,and the intensity correlation between diffraction beam and transmission beam will directly affect the imaging quality.In this paper,we investigate the intensity correlation between the split x-ray beams by Laue diffraction of stress-free crystal.The analysis based on the dynamical theory of x-ray diffraction indicates that the spatial resolution of diffraction image and transmission image are reduced due to the position shift of the exit beam.In the experimental setup,a stress-free crystal with a thickness of hundred-micrometers-level is used for beam splitting.The crystal is in a non-dispersive configuration equipped with a double-crystal monochromator to ensure that the dimension of the diffraction beam and transmission beam are consistent.A correlation coefficient of 0.92 is achieved experimentally and the high signal-to-noise ratio of the x-ray ghost imaging is anticipated.Results of this paper demonstrate that the developed beam splitter of Laue crystal has the potential in the efficient data acquisition of x-ray ghost imaging.

x-ray ghost imagingbeam splitting with Laue diffractionintensity correlationdynamical theory of x-ray diffraction

赵昌哲、司尚禹、张海鹏、薛莲、李中亮、肖体乔

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Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China

University of Chinese Academy of Sciences,Beijing 100049,China

Shanghai Synchrotron Radiation Facility,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201204,China

National Key Research and Development Program of ChinaNational Key Research and Development Program of ChinaNational Key Research and Development Program of ChinaNational Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaShanghai Pilot Program for Basic Research-Chinese Academy of Sciences,Shanghai Branch

2022YFF07091032022YFA16036012021YFF06012032021YFA160070381430087JCYJ-SHFY-2021-010

2024

10.1088/1674-1056/acf206

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(1)
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