Details

Autor(en) / Beteiligte

• Zhao, Chang-Zhe
• Si, Shang-Yu
• Zhang, Hai-Peng
• Xue, Lian
• Li, Zhong-Liang
• Xiao, Ti-Qiao

Titel

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

Ist Teil von

• Chinese physics B, 2024-01, Vol.33 (1), p.14102-421

Ort / Verlag

Chinese Physical Society and IOP Publishing Ltd

Erscheinungsjahr

2024

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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.