中国物理B ›› 2024, Vol. 33 ›› Issue (1): 14102-14102.doi: 10.1088/1674-1056/acf206
Chang-Zhe Zhao(赵昌哲)1,2,3, Shang-Yu Si(司尚禹)1,2,3, Hai-Peng Zhang(张海鹏)3, Lian Xue(薛莲)3, Zhong-Liang Li(李中亮)1,2,3,†, and Ti-Qiao Xiao(肖体乔)1,2,3,‡
Chang-Zhe Zhao(赵昌哲)1,2,3, Shang-Yu Si(司尚禹)1,2,3, Hai-Peng Zhang(张海鹏)3, Lian Xue(薛莲)3, Zhong-Liang Li(李中亮)1,2,3,†, and Ti-Qiao Xiao(肖体乔)1,2,3,‡
摘要: 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.
中图分类号: (X-ray beams and x-ray optics)