Monochromatic hard X-ray backlighting based on transmission logarithmic spiral crystals (Conference Presentation)

Dongbing Liu; Qingguo Yang; Bozhong Tan; Shali Xiao

doi:10.1117/12.2320631

18 September 2018 Monochromatic hard X-ray backlighting based on transmission logarithmic spiral crystals (Conference Presentation)

Dongbing Liu, Qingguo Yang, Bozhong Tan, Shali Xiao

Author Affiliations +

Proceedings Volume 10760, Advances in X-Ray/EUV Optics and Components XIII; 107600I (2018) https://doi.org/10.1117/12.2320631
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

Monochromatic x-ray backlighting is an essential and basic diagnostic in the research area, such as laser or z-pinch driven inertial confinement fusion, high energy density physics and laboratory astrophysics. A monochromatic hard X-ray backlighting system based on transmission logarithmic spiral crystals has been imposed, where the crystal is employed as a monochromator as well as an optical path deflector by taking advantage of the defining characteristic that all X-ray radiated from the pole of the spiral meet the crystal surface at the same angle. According to the model of Laue logarithmic spiral crystal imaging system and ray tracing method, the imaging principle and characteristics are analyzed theoretically, particularly the distance that the monochromatic beam split from the transmitted beam. We have designed and fabricated a logarithmic spiral quartz 2023 (2d=0.2749nm) crystal. Accordingly, the X-ray imaging system has been setup at 17.479 KeV (Mo Kα line), where the monochromatic image and the polychromatic image can be obtained at the same time. The test data and experimental results are presented and discussed. Compared with the most broadly applied monochromatic x-ray backlighting based on the spherically bent crystal, new developed imaging system can achieve higher photo energy and broader field of view.

Conference Presentation

Citation Download Citation

Dongbing Liu, Qingguo Yang, Bozhong Tan, and Shali Xiao "Monochromatic hard X-ray backlighting based on transmission logarithmic spiral crystals (Conference Presentation)", Proc. SPIE 10760, Advances in X-Ray/EUV Optics and Components XIII, 107600I (18 September 2018); https://doi.org/10.1117/12.2320631

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KEYWORDS

Crystals

Hard x-rays

Imaging systems

X-rays

Beam splitters

Fusion energy

X-ray imaging

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