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9 September 2019 Focusing and energy dispersion properties of a cylindrically bent asymmetric Laue crystal
Peng Qi, Xianbo Shi, Nazanin Samadi, Dean Chapman
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Abstract
Elastically bent single crystal Laue case diffraction crystals provide interesting new opportunities for imaging and spectroscopy applications. The diffraction properties are well understood, however, the ability to easily model the diffracted beams hinders assessment of the focal, phase and energy dispersive properties needed for many applications. This work begins to collect the elements needed to ray trace diffracted beams within bent Laue crystals for the purpose of incorporation into other powerful ray tracing applications such as SHADOW. Specifically, we address the condition in a bent Laue crystal where a cylindrically bent Laue crystal will focus all the polychromatic diffracted beams at a single location when a specific asymmetry angle condition is met for a target x-ray energy – the so-called ‘magic condition’. The focal size of the beam can be minimized, but this condition also results in excellent energy dispersive properties. The conceptual and mathematical aspects of this interesting focusing and energy dispersive phenomenon is discussed.
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© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Peng Qi, Xianbo Shi, Nazanin Samadi, and Dean Chapman "Focusing and energy dispersion properties of a cylindrically bent asymmetric Laue crystal", Proc. SPIE 11108, Advances in X-Ray/EUV Optics and Components XIV, 111080E (9 September 2019); https://doi.org/10.1117/12.2525449
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Cited by 1 scholarly publication.
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