31 May 2017 Diffraction losses in monocrystalline x-ray refractive lenses
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In the present paper we describe X-ray glitches and diffraction losses in monocrystalline diamond X-ray refractive lenses. For this purpose, X-ray spectroscopy of several types of diamond lenses was done at the BM31, ESRF. X-rays were propagating through lenses, while the transmitted intensity was measured at different energies. Use of compound refractive lenses, that were perfectly aligned by stacking in a single plate, gave us strong diffraction losses, reducing the outgoing signal by maximal value of 35%. The magnitude of the effect was then minimized down to ~ 10% by use of CRLs compiled from individual lenses with different crystallographic orientation. At the same time, X-ray glitches did not affect any focal spot’s size or shape while only arousing the darkening of the focal spot at exact energies of X-ray glitches.
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M. Polikarpov, M. Polikarpov, H. Emerich, H. Emerich, N. Klimova, N. Klimova, I. Snigireva, I. Snigireva, A. Snigirev, A. Snigirev, } "Diffraction losses in monocrystalline x-ray refractive lenses", Proc. SPIE 10235, EUV and X-ray Optics: Synergy between Laboratory and Space V, 102350H (31 May 2017); doi: 10.1117/12.2266832; https://doi.org/10.1117/12.2266832


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