Achromatic x-ray lenses based on low-Z hydride compounds

Christoph Braig

doi:10.1117/12.2656813

7 June 2023 Achromatic x-ray lenses based on low-Z hydride compounds

Christoph Braig

Proceedings Volume 12576, EUV and X-ray Optics: Synergy between Laboratory and Space VIII; 125760G (2023) https://doi.org/10.1117/12.2656813
Event: SPIE Optics + Optoelectronics, 2023, Prague, Czech Republic

Abstract

Potential and applicability of composite low-Z materials, such as the solid-state hydrides LiH, BeH₂ and B₁₀H₁₄, are studied for their use in diffractive-refractive, space-based X-ray lenses for astronomy. Regardless technical challenges like their strong chemical reactivity, a low mass density, and the demand for a high elemental purity, the optical properties of the hydrides allow the design and construction of diffraction-limited focusing optics with an efficiency up to ≈ 1m² × keV in the range (6 − 18) keV. If scaled to an aperture size of . 4.9m, an angular resolution . 1×10−3 arcsec is achieved. Three-fold lens stacking reduces the outer aspect ratio of the refractive component to 2.5 or less, at an – if combined with segmentation – focal length of no more than ≈ 5 × 10² km.

Conference Presentation

Citation Download Citation

Christoph Braig "Achromatic x-ray lenses based on low-Z hydride compounds", Proc. SPIE 12576, EUV and X-ray Optics: Synergy between Laboratory and Space VIII, 125760G (7 June 2023); https://doi.org/10.1117/12.2656813

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