High-Transmission Planar X-Ray Waveguides

Journal Article · Fri May 09 00:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.184801· OSTI ID:21128127

Salditt, T; Krueger, S P; Fuhse, C ^[1]; Baehtz, C ^[2]

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1. Institut fuer Roentgenphysik, Universitaet Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen (Germany)
2. ROBL Beam Line at ESRF, B.P. 220, 38043 Grenoble (France)

We have studied the propagation of hard x rays in a planar x-ray waveguide with a sub-20 nm guiding layer. To optimize the transmission and to minimize absorption losses, a novel waveguide design based on a two-component cladding was implemented. Optimized transmission is achieved by placing an appropriate interlayer between the cladding and the guiding core. The experimental results along with simulations of field propagation show that high transmission values can be obtained in waveguide optics at parameters relevant for x-ray imaging. These are small beam diameters below 20 nm and the relatively long guiding length necessary for efficient blocking of multi-keV photon energy beams.

• OSTI ID: 21128127
• Journal Information: Physical Review Letters, Vol. 100, Issue 18; Other Information: DOI: 10.1103/PhysRevLett.100.184801; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
CHANNELING
CLADDING
HARD X RADIATION
KEV RANGE
PHOTONS
SIMULATION
WAVEGUIDES