Sharp-focusing Bragg-Fresnel zone plate with Laue diffraction geometry.
The impact of decreased zone height on the focal properties of hard X-ray Bragg-Fresnel zone plates has been studied by numerical simulation. Decreased zone height allows for smaller zone widths and, although the efficiency of the lens is decreased, the signal-to-background ratio in the focal plane of the lens remains at a comparatively high level. This is distinct from an analogous case of ordinary phase zone plates.
Haroutunyan
Levon
L
Yerevan State University, Alex Manoogian St. 1, Yerevan 375025, Armenia. levhar@web.am
Hovhannisyan
Gayane
G
D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007909:Lenses; D008962:Models, Theoretical; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods*; D012542:Scattering, Radiation; D014961:X-Ray Diffraction / Q000295:instrumentation* / Q000379:methods*