4X Higher Flux:
Paraboloidal X-ray Mirror Lens over KB Mirrors

kb mirror vs paraboloidal mirror lens.jpg

The x-ray flux at a focus is proportional to B (source brightness) and the square of the NA (numerical aperture) of the x-ray optic by the following relationship:

Focused x-ray flux:   F ~ B * NA^2

The axial symmetry of the paraboloidal x-ray mirror lens (as shown in the image) provides over 2X higher numerical aperture and >4X higher flux at the focal spot. This translates into more efficient use of limited beamtime, and additionally provides benefits for dynamic studies.

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