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DOUBLY CURVED OPTICAL DEVICE WITH GRADED ATOMIC PLANES
DOUBLY CURVED OPTICAL DEVICE WITH GRADED ATOMIC PLANES
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机译:带有梯度原子平面的双弯曲光学器件
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摘要
An optically curved device is presented for use in focusing or imaging x-rays from a divergent source. The device includes a plurality of curved atomic reflection planes, at least some of which are separated by a spacing d which varies in at least one direction across the optically curved device. A doubly curved optical surface is disposed over the plurality of curved reflection planes. The spacing d varies continuously in the at least one direction for enhanced matching of incident angles of x-rays from a divergent source impinging on the optical surface with the Bragg angles on at least some points of the optical surface. The doubly curved optical surface can have an elliptic, parabolic, spheric or aspheric profile.
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