An image focusing means by using an opaque object to diffract x-

Details An image focusing means by using an opaque object to diffract x- An image focusing means by using an opaque object to diffract x-

1990-04-30

1991-06-04

Westin, Edward P.

X-ray or gamma ray systems or devices

Specific application

Diffraction, reflection, or scattering analysis

378 43, G21K 106, G21K 700

Patent

active

050220616

ABSTRACT:
The invention provides a method and apparatus for focusing and imaging x-rays. An opaque sphere is used as a diffractive imaging element to diffract x-rays from an object so that the divergent x-ray wavefronts are transformed into convergent wavefronts and are brought to focus to form an image of the object with a large depth of field.

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patent: 4692938 (1987-09-01), Oba
patent: 4870674 (1989-09-01), Schmahl et al.
patent: 4887282 (1989-12-01), Mueller
patent: 4891830 (1990-01-01), Iwahashi

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