Two-dimensional small angle x-ray scattering camera
AssigneeRigaku Innovative Technologies, Inc.
InventorLicai Jiang
Life of this patent
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Abstract
A two-dimensional x-ray scattering camera includes a source, an optic, a detector, and a pair of collimating blocks. The source emits x-ray beams that are reflected by the optic towards a sample. The detector detects scattering from the sample, the pair of collimating blocks is positioned between the optic and the detector to collimate the beam. A bottom surface of one block is substantially parallel a top surface of the other block, and the blocks are rotatable relative to the beam about a pivot. The system forms a two-dimensional beam that is symmetric about the primary beam axis at the detector position, regardless how the beam is collimated by the collimating blocks. The system therefore eliminates smearing and can be used for anisotropic small angle scattering at high resolution and low Qmin.
Claims26
A two-dimensional x-ray scattering camera for analyzing a sample comprising:
- a source which emits x-rays;
- a two-dimensional optic which conditions the x-rays to form a two-dimensional beam and directs the two-dimensional beam to interact with the sample;
- a detector which detects x-ray radiation that is scattered by the sample;
- and
- a pair of collimating blocks positioned between the optic and the sample to collimate the two-dimensional beam, a first surface of a first block of the pair of collimating blocks being aligned with a second block of the pair of collimating blocks to form a parasitic-scattering-free zone.
A method of analyzing a sample with a two-dimensional x-ray beam comprising:
- emitting x-rays from a source;
- reflecting the x-rays to form a beam and directing the beam to the sample using an optic that conditions the beam in two-dimensions;
- collimating the beam with a pair of collimating blocks positioned between the source and the detector, a first surface of a first block of the pair of collimating blocks being aligned with a second block of the pair of collimating blocks to form a parasitic-scattering-free zone;
- and
- detecting x-ray radiation scattered by from the sample with a detector.
Dependencies are inferred from the claim text.