US4698833A
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US
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Subassembly, method and system for monochromatizing X-rays
Assignee: Ovonic Synthetic Materials Co Inc
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Filing: 1985-05-14
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Granted: 1987-10-06
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Expires: 2005-05-14
Abstract
Abstract An improved X-ray monochromatizing subassembly, method and system are provided by a plurality of X-ray dispersive structures which are spaced and aligned to intercept X-rays and reflect monochromatized X-rays from the intercepted X-rays. The system includes a source of X-rays and an X-ray detector for detecting the monochromatized reflected X-rays. The monochromatized X-rays can be designed to be diverging, parallel or converging and can be designed for a particular wavelength of interest.
Inventors
- 👤 John E. Keem
- 👤 Gerald F. Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:04
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/06; G21K1/062; B; B82; B82Y; B82Y10/00; G21K2201/00; G21K2201/06; G21K2201/061
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
161 words
A parallel beam X-ray monochromatizer subassembly (34 of FIG. 4) comprising a plurality of individual X-ray dispersive structures (18), the individual X-ray dispersive structures (18) having at least one surface with a plurality of layer sets (22) formed thereon, the layer sets (22) on each of the X-ray dispersive structures (18) being different and having substantially different X-ray dispersive properties, the individual X-ray dispersive structures (18) being arrayed about a circle (28) with the optical center of each individual X-ray dispersive structure (18) being on the circumference of the circle (28) and adapted for use with an X-ray point source (14) so that the tangent plane of X-rays (16) from the point source (14) at the optical center of each individual X-ray dispersive structure (18) lies on the circle (28) at a center of rotation (30), such that each structure (18) intersects the X-rays (16) at substantially different angles (theta-1, theta-2, theta-3) so as to reflect parallel, reflected, monochromatized X-rays (16').
Claim 2
Dependent Claim
161 words
A parallel beam X-ray monochromatizer subassembly (34 of FIG. 4) comprising a plurality of individual X-ray dispersive structures (18), the individual X-ray dispersive structures (18) having at least one surface with a plurality of layer sets (22) formed thereon, the layer sets (22) on each of the X-ray dispersive structures (18) being different and having substantially different X-ray dispersive properties, the individual X-ray dispersive structures (18) being arrayed about a circle (28) with the optical center of each individual X-ray dispersive structure (18) being on the circumference of the circle (28) and adapted for use with an X-ray point source (14) so that the tangent plane of X-rays (16) from the point source (14) at the optical center of each individual X-ray dispersive structure (18) lies on the circle (28) at a center of rotation (30), such that each structure (18) intersects the X-rays (16) at substantially different angles (theta-1, theta-2, theta-3) so as to reflect parallel, reflected, monochromatized X-rays (16').
Claim 3
Dependent Claim
14 words
The subassembly as defined in claim 1 wherein said dispersive structures are substantially planar.
Claim 4
Dependent Claim
14 words
The subassembly as defined in claim 1 wherein said dispersive structures are substantially curved.
Claim 5
Dependent Claim
18 words
The subassembly as defined in claim 1 wherein said layer sets have a substantially equal fixed d spacing.
Claim 6
Dependent Claim
24 words
The subassembly as defined in claim 1 wherein said layer sets are formed to have a graded d spacing to increase the collected flux.
Claim 7
Dependent Claim
18 words
The subassembly as defined in claim 5 wherein said layers sets have a substantially equal fixed d spacing.
Claim 8
Dependent Claim
14 words
The subassembly as defined in claim 1 wherein said dispersive structures are substantially planar.
Claim 9
Dependent Claim
14 words
The subassembly as defined in claim 1 wherein said dispersive structures are substantially curved.
Claim 10
Dependent Claim
24 words
The subassembly as defined in claim 1 wherein said layer sets are different on each of said structures and have different X-ray dispersive properties.
Claim 11
Dependent Claim
18 words
The subassembly as defined in claim 1 wherein each of said structures intersect said X-rays at different angles.
Claim 12
Dependent Claim
28 words
The subassembly as defined in claim 1 wherein each of said dispersive structures include an X-ray absorbing portion to prevent X-rays from being transmitted directly through said structures.
Claim 13
Dependent Claim
18 words
The subassembly as defined in claim 1 wherein said layer sets have a substantially equal fixed d spacing.
Claim 14
Dependent Claim
24 words
The subassembly as defined in claim 1 wherein said layer sets are formed to have a graded d spacing to increase the collected flux.
Claim 15
Dependent Claim
18 words
The subassembly as defined in claim 13 wherein said layer sets have a substantially equal fixed d spacing.
Claim 16
Dependent Claim
155 words
A converging beam X-ray monochromatizer subassembly (36 of FIG. 5) comprising a plurality of individual X-ray dispersive structures (18) having at least one surface with a plurality of layer sets (22) formed thereon, the layer sets (22) on each of the X-ray dispersive structures (18) being different and having substantially different X-ray dispersive properties, the individual X-ray dispersive structures (18) being arrayed about a circle (28) with the optical center of each individual X-ray dispersive structure (18) being on the circumference of the circle (29) and adapted for use with an X-ray point source (14) so that the tangent plane of X-rays (16) from the point source (14) at the optical center of each individual X-ray dispersive structure (18) lies on the circle (28) at a center of rotation (30), such that each structure (18) intersects the X-rays (16) at substantially different angles (theta-1, theta-2, theta-3) so as to reflect converging, reflected, monochromatized X-rays (16').
Claim 17
Dependent Claim
155 words
A converging beam X-ray monochromatizer subassembly (36 of FIG. 5) comprising a plurality of individual X-ray dispersive structures (18) having at least one surface with a plurality of layer sets (22) formed thereon, the layer sets (22) on each of the X-ray dispersive structures (18) being different and having substantially different X-ray dispersive properties, the individual X-ray dispersive structures (18) being arrayed about a circle (28) with the optical center of each individual X-ray dispersive structure (18) being on the circumference of the circle (29) and adapted for use with an X-ray point source (14) so that the tangent plane of X-rays (16) from the point source (14) at the optical center of each individual X-ray dispersive structure (18) lies on the circle (28) at a center of rotation (30), such that each structure (18) intersects the X-rays (16) at substantially different angles (theta-1, theta-2, theta-3) so as to reflect converging, reflected, monochromatized X-rays (16').
Claim 18
Dependent Claim
14 words
The subassembly as defined in claim 15 wherein said dispersive structures are substantially planar.
Claim 19
Dependent Claim
14 words
The subassembly as defined in claim 15 wherein said dispersive structures are substantially curved.
Claim 20
Dependent Claim
26 words
The subassembly as defined in claim 15 wherein said dispersive structures include an X-ray absorbing portion to prevent X-rays from being transmitted directly through said structures.
Claim 21
Dependent Claim
17 words
The subassembly as defined in claim 15 wherein said layer sets have substantially equal fixed d spacing.
Claim 22
Dependent Claim
24 words
The subassembly as defined in claim 15 wherein said layer sets are formed to have a graded d spacing to increase the collected flux.
Claim 23
Dependent Claim
117 words
An improved method for monochromatizing X-rays, comprising: interesecting the X-rays with a monochromatic X-ray subassembly including a center of rotation and a plurality of X-ray dispersive structures, each of said structures having at least one surface with a plurality of layer sets formed thereon, each said layer set including at least two layers, said layer sets having X-ray dispersive properties, aligning said plurality of structures to reflect X-rays directly by the X-ray dispersive structure to a focus so as to monochromatize and reflect said intersected X-rays; rotating said X-ray subassembly about the center of rotation while intersecting the X-rays so as to make the average irradiance more uniform; and detecting said reflected, monochromatized X-rays at the focus.
Claim 24
Dependent Claim
117 words
An improved method for monochromatizing X-rays, comprising: interesecting the X-rays with a monochromatic X-ray subassembly including a center of rotation and a plurality of X-ray dispersive structures, each of said structures having at least one surface with a plurality of layer sets formed thereon, each said layer set including at least two layers, said layer sets having X-ray dispersive properties, aligning said plurality of structures to reflect X-rays directly by the X-ray dispersive structure to a focus so as to monochromatize and reflect said intersected X-rays; rotating said X-ray subassembly about the center of rotation while intersecting the X-rays so as to make the average irradiance more uniform; and detecting said reflected, monochromatized X-rays at the focus.
Claim 25
Dependent Claim
28 words
The method as defined in claim 21 including rotating said subassembly about a center of rotation while intersecting said X-rays to make the average irradiance distribution more uniform.
Claim 26
Dependent Claim
34 words
The method as defined in claim 21 including forming said structures with an optical center on a circle and rotating said subassembly about the center of the circle to enhance the detected image contrast.
Claim 27
Dependent Claim
160 words
A diverging beam X-ray monochromatizer subassembly (10) comprising a plurality of individual X-ray dispersive structures (18), the individual X-ray dispersive structures (18) having at least one surface with a plurality of layer sets (22) formed thereon, the layer sets (22) on each of the X-ray dispersive structures (18) being arrayed about a circle (28) with the optical center of each individual X-ray dispersive structure (18) being on the circumference of the circle (28) and adapted for use with an X-ray point source (14) so that the tangent plane of X-rays (16) from the point source (14) at the optical center of each individual X-ray dispersive structure (18) lies on the circle (28) at a center of rotation (30), such that each structure (18) intersects the X-rays (16) at substantially the same angle so as to reflect divergent, reflected, monochromatized X-rays (16') having a virtual source (34 of FIG. 3) different from the actual point source (14) on the circle (18).
Claim 28
Dependent Claim
160 words
A diverging beam X-ray monochromatizer subassembly (10) comprising a plurality of individual X-ray dispersive structures (18), the individual X-ray dispersive structures (18) having at least one surface with a plurality of layer sets (22) formed thereon, the layer sets (22) on each of the X-ray dispersive structures (18) being arrayed about a circle (28) with the optical center of each individual X-ray dispersive structure (18) being on the circumference of the circle (28) and adapted for use with an X-ray point source (14) so that the tangent plane of X-rays (16) from the point source (14) at the optical center of each individual X-ray dispersive structure (18) lies on the circle (28) at a center of rotation (30), such that each structure (18) intersects the X-rays (16) at substantially the same angle so as to reflect divergent, reflected, monochromatized X-rays (16') having a virtual source (34 of FIG. 3) different from the actual point source (14) on the circle (18).
Claim 29
Dependent Claim
115 words
An improved method for monochromatizing X-rays, comprising: interesecting the X-rays with a monochromatic X-ray subassembly formed with an optical center on a circle and including a plurality of X-ray dispersive structures, each of said structures having at least one surface with a plurality of layer sets formed thereon, each said layer set including at least two layers, said layer sets having X-ray dispersive properties, aligning said plurality of structures to reflect X-rays directly by the X-ray dispersive structure to a focus so as to monochromatize and reflect said intersected X-rays and rotating the subassembly about the center of the circle to enhance the detected image contrast; and detecting said reflected, monochromatized X-rays at the focus.
Claim 30
Dependent Claim
115 words
An improved method for monochromatizing X-rays, comprising: interesecting the X-rays with a monochromatic X-ray subassembly formed with an optical center on a circle and including a plurality of X-ray dispersive structures, each of said structures having at least one surface with a plurality of layer sets formed thereon, each said layer set including at least two layers, said layer sets having X-ray dispersive properties, aligning said plurality of structures to reflect X-rays directly by the X-ray dispersive structure to a focus so as to monochromatize and reflect said intersected X-rays and rotating the subassembly about the center of the circle to enhance the detected image contrast; and detecting said reflected, monochromatized X-rays at the focus.
Claim 31
Dependent Claim
105 words
An improved method for monochromatizing X-rays, comprising: interesecting the X-rays with a monochromatic X-ray subassembly including a plurality of X-ray dispersive structures, each of said structures having at least one surface with a plurality of layer sets formed thereon, each said layer set including at least two layers, said layer sets having X-ray dispersive properties, aligning said plurality of structures to reflect X-rays directly by the X-ray dispersive structure to a focus so as to monochromatize and reflect said intersected X-rays, and including an X-ray absorbing portion to prevent X-rays from being transmitted through said structures; and detecting said reflected, monochromatized X-rays at the focus.
Claim 32
Dependent Claim
105 words
An improved method for monochromatizing X-rays, comprising: interesecting the X-rays with a monochromatic X-ray subassembly including a plurality of X-ray dispersive structures, each of said structures having at least one surface with a plurality of layer sets formed thereon, each said layer set including at least two layers, said layer sets having X-ray dispersive properties, aligning said plurality of structures to reflect X-rays directly by the X-ray dispersive structure to a focus so as to monochromatize and reflect said intersected X-rays, and including an X-ray absorbing portion to prevent X-rays from being transmitted through said structures; and detecting said reflected, monochromatized X-rays at the focus.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-05 | 1991-04-06 | 1991-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-05 | 1995-04-06 | 1995-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-05 | 1999-04-06 | 1999-10-06 | $7700.00 | Window Closed / Lapsed |