X-ray monochromatic and focusing system

Claim 2

An X-ray monochromatic and focusing system comprising: a source of X-ray radiation, a tubular support for the acceptance and passage of said radiation, diffractive pieces of bent crystal arcuately enclosed within the inner periphery of the tubular support to obtain a high relative aperture of X-rays focused into emergent diffracted X-ray beams onto a desired area, means interposed within the inner periphery of the crystal lined support to intercept the undiffracted X-ray beam and to shield the entire desired area from the undiffracted radiation and define the spectral range of the X-rays emergent from the crystal, and means for performing X-ray spectral analysis.

Claim 3

An X-ray monochromatic and focusing system as claimed in claim 1, wherein said diffractive pieces of crystal arcuately line portions of said inner periphery of the tubular support.

Claim 4

An X-ray monochromatic and focusing system as claimed in claim 1, wherein the emergent X-ray beam is focused onto a specimen.

Claim 5

An X-ray monochromatic and focusing system as claimed in claim 1, wherein the emergent X-ray beam is focused onto a detector. 5. An X-ray monochromator as claimed in claim 1 comprising a tubular support for the acceptance and passage of X-ray radiation, wherein said tubular support is internally stepped, the means intercepting the undiffracted X-ray beam being an externally stepped beam stop suspended within said support and extending longitudinally thereof, diffractive pieces of bent crystal arcuately enclosed within the inner periphery of the tubular support and in axially inwardly spaced relation about the beam stop to diffract incident X-ray beams and to focus the diffracted X-ray beams onto a desired area.

Claim 6

An X-ray monochromator as claimed in claim 5, wherein the steps of the inner periphery of said support are of different depth, length and spacing.

Claim 7

An X-ray monochromator as claimed in claim 5, wherein the diffractive crystal is frusto-conical.

Claim 8

An X-ray monochromator as claimed in claim 5, wherein the diffractive crystal is bent about an axis perpendicular to the longitudinal axis of the housing and arranged in the form of a toroid about the axis thereof.

Claim 9

An X-ray monochromator as claimed in claim 1 having means whereby a 2:1 adjustment of a detector with respect to the specimen is attainable.

Claim 10

An X-ray monochromator as claimed in claim 1 in which the housing, crystal and beam stop combination is segmented, the segments differing for attaining different spectral regions, the segments comprising a toroid having as many steps as segments.

Claim 11

An X-ray monochromator as claimed in claim 1 comprising a plurality of toroidal crystals arranged co-axially sharing a common axially internally positioned disc type beam stop for intercepting the undiffracted X-ray beam.

Claim 12

Apparatus for producing an X-ray monochromatic and focusing system comprising a tubular support for the acceptance and passage of X-ray radiation, diffractive pieces of bent crystal arcuately enclosed within the inner periphery of the tubular support to obtain a high relative aperture of X-rays focused into emergent diffracted X-ray beams onto a desired area, means interposed within the inner periphery of the crystal lined support to intercept the undiffracted X-ray beam and to shield the entire desired area from the undiffracted radiation and define the spectral range of the X-rays emergent from the crystal, and means for performing X-ray spectral analysis.

Claim 13

Apparatus for producing an X-ray monochromatic and focusing system comprising a tubular support for the acceptance and passage of X-ray radiation, diffractive pieces of bent crystal arcuately enclosed within the inner periphery of the tubular support to obtain a high relative aperture of X-rays focused into emergent diffracted X-ray beams onto a desired area, means interposed within the inner periphery of the crystal lined support to intercept the undiffracted X-ray beam and to shield the entire desired area from the undiffracted radiation and define the spectral range of the X-rays emergent from the crystal, and means for performing X-ray spectral analysis.

Claim 14

An X-ray monochromator comprising a tubular frame, an adapter adjustably rotatable with respect to said frame and internally mounted thereon, said adapter being externally mounted on a tubular housing, said housing being lined with diffracted monochromator bent crystal, a disc type beam stop suspended within said housing and axially spaced internally of the crystal, rotation of the adapter restraining the frame and tubular housing from rotation, and permitting interception and alignment of the crystal with a detector positioned on the axis of the adapter to intercept at desired points diffracted beams for any desired spectral range.

Claim 15

An X-ray monochromator comprising a tubular frame, an adapter adjustably rotatable with respect to said frame and internally mounted thereon, said adapter being externally mounted on a tubular housing, said housing being lined with diffracted monochromator bent crystal, a disc type beam stop suspended within said housing and axially spaced internally of the crystal, rotation of the adapter restraining the frame and tubular housing from rotation, and permitting interception and alignment of the crystal with a detector positioned on the axis of the adapter to intercept at desired points diffracted beams for any desired spectral range.