Multiple-size support for X-ray window
First Claim
Patent Images
1. A window for allowing transmission of x-rays, comprising:
- a) a support frame defining a perimeter and an aperture;
b) a plurality of ribs extending across the aperture of the support frame and carried by the support frame;
c) openings between the plurality of ribs;
d) a film disposed over, carried by, and spanning the plurality of ribs and openings and configured to pass radiation therethrough;
e) the plurality of ribs having at least two different cross-sectional sizes including at least one larger sized rib and at least one smaller sized rib;
f) the at least one larger sized rib has a widthwise cross-sectional area across the aperture of the support frame that is at least 5% larger than a widthwise cross-sectional area of the at least one smaller sized rib; and
g) the window being hermetically sealed to an enclosure configured to enclose an x-ray source or detection device in order to separate air from a vacuum within the enclosure.
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Abstract
An x-ray window including a support frame with a perimeter and an aperture. A plurality of ribs can extend across the aperture of the support frame and can be supported or carried by the support frame. Openings exist between ribs to allow transmission of x-rays through such openings with no attenuation of x-rays by the ribs. A film can be disposed over and span the ribs and openings. The ribs can have at least two different cross-sectional sizes including at least one larger sized rib with a cross-sectional area that is at least 5% larger than a cross-sectional area of at least one smaller sized rib.
246 Citations
26 Claims
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1. A window for allowing transmission of x-rays, comprising:
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a) a support frame defining a perimeter and an aperture; b) a plurality of ribs extending across the aperture of the support frame and carried by the support frame; c) openings between the plurality of ribs; d) a film disposed over, carried by, and spanning the plurality of ribs and openings and configured to pass radiation therethrough; e) the plurality of ribs having at least two different cross-sectional sizes including at least one larger sized rib and at least one smaller sized rib; f) the at least one larger sized rib has a widthwise cross-sectional area across the aperture of the support frame that is at least 5% larger than a widthwise cross-sectional area of the at least one smaller sized rib; and g) the window being hermetically sealed to an enclosure configured to enclose an x-ray source or detection device in order to separate air from a vacuum within the enclosure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A window for allowing transmission of x-rays, comprising:
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a) a support frame defining a perimeter and an aperture; b) a plurality of ribs extending across the aperture of the support frame and carried by the support frame, the plurality of ribs having openings therebetween; c) the plurality of ribs having tops that terminate substantially in a common plane; d) a film disposed over and spanning the plurality of ribs and openings and configured to pass radiation therethrough; e) the plurality of ribs having at least two different cross-sectional sizes including at least one larger sized rib and at least one smaller sized rib; f) the at least one larger sized rib has a widthwise cross-sectional area across the aperture of the support frame that is at least 50% larger than a widthwise cross-sectional area across the aperture of the support frame of the at least one smaller sized rib; g) the at least one larger sized rib has a longer length than all of the smaller sized ribs; h) the at least one larger sized rib spans a greater distance across an aperture of the support frame than at least one of the smaller sized ribs; and i) the window being hermetically sealed to an enclosure configured to enclose an x-ray source or detection device in order to separate air from a vacuum within the enclosure.
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26. A window for allowing transmission of x-rays, the window comprising:
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a) a support frame defining a perimeter and an aperture; b) a plurality of ribs extending across the aperture of the support frame and carried by the support frame, the plurality of ribs having openings therebetween; c) the plurality of ribs terminate substantially in a common plane; d) a film disposed over and spanning the plurality of ribs and openings and configured to pass radiation therethrough; e) the plurality of ribs having at least two different cross-sectional sizes including at least one larger sized rib and at least one smaller sized rib; f) the at least one larger sized rib has a widthwise cross-sectional area that is at least 5% larger than a widthwise cross-sectional area of the at least one smaller sized rib, a larger widthwise cross-section of the at least one larger sized rib extending across the aperture of the support frame and along an entire length of the at least one larger sized rib, a smaller widthwise cross-section of the smaller sized rib being smaller along at least a majority of a length of the at least one smaller sized rib across the aperture of the support frame; and g) the window being hermetically sealed to a mount, the mount being further hermetically sealed to either an x-ray source or a detector in order to form a hermetically sealed enclosure.
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Specification