Patent Number: 
Section: claims

1. A grating for X-ray imaging, comprising:a grating structure including a first plurality of bar members and a second plurality of gaps; anda fixation structure arranged between the bar members to stabilize the grating bar members;wherein the bar members are extending in a length direction and in a height direction and are spaced from each other by one of the gaps in a spacing direction transverse to the height direction and to the length direction, wherein the gaps are arranged in a gap direction parallel to the length direction;wherein the fixation structure comprises at least one bridging web member that is provided between adjacent bar members of the plurality of bar members;wherein one bridging web member of the at least one bridging web member is longitudinal that extends in the gap direction and that is provided in an inclined manner in relation to the height direction, wherein an inclination is provided in the gap direction; andwherein the one bridging web member of the at least one bridging web member includes an inclined portion, the inclined portion of the one bridging web member extends along an inclined direction with a constant dimension in the spacing direction and the inclined direction is perpendicular to the spacing direction and is different from the height direction and the length direction. 2. The grating according to claim 1, wherein the at least one bridging web member and the bar members are made from the same material; and wherein the at least one bridging web member and the bar members are made as a one-piece structure. 3. The grating according to claim 1, wherein the bar members and the at least one bridging web member are made from structure material, and an X-ray absorbing material is arranged in the gaps; and wherein the structural material is less X-ray absorbing than the X-ray absorption material. 4. The grating according to claim 3, wherein the grating is an absorber grating, and the grating structure is made such that the gaps are filled with the X-ray absorbing material for X-ray absorption by the gaps; and wherein the bar members are provided to be less X-ray absorbing for X-ray radiation transmission in the bar members. 5. The grating according to claim 1, wherein the grating is an absorber grating, and the grating structure is made such that the bar members are made from X-ray absorbing material for X-ray absorption by the bar members, and the gaps are provided to be less X-ray absorbing for X-ray radiation transmission in the gaps. 6. The grating according to claim 1, wherein one bridging web member of the at least one bridging web member is arranged between the adjacent bar members such that the one bridging web member of the at least one bridging web member connects opposing portions of the bar members; and/orwherein the at least one bridging web member includes a plurality of bridging web members, and in a non-assembled state the plurality of bridging web members are arranged parallel to each other. 7. The grating according to claim 1, wherein, in an X-ray radiation viewing direction, across the height at least one first gap part and at least one web segment part are provided. 8. The grating according to claim 1, wherein one bridging web member of the at least one bridging web member is arranged such that, in an X-ray radiation viewing direction, a continuous degree of X-ray attenuation is provided along the gaps. 9. The grating according to claim 1, wherein one bridging web member of the at least one bridging web member extends in a continuous manner from an upper edge of the bar members to a lower edge of the bar members; and/orwherein the at least one bridging web member includes a plurality of bridging web members the plurality of bridging web members are arranged repeatedly in gap direction with a distance D over a gap height H; and wherein the plurality of bridging web members have an inclination ratio in relation to the height direction R of D/H. 10. The grating according to claim 1, wherein the at least one bridging web member includes a plurality of bridging web members, and the plurality of bridging web members are arranged at least as one of the following:as repeatedly arranged inclined web members with the same inclination angle;as inclined segments with the same inclination angle value, but with alternating inclination directions, which results in a zig-zag web pattern along the gap; andas repeatedly arranged inclined web segment portions that are provided in a crossing manner, which results in an X-type repeated web pattern. 11. The grating according to claim 1, wherein the grating is at least one of:an absorber grating for phase contrast and/or dark-field X-ray imaging; andan anti-scatter grid for X-ray imaging. 12. An X-ray imaging system, comprising:an X-ray source, an X-ray detector; anda grating according to claim 1 to be arranged in an X-ray radiation path between the X-ray source and the X-ray detector. 13. The X-ray imaging system according to claim 12, wherein the X-ray source provides the X-ray radiation towards the X-ray detector in an X-ray viewing direction; and wherein one bridging web member of the at least one bridging web member is provided in an inclined manner in relation to the X-ray viewing direction. 14. The X-ray imaging system according to claim 12, wherein a grating arrangement for phase contrast and/or dark-field X-ray imaging is provided;wherein at least partially coherent X-ray radiation is provided to radiate an object;wherein the grating arrangement comprises at least a phase grating and an analyzer grating; andwherein the grating is provided as an absorption grating forming:the analyzer grating; and/ora source grating to provide the at least partially coherent X-ray radiation. 15. A method for manufacturing a grating for X-ray imaging, comprising:generating a grating structure including a first plurality of bar members and a second plurality of gaps, wherein the bar members are extending in a length direction and in a height direction and are spaced from each other by one of the gaps in a spacing direction transverse to the height direction and to the length direction; andgenerating a fixation structure arranged between the bar members to stabilize the grating bar members, wherein the fixation structure comprises at least one bridging web member that is provided between adjacent bar members of the plurality of bar members, and wherein one bridging web member of the at least one bridging web member is longitudinal that extends in the direction of the gaps and that is provided in an inclined manner in relation to the height direction,wherein the one bridging web member of the at least one bridging web member includes an inclined portion, the inclined portion of the one bridging web member extends along an inclined direction with a constant dimension in the spacing direction, and the inclined direction is perpendicular to the spacing direction and is different from the height direction and the length direction.