X-ray collimators, and related systems and methods involving such collimators

1. An X-ray collimator, comprising:

a first collimator section including a plurality of passages, each passage extending between first and second surfaces;

a second collimator section including a longitudinal passage extending between first and second surfaces; and

a plurality of collimator apertures, wherein each collimator aperture is respectively defined in a first direction between the first and the second surfaces of a respective one of the passages in the first collimator section, and wherein each collimator aperture is respectively defined in a second direction between the first and the second surfaces of the passage in the second collimator section.

2. The collimator of claim 1 , further comprising a first member and a second member, which first member includes a first portion of the first and the second collimator sections, and which second member include a second portion of the first and the second collimator sections.

3. The collimator of claim 2 , wherein:

the first member further includes a plurality of channels disposed in the first collimator section thereof, and the first surface of the longitudinal passage, wherein each channel includes the first surface of a respective one of the passages; and

the second member further includes a plurality of protrusions disposed in the first collimator section thereof, and the second surface of the longitudinal passage, which protrusions respectively extend into the channels in the first member, wherein each protrusion includes the second surface of a respective one of the passages.

4. The collimator of claim 1 , further comprising a third collimator section that includes a plurality of passages, each passage extending between first and second surfaces, wherein each collimator aperture is further defined in the first direction between the first and the second surfaces of a respective one of the passages in the third collimator section, and wherein the second collimator section is disposed between the first and the third collimator sections.

5. The collimator of claim 4 , further comprising a first member and a second member, which first member includes a first portion of the first, the second and the third collimator sections, and which second member includes a second portion of the first, the second and the third collimator sections.

6. The collimator of claim 5 , wherein:

the first member further includes a plurality of channels disposed in the first collimator section thereof, a plurality of channels disposed in the third collimator section thereof, and the first surface of the longitudinal passage, wherein each channel in the first collimator section includes the first surface of a respective one of the passages in the first collimator section, and wherein each channel in the third collimator section includes the first surface of a respective one of the passages in the third collimator section; and

the second member further includes a plurality of protrusions disposed in the first collimator section thereof, a plurality of protrusions disposed in the third collimator section thereof, and the second surface of the longitudinal passage, wherein each protrusion in the first collimator section includes the second surface of a respective one of the passages in the first collimator section, wherein each protrusion in the third collimator section includes the second surface of a respective one of the passages in the third collimator section, and wherein the protrusions respectively extend into the channels in the first member.

7. The collimator of claim 6 , wherein:

the first member further includes a longitudinal channel disposed in the second collimator section thereof, which longitudinal channel has sidewalls extending outwardly from the first surface of the longitudinal passage in the second collimator section of the first member; and

the second member further includes a longitudinal channel disposed in the second collimator section thereof, which longitudinal channel has sidewalls extending outwardly from the second surface of the longitudinal passage of the second collimator section of the second member.

8. The collimator of claim 1 , wherein each of the first passages is radially aligned with a center located outside a periphery of the collimator.

9. An X-ray collimator, comprising:

a first member including first and second collimator sections, which first collimator section includes a plurality of channels, each channel having a first channel sidewall, and which second collimator section includes a surface;

a second member mated with the first member, and including first and second collimator sections, which first collimator section includes a plurality of protrusions respectively extending into the channels, each protrusion having a first protrusion sidewall, and which second collimator section includes a surface; and

a plurality of collimator apertures, each collimator aperture respectively defined in a first direction between one of the first channel sidewalls and one of the first protrusion sidewalls, and each collimator aperture defined in a second direction between the second collimator section surfaces of the first and the second members.

10. The collimator of claim 9 , wherein:

the first member further includes a third collimator section that includes a plurality of channels, each channel having a first channel sidewall, wherein the second collimator section is disposed between the first and the third collimator sections; and

the second member further includes a third collimator section that includes a plurality of protrusions, each protrusion respectively extending into the channels in the third collimator section of the first member, each protrusion having a first protrusion sidewall, wherein the second collimator section is disposed between the first and the third collimator sections.

11. The collimator of claim 9 , wherein each of the channels and each of the protrusions is radially aligned with a center located outside respective peripheries of the first member and the second member.

12. An X-ray system, comprising:

an X-ray source; and

an X-ray collimator comprising:

a first collimator section including a plurality of passages, each passage extending between first and second surfaces;

a second collimator section including a longitudinal passage extending between first and second surfaces; and

a plurality of collimator apertures, wherein each collimator aperture is respectively defined in a first direction between the first and the second surfaces of a respective one of the passages in the first collimator section, and wherein each collimator aperture is respectively defined in a second direction between the first and the second surfaces of the passage in the second collimator section.

13. The system of claim 12 , further comprising a first member and a second member, which first member includes a first portion of the first and the second collimator sections, and which second member includes a second portion of the first and the second collimator sections.

14. The system of claim 13 , wherein:

the first member further includes a plurality of channels disposed in the first collimator section thereof, and the first surface of the longitudinal passage, wherein each channel includes the first surface of a respective one of the passages; and

the second member further includes a plurality of protrusions disposed in the first collimator section thereof, and the second surface of the longitudinal passage, which protrusions respectively extend into the channels in the first member, wherein each protrusion includes the second surface of a respective one of the passages.