Patent Number: 
Section: claims

1. A detector assembly comprising:a collimator assembly comprising:a first collimator segment having a first left end and a first right end, said first collimator segment comprising:a plurality of x-ray blocking first segment longitudinal walls having a first segment depth, each of said plurality of first segment longitudinal walls including a first interlocking protrusion comprising less than an entire portion of said first segment depth, said plurality of first segment longitudinal walls configured to be planar to projected x-rays;a second collimator segment having a second left end and a second right end, said second collimator segment comprising:a plurality of x-ray blocking second segment longitudinal walls having a second segment depth, each of said plurality of second segment longitudinal walls including a second interlocking protrusion comprising less than an entire portion of said second segment depth, each of said second interlocking protrusions engaging one of said first interlocking protrusions to form a continuous sidewall segment; anda plurality of first latitudinal segments positioned between each of said plurality of first longitudinal walls such that a plurality of first collimator chambers is formed, each of said first collimator chambers having a first collimator width. 2. A detector assembly as described in claim 1, wherein said first interlocking protrusion comprises a block shaped protrusion. 3. A detector assembly as described in claim 1, wherein said first interlocking protrusion comprises a triangular shaped protrusion. 4. A detector assembly as described in claim 1, wherein said plurality of first segment longitudinal walls comprise cast tungsten. 5. A detector assembly as described in claim 1, wherein said plurality of first segment longitudinal walls comprise cast lead. 6. A detector assembly as described in claim 1, wherein each of said first interlocking protrusions comprises a first protrusion width, said first protrusion width less than or equal to said first collimator width. 7. A detector assembly as described in claim 1, wherein:said first collimator segment comprises a first collimator height;said first interlocking protrusion comprising a first protrusion height;said second interlocking protrusion comprising a second protrusion height; andsaid first protrusion height added to said second protrusion height equaling said first collimator height. 8. A detector assembly as described in claim 1, further comprising:a scintillator assembly in communication with said collimator assembly, said scintillator assembly having a scintillator longitudinal width, said scintillator longitudinal width smaller than a collimator assembly longitudinal width. 9. A detector assembly as described in claim 1, wherein said first collimator segment further comprises:a plurality of opposing interlocking protrusions each of which is formed on one of said a plurality of first segment longitudinal walls, each of said plurality of opposing interlocking protrusions positioned opposite one of said first interlocking protrusions, said opposing interlocking protrusion comprising only a portion of said first segment depth. 10. A detector assembly as described in claim 9, wherein each of said opposing interlocking protrusions creates a mirror negative to one of said first interlocking protrusions. 11. A detector assembly as described in claim 1, wherein said plurality of first collimator chambers forms a rectangular array. 12. A collimator assembly segment for mating to a second collimator segment comprising a plurality of second segment longitudinal walls having a second segment depth, each of the plurality of second segment longitudinal walls having a second interlocking protrusion having a second protrusion height comprising less than an entire portion of the second segment depth, comprising:a first collimator segment having a first left end and a first right end, said first collimator segment comprising:a plurality of x-ray blocking first segment longitudinal walls having a first segment depth, each of said plurality of first segment longitudinal walls including a first interlocking protrusion comprising less than an entire portion of said first segment depth, each of said first interlocking protrusions shaped to engage one of the second interlocking protrusions to form a continuous sidewall segment, said plurality of first segment longitudinal walls configured to be planar to projected x-rays; anda plurality of first latitudinal segments positioned between each of said plurality of first longitudinal walls such that a plurality of first collimator chambers is formed, each of said first collimator chambers having a first collimator width. 13. A collimator assembly segment as described in claim 12, further comprising:a plurality of first latitudinal segments positioned between each of said plurality of first longitudinal walls such that a plurality of first collimator chambers is formed, each of said first collimator chambers having a first collimator width. 14. A detector assembly as described in claim 13, wherein each of said first interlocking protrusions comprises a first protrusion width, said first protrusion width less than or equal to said first collimator width. 15. A detector assembly as described in claim 12, wherein:said first collimator segment comprises a first collimator height;said first interlocking protrusion comprising a first protrusion height;said first protrusion height added to the second protrusion height equaling said first collimator height. 16. A detector assembly as described in claim 12, wherein said first collimator segment further comprises:a plurality of opposing interlocking protrusions each of which is formed on one of said a plurality of first segment longitudinal walls, each of said plurality of opposing interlocking protrusions positioned opposite one of said first interlocking protrusions, said opposing interlocking protrusion comprising only a portion of said first segment depth. 17. A detector assembly as described in claim 16, wherein each of said opposing interlocking protrusions creates a mirror negative to one of said first interlocking protrusions. 18. A method of manufacturing a detector assembly with extended longitudinal depth comprising:casting a first collimator segment comprising a plurality of first segment longitudinal walls having a first segment depth, each of said plurality of first segment longitudinal walls including a first interlocking protrusion comprising less than an entire portion of said first segment depth;casting a second collimator segment comprising a plurality of second segment longitudinal walls having a second segment depth, each of said plurality of second segment longitudinal walls including a second interlocking protrusion comprising less than an entire portion of said second segment depth;engaging each of said second interlocking protrusions with one of said first interlocking protrusions to form a plurality of continuous sidewall segments. 19. A method of manufacturing a detector assembly, as described in claim 18 further comprising:casting a plurality of first latitudinal segments between each of said plurality of first longitudinal walls such that a plurality of first collimator chambers is formed, each of said first collimator chambers having a first collimator width; andcasting said first interlocking protrusions and said second interlocking protrusions such that said first interlocking protrusions and said second interlocking protrusions combine to match said first segment.