IP Library Granted Patent US 7,881,437
Granted Patent B2
US 7,881,437 · App. 11/484,186 · Granted Feb 1, 2011

Systems and methods for developing a primary collimator

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Quick Facts
Patent No.
US 7,881,437
App. No.
11/484,186
Granted
Feb 1, 2011
Kind
B2
Abstract

A method for developing a primary collimator is described. The method includes placing a primary collimator element at an intersection of a first set of at least two beams.

Claims (36)

1. A method for developing a primary collimator, said method comprising:

generating a plurality of virtual X-ray sources;

generating a plurality of virtual X-ray detectors;

generating a plurality of virtual X-ray beams, a first predetermined number of the plurality of virtual X-ray beams extending from each of the virtual X-ray sources to a respective virtual X-ray detector of the plurality of virtual X-ray detectors;

determining a plurality of intersection points at which a second predetermined number of the plurality of virtual X-ray beams intersect;

generating a virtual primary collimator element corresponding to the plurality of intersection points; and

outputting the generated virtual primary collimator element to facilitate forming a real primary collimator element based on the virtual primary collimator element.

2. A method in accordance with claim 1 , further comprising forming a real primary collimator element based on the virtual primary collimator element.

3. A method in accordance with claim 2 further comprising locating an aperture of the real primary collimator element at each intersection point of the plurality of intersection points.

4. A method in accordance with claim 3 further comprising avoiding a creation of the aperture at a point other than a point corresponding to one of the plurality of intersection points.

5. A method in accordance with claim 2 further comprising sliding the real primary collimator element along a plurality of slots of a plurality of holders affixed to a gantry.

6. A method in accordance with claim 2 further comprising affixing the real primary collimator element to a plurality of holders.

7. A method in accordance with claim 6 further comprising sliding the real primary collimator element between the plurality of holders.

8. A method in accordance with claim 2 , wherein the real primary collimator element is proportional to the virtual primary collimator element by a scale factor.

9. A method in accordance with claim 1 further comprising avoiding placement of the virtual primary collimator element at an axis parallel to an axis that extends along the plurality of intersection points.

10. A method in accordance with claim 1 , wherein the first predetermined number of virtual X-ray beams is equal to a number of the virtual X-ray detectors.

11. A method in accordance with claim 1 , wherein a number of intersection points is greater than or equal to the first predetermined number of virtual X-ray beams.

12. A method in accordance with claim 1 , wherein the second predetermined number of virtual X-ray beams at an intersection point is less than or equal to the first predetermined number of virtual X-ray beams.

13. A system comprising:

a computer configured to:

generate a plurality of virtual X-ray sources;

generate a plurality of virtual X-ray detectors;

generate a plurality of virtual X-ray beams, a first predetermined number of the plurality of virtual X-ray beams extending from each of the virtual X-ray sources to a respective virtual X-ray detector of the plurality of virtual X-ray detectors;

determine a plurality of intersection points at which a second predetermined number of the plurality of virtual X-ray beams intersect; and

generate a virtual primary collimator element corresponding to the plurality of intersection points; and

a fabricating device configured to form a real primary collimator element based on the generated virtual collimator element.

14. A system in accordance with claim 13 , wherein said fabricating device is configured to form an aperture at each intersection point of the plurality of determined intersection points.

15. A system in accordance with claim 13 , wherein said computer does not generate the virtual primary collimator element at an axis parallel to an axis that extends along the plurality of intersection points.

16. A system in accordance with claim 13 , further comprising a plurality of holders, wherein said real primary collimator element is configured to slide between the holders.

17. An imaging system comprising:

a plurality of X-ray sources each configured to generate a first predetermined number of X-ray beams forming a plurality of X-ray beams;

a detector configured to detect at least one X-ray beam of the first predetermined number of X-ray beams from each of said plurality of X-ray sources; and

a plurality of primary collimator elements spaced apart from each other by a gap and each primary collimator element of the plurality of primary collimator elements comprising a plurality of apertures, each aperture of said plurality of apertures located at an intersection point at which a second predetermined number of said plurality of X-ray beams intersects, wherein a first aperture of the plurality of apertures is located at a first intersection point at which a first X-ray beam of the second predetermined number of said plurality of X-ray beams intersects with a second X-ray beam of the second predetermined number of said plurality of X-ray beams when the plurality of X-ray beams are generated, each primary collimator element including a different number of apertures from any other primary collimator element.

18. An imaging system in accordance with claim 17 , wherein said imaging system does not include a primary collimator element at an axis parallel to an axis extending along said plurality of intersection points.

19. An imaging system in accordance with claim 17 , wherein said imaging system is configured to perform X-ray diffraction imaging.

20. An imaging system in accordance with claim 17 , wherein each primary collimator element of said plurality of primary collimator elements corresponds to a respective set of intersection points defining an axis, and each aperture of the plurality of apertures of each primary collimator element corresponding to a respective intersection point of the respective set of intersection points.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 6, 2025
From: SMITHS DETECTION INC.
To: SMITHS DETECTION GERMANY GMBH
Reel/Frame 073508/0846 →
MERGER Recorded Oct 30, 2025
From: SMITHS DETECTION, LLC
To: SMITHS DETECTION INC.
Reel/Frame 073406/0059 →
CHANGE OF NAME Recorded Oct 30, 2025
From: MORPHO DETECTION, LLC
To: SMITHS DETECTION, LLC
Reel/Frame 073411/0553 →
CORRECTIVE ASSIGNMENT TO CORRECT THE THE PURPOSE OF THE CORRECTION IS TO ADD THE CERTIFICATE OF CONVERSION PAGE TO THE ORIGINALLY FILED CHANGE OF NAME DOCUMENT PREVIOUSLY RECORDED ON REEL 032122 FRAME 67. ASSIGNOR(S) HEREBY CONFIRMS THE THE CHANGE OF NAME. Recorded Mar 19, 2014
From: MORPHO DETECTION, INC.
To: MORPHO DETECTION, LLC
Reel/Frame 032470/0682 →
CHANGE OF NAME Recorded Jan 24, 2014
From: MORPHO DETECTION, INC.
To: MORPHO DETECTION, LLC
Reel/Frame 032122/0067 →