Patent Number: 
Section: claims

1. A system for aligning collimators in an imaging system, comprising:a transmitter coupled to a first detector and configured to transmit a laser beam;a receiver coupled to a second detector and configured to receive the laser beam transmitted from the first detector;a cart comprising two collimators and an alignment device with an opening; anda motor configured to move the first and second detectors to an alignment position where the laser beam travels through the opening of the alignment device. 2. The system of claim 1, wherein the alignment device comprises a plate with a tube positioned within the opening. 3. The system of claim 1, wherein the motor moves the first and second detectors in a generally vertical direction. 4. The system of claim 1, wherein the first and second detectors are moved to the alignment position automatically. 5. A system for aligning collimators in an imaging system, comprising:a transmitter coupled to a first detector and configured to transmit a beam;a receiver coupled to a second detector and configured to receive the beam transmitted from the first detector;a cart comprising an alignment device, the cart configured to hold at least two collimators; anda control system configured to align the first and second detectors with the at least two collimators using the alignment device;wherein the first and second detectors are aligned with the cart when the beam is transmitted from the first detector, travels through an opening in the alignment device, and is received by the second detector. 6. The system of claim 5, comprising at least one actuator in communication with the control system, and wherein the first and second detectors are aligned with the at least two collimators by movement of at least one of the first and second detectors via the at least one actuator. 7. The system of claim 5, wherein the first and second detectors are aligned with the at least two collimators by alignment of the first and second detectors with one another via the alignment device. 8. The system of claim 5, wherein the first detector is configured to transmit a laser beam and the second detector is configured to receive the laser beam. 9. The system of claim 5, wherein the alignment device comprises a plate with an opening. 10. The system of claim 5, wherein the plate comprises a tube positioned within the opening. 11. The system of claim 5, wherein the control system moves the first and second detectors in a generally vertical direction. 12. The system of claim 11, wherein the control system moves the first and second detectors in a generally horizontal direction. 13. The system of claim 5, wherein the control system moves the cart. 14. A method for aligning collimators in an imaging system, comprising:transmitting a beam via a transmitter coupled to a first detector;receiving the beam via a receiver coupled to a second detector;detecting a cart between the first and the second detectors, the cart comprising an alignment device and configured to hold at least two collimators; andadjusting the position of the first and second detectors to be aligned with the alignment device;wherein the first and second detectors are aligned with the alignment device when the beam travels through an opening in the alignment device before it is received by the second detector. 15. The method of claim 14, comprising attaching a first collimator to the first detector and a second collimator to the second detector. 16. The method of claim 14, wherein the alignment device comprises a plate with an opening. 17. The method of claim 14, wherein adjusting the position of the first and second detectors comprises moving the first and second detectors in a generally vertical direction. 18. The method of claim 14, wherein adjusting the position of the first and second detectors occurs automatically.