Autonomous tangential motion control in a multi-detector gamma c

Details Autonomous tangential motion control in a multi-detector gamma c Autonomous tangential motion control in a multi-detector gamma c

1998-05-11

2000-10-24

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

G01T 1166

Patent

active

061371092

ABSTRACT:
The configuration of a multi-head gamma camera requires coordination between tangential and radial motions so that the detectors maintain a desired orientation, either corner to corner or overlapping. Based on the radial and angular positions of the detectors, desired tangential positions are determined. The desired tangential positions are compared with the actual tangential positions, to generate position error signals. Tangential motion is initiated to reduce the position errors. If the required tangential motion exceeds the capability of the tangential drive or cannot be achieved, the radial motion is slowed or stopped.

REFERENCES:
patent: 3777145 (1973-12-01), Brunnett et al.
patent: 5206512 (1993-04-01), Iwao
patent: 5349190 (1994-09-01), Hines et al.
patent: 5691538 (1997-11-01), Ohike et al.

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