Detector with non-circular field of view
AssigneeKoninklijke Philips Electronics N.V.
InventorsDaniel Gagnon, Christopher G. Matthews
Life of this patent
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Abstract
A radiation detector includes a slit collimator. A radiation detector receives radiation which has been received in each of the slits. The aspect ratio of the detector is approximately three, and each semiconductor radiation detector has a transverse dimension which is less than that of its respective slit. A reconstruction processor generates an image indicative of the radiation received by the detectors. The detector may be rotated about a fixed axis. Alternately, the detector may be translated in coordination with its rotation to provide a substantially square field of view.
Claims25
A rotating laminar radionuclide camera having a non-circular field of view.
A radiation detection apparatus comprising:
- a gamma radiation detector having a plurality of spaced apart radiation attenuative septa;
- and
- a drive operatively connected to the detector so as to cause a rotation of the detector about an axis of rotation and a translation of the axis of rotation such that the detector has a non-circular field of view.
A radiation detection method comprising:
- using a radiation sensitive detector having a plurality of spaced apart radiation attenuative septa to detect radiation indicative of radionuclide decays;
- rotating the detector in a plane;
- and
- in coordination of with the rotation of the detector, translating the detector so that the detector has a non-circular field of view.
A radiation detection method comprising:
- using a detector having a slit collimator to detect gamma radiation indicative of radionuclide decays;
- rotating the detector about an axis of rotation so as to vary the angular relationship between the slit collimator and an object under examination;
- and
- translating the axis of rotation along a closed, non-linear path whereby the detector has a non-circular field of view.
Dependencies are inferred from the claim text.