Ge Precision Healthcare LLC

General Electric Medical Systems Israel, Ltd. (il)

Roi Harpaz

Arie Shahar

Elhanan Blaut

A radiation detector assembly is provided that includes a semiconductor detector, plural pixelated anodes disposed on a surface of the semiconductor detector, and at least one processor. Each pixelated anode generates a primary signal responsive to reception of a photon by the pixelated anode. The at least one processor is operably coupled to the pixelated anodes, and determines when a primary signal is generated by a given pixelated anode. Responsive to determining the presence of the primary signal in the given pixelated anode, the at least one processor disconnects the given pixelated anode from an electrical source, wherein a re-directed primary signal is directed to a surrounding pixelated anode of the given pixelated anode. The at least one processor identifies the surrounding pixelated anode, and assigns an event for the primary signal to a pre-determined sub-pixel portion of the given pixelated anode based on the identified surrounding pixelated anode.

Systems and methods for improved medical imaging

A radiation detector assembly is provided that includes a semiconductor detector, plural pixelated anodes disposed on a surface of the semiconductor detector, and at least one processor. Each pixelated anode is configured to generate a mixed primary signal responsive to reception of a photon by at least one surrounding anode of the pixelated anode and to generate a mixed secondary signal responsive to reception of a photon by the pixelated anode. The at least one processor is operably coupled to the pixelated anodes, and is configured to: acquire the mixed primary signal from a first pixelated anode; acquire the mixed secondary signal from a second pixelated anode; and count an event in the second pixelated anode responsive to acquiring the mixed primary signal from the first pixelated anode and the mixed secondary signal from the second pixelated anode.

A radiation detector assembly is provided that includes a semiconductor detector, plural pixelated anodes, and at least one processor. The semiconductor detector has a surface. The plural pixelated anodes are configured to generate a primary signal responsive to reception of a photon by the pixelated anode and to generate at least one secondary signal responsive to an induced charge caused by reception of a photon by at least one surrounding anode. The at least one processor is configured to: acquire a primary signal from one of the anodes responsive to reception of a photon; acquire at least one secondary signal from at least one neighboring pixel of the one of the anodes, the at least one secondary signal defining a negative value; and determine an energy correction factor for the reception of the photon using the negative value of the at least one secondary signal.

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Holon, Israel

Roi Harpaz