Method and arrangement relating to x-ray imaging
OwnerMats Danielssoninventor
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Abstract
The present invention relates to a method and arrangement for detecting substantially the entire signal from a photon converting in a detector in an x-ray detecting arrangement (200, 300, 400), which results in charge-sharing, said arrangement comprising a number of spaced apart sensors (220, 320, 420), said detected photons indirectly creating an amount of free charges proportional to the photon energy. The method comprises the steps of arranging a blocking means (230, 330, 430) between said spaced apart sensors for stopping x-rays that will be incident close to edges of said sensors and will give rise to charge sharing between adjacent sensors. The blocking means comprises etched layers composed together to a blocking layer. The arrangement comprising said blocking means.
Claims10
A method for detecting substantially the entire signal from a photon converting in a detector in an x-ray detecting arrangement (200, 300, 400), which results in charge-sharing, said arrangement comprising a number of spaced apart sensors (220, 320, 420), said detected photons indirectly creating an amount of free charges proportional to the photon energy,
- characterised by
- arranging a blocking means (230, 330, 430) between said spaced apart sensors for stopping x-rays that will be incident close to edges of said sensors and will give rise to charge sharing between adjacent sensors, said blocking means being produced through etching and composed together to a blocking layer.
The method according to any of preceding claims,
- characterised in
- that said blocking means comprises a blocking material, such as wolfram, copper or any other element or compound with a reasonably high stopping power for x-rays.
In an assembly for detecting and counting photons in x-ray beams, an arrangement when detecting substantially the entire signal from said photons converting in a detector in an x-ray detecting arrangement (200, 300, 400) comprising a number of spaced apart sensors (220, 320, 420), said detected photons indirectly creating an amount of free charges proportional to the photon energy
- characterised in
- that said arrangement comprises a blocking means (230, 330, 430) between said spaced apart sensors for blocking charge sharing between the sensors, said blocking means comprising etched layers (431) composed together to a blocking layer.
Dependencies are inferred from the claim text.