Method and arrangement relating to x-ray imaging

Details Method and arrangement relating to x-ray imaging Method and arrangement relating to x-ray imaging

2005-11-18

2008-03-11

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

C378S098900, C378S098110, C378S098120

Reexamination Certificate

active

07342233

ABSTRACT:
An X-ray apparatus is provided for acquisition of images containing spectral information. An X-ray source and a collimator having multiple slits are operable together with a set of line detectors, the line detectors including linear arrays of photon counting channels. Each of the channels includes a photon conversion channel element which is operable to convert photons to electric pulses. A plurality of pulse counters are operable to count pulses in a plurality of different ranges of pulse strength, where the strength of a pulse depends on the energy of the photon. Further, an arrangement is included for an energy subtracting operation.

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Norlin et al., “Energy Dependence in Dental Imaging with Medipx2”, Nuclear Instruments & Methods in Physics Research, A 546 (2005) 19-23.
Johns et al., “Photon-Counting Detectors for Digital Radiography and X-Ray Computed Tomography”, Optoelectronics, Photonics, and Imaging, SPIE TD01, (2002), 367-369.

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