Detector for X-ray fluorescence
AssigneeShenzhen Xpectvision Technology Co., Ltd.
InventorsPeiyan Cao, Yurun Liu
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Abstract
Disclosed herein is a detector, comprising: a plurality of pixels, each pixel configured to count numbers of X-ray photons incident thereon whose energy falls in a plurality of bins, within a period of time; and wherein the detector is configured to add the numbers of X-ray photons for the bins of the same energy range counted by all the pixels. Each of the pixels may comprise an analog-to-digital converter (ADC) configured to digitize an analog signal representing the energy of an incident X-ray photon into a digital signal. The pixels may be able to operate in parallel. Each of the pixels may be able to measure its dark current, such as before or concurrently with each X-ray photon incident thereon.
Claims22
A detector, comprising:
- a plurality of pixels, each pixel configured to count numbers of X-ray photons incident thereon whose energy falls in a plurality of bins of different energy ranges respectively, within a period of time;
- and
- wherein the detector is configured to sum the numbers counted by all the pixels from only the bins of the same energy range.
A method for measuring an energy spectrum of X-ray, comprising:
- exposing a detector with a plurality of pixels to X-ray;
- determining a number of X-ray photons for each of the pixels for one bin of a plurality of bins of different energy ranges respectively, wherein energy of the X-ray photon falls in the one bin;
- summing the numbers determined for all the pixels from only the bins of the same energy range.
Dependencies are inferred from the claim text.