X-ray detecting apparatus
AssigneeHeimann Systems GmbH
InventorsAndreas Frank, Patricia Schall, Georg Geus
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Abstract
The detector materials (8, 9) of a low energy detector (5) and a high energy detector (6) are coordinated with one another to permit better separation of lower and higher energy fractions of polychromatic X-ray (X′) radiation, and consequently, create a better determination of a material of an object through which the X-rays are passed. Thus, a negligible persistence in comparison with the integration time between two detector readings is achieved.
Claims15
A detector arrangement for detecting X-rays, comprising at least one low energy detector, and at least one high energy detector arranged downstream, where individual energy ranges of the X-ray are emitted at the same time on an object through which X-rays are passed and are attenuated in the process, wherein the low energy detector has as a detector material a scintillator comprising at least one element with an atomic number of 30 to 40, but not containing any element having a larger atomic number, said detector material being coordinated with a detector material of the high energy detector, and the latter detector material is a ceramic scintillator containing at least one element with an atomic number greater than 60.
A detector arrangement for detecting X-rays, comprising:
- at least one low energy detector;
- and
- at least one high energy detector arranged downstream, where individual energy ranges of the X-ray are emitted at the same time on an object through which X-rays are passed and are attenuated in the process, wherein the low energy detector has as a detector material a scintillator comprising zinc selenide doped with tellurium (ZnSe(Te)), but not containing any element having a larger atomic number, said detector material being coordinated with a detector material of the high energy detector, and the latter detector material is a ceramic scintillator containing at least one element with an atomic number greater than 60.
Dependencies are inferred from the claim text.