Abstract: The invention concerns an X-ray sensing detector assembly, wherein the detector assembly comprises: at least one primary X-ray sensing member; and an X-ray blocking detector housing surrounding the at least one primary X-ray sensing member, wherein a first, upper side of the detector housing is provided with an X-ray window allowing passage of X-rays into the detector housing so as to allow X-rays directed towards the first, upper side of the detector housing to pass through the X-ray window and interact with the at least one primary X-ray sensing member. The detector assembly is provided with at least one secondary X-ray sensing member arranged outside of the detector housing, wherein an X-ray blocking element is arranged on an upper side of the secondary X-ray sensing member so as to prevent that the secondary X-ray sensing member is exposed to X-rays directed towards the first, upper side of the detector housing.

Abstract: The invention concerns an X-ray detection device comprising an X-ray sensing member and an X-ray energy filter comprising an attenuation member configured to attenuate low-energy X-rays to a greater extent than high-energy X-rays in a beam or field of X-radiation directed towards the X-ray sensing member.