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1. (WO2017153198) COMBINED X-RAY AND NUCLEAR IMAGING

Pub. No.:    WO/2017/153198    International Application No.:    PCT/EP2017/054540
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: A61B 6/00
A61B 6/03
G01T 1/16
G21K 1/02
G06T 11/00
Applicants: KONINKLIJKE PHILIPS N.V.
Inventors: WIECZOREK, Herfried Karl
GOEDICKE, Andreas
ALVING, Peter Lex
Title: COMBINED X-RAY AND NUCLEAR IMAGING
Abstract:
The invention relates to a combined imaging detector (110) for the detection of x-ray and gamma quanta. The combined imaging detector (110) is adapted for simultaneous detection of gamma and x-ray quanta. The combined imaging detector (110) includes an x-ray anti-scatter grid (111), a layer of x-ray scintillator elements (112), a first photodetector array (113), a layer of gamma scintillator elements (114), and a second photodetector array (115) that are arranged in a stacked configuration along a radiation-receiving direction (116). The x-ray anti-scatter grid (111) comprises a plurality of septa (117A, B, C) that define a plurality of apertures (118) which are configured to collimate both x-ray quanta and gamma quanta received from the radiation receiving direction (116) such that received gamma quanta are collimated only by the x-ray anti-scatter grid (111). The use of the x-ray anti-scatter grid as a collimator for received gamma quanta results in a significantly lighter combined imaging detector.