X-ray system and ct system

EP4747614A1Pending Publication Date: 2026-05-27FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
Filing Date
2024-07-17
Publication Date
2026-05-27

AI Technical Summary

Technical Problem

The existing X-ray systems for quality assurance of vehicle battery modules suffer from inadequate image quality due to limited radiation energy, leading to high costs and reduced reliability in evaluating the internal structure of battery modules.

Method used

An X-ray system with a linear accelerator emitting X-rays above 1 MeV in a conical beam angle, utilizing multiple X-ray detectors and a two-stage collimator to create separate partial cones, allowing for simultaneous examination of multiple battery modules with improved imaging and cost efficiency.

Benefits of technology

This approach enhances the reliability and cost-effectiveness of quality assurance by increasing throughput and maintaining high image quality, reducing investment costs per examined object while ensuring comprehensive coverage of battery modules.

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Abstract

The invention relates to an X-ray system for inspecting N objects (O), in particular N battery modules for quality control, having the following features: a linear accelerator (1), which is designed to emit X-rays (R) with an energy ≥ 1 MeV at a conical radiation angle (8); N X-ray detectors (13a, 13b, 13c, 13d), which are each designed to detect the X-rays (R) in a partial cone (8a, 8b, 8c, 8d) of the conical radiation angle (8); N axes of rotation (12a, 12b, 12c, 12d) and (4a, 4b) for N objects (O), which are each assigned to a partial cone (8a, 8b, 8c, 8d) and are arranged in each of them; a collimator (3, 3'), which is designed with two stages, wherein a first stage defines the conical radiation angle (8) at which the X-rays (R) are emitted, and wherein a second stage (10) defines the N partial cones (8a, 8b, 8c, 8d).
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