Stacked Radiation Detector Module for Thermal Stability and Alignment

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Solution Overview

Problem

Existing radiation detector modules in CT imaging systems face challenges in achieving smaller dimensions, lower costs, thermal stability, accurate alignment, ease of assembly, and reliability while maintaining image quality and accuracy.

Innovation Solution

A stacked multilayer structure comprising a detector layer, frame layer, and signal processing layer, with optional thermally conductive materials and heat management features, allowing for compact design and efficient signal processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If a radiation detector module uses a compact stacked multilayer structure, then the dimension and cost are reduced, but the thermal stability and alignment accuracy may be compromised

Engineering Contradiction:

Improvedetector module dimensionVSAvoidthermal stability

Core Design Contradiction:

Volume of moving objectVSStability of the object's composition

Solution Approach 1:

The detector module is divided into multiple functional layers (detector layer, frame layer, signal processing layer) that can be independently manufactured and then assembled. This segmentation allows each layer to be optimized for its specific function while maintaining overall compactness, resolving the contradiction between small size and thermal stability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The frame layer acts as an intermediary between the detector layer and signal processing layer, providing mechanical support and thermal management. The frame layer includes heat dissipation structures that actively manage thermal conditions, enabling compact design while maintaining thermal stability through this mediating structural element.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of manufacture

If components are closely integrated in a stacked structure, then assembly ease and reliability improve, but manufacturing precision requirements increase

Engineering Contradiction:

Improveassembly easeVSAvoidcomponent alignment accuracy

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

Alignment features and positioning structures are pre-integrated into the frame layer during its manufacturing process. These preliminary positioning elements guide the detector layer and signal processing layer into correct positions during assembly, reducing the precision requirements for final assembly while ensuring accurate component alignment.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The frame layer employs asymmetric positioning structures with different geometries for different components. This asymmetric design provides unique mechanical interlocks and alignment references for each layer, enabling easy assembly while maintaining high alignment accuracy through geometric constraints rather than relying solely on precision manufacturing.

Inventive Principle:

Principle #4Asymmetry

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The multilayer structure enables a more compact, cost-effective, and thermally stable radiation detector module with improved alignment and assembly, enhancing image quality and reliability.

Implementation Method 1

The detector layer is configured to detect a ray that is incident on the detector layer and convert the ray into an electrical signal

Methodology Applied

Scientific EffectRadiation detection and conversion: Photoelectric Effect

Implementation Method 2

The frame layer includes a thermally conductive material... the detector layer is attached to the frame layer by using a thermally conductive adhesive

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

at least part of a surface of the heater is covered with a thermal insulation layer. The thermal insulation layer is configured to block thermal conduction between the frame layer and the heater

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 4

a first heat sink is mounted on a surface of the second side of the frame layer... the first heat sink is disposed on at least part of the edge region

Methodology Applied

Scientific EffectHeat dissipation: Heat Sink

Data Source

PatentUS20260063811A1Radiation detector module, device, system and manufacturing method thereof

Publication Date: 2026.03.05 GE PRECISION HEALTHCARE LLC

AI summary

Provided in the present disclosure are a radiation detector module and apparatus, a system, and a manufacturing method. The radiation detector module includes a stacked multilayer structure. The multilayer structure includes: a detector layer, configured to detect a ray that is incident on the detector layer and convert the ray into an electrical signal; a frame layer, wherein the detector layer is disposed on a first side of the frame layer facing a radiation source and is fixed to the frame layer; and a signal processing layer, disposed on a second side of the frame layer opposite to the first side and fixed to the frame layer, wherein the signal processing layer is configured to communicate with the detector layer to receive the electrical signal and process the electrical signal.