Radiation Imaging Sensor Panel Support Segmentation for Pressure Equalization

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Solution Overview

Problem

Radiation imaging apparatuses face image quality deterioration and mechanical distortion due to atmospheric pressure differences and temperature changes, leading to artifacts and potential damage from continuous support member enclosures.

Innovation Solution

A radiation imaging apparatus design featuring a sensor panel with a pixel array and electrical connection portions supported by a first and second support member, where the second support member is fixed to the sensor panel and support base, and a passage extends from the first support member to the outer edge without overlapping the second support member, preventing continuous enclosure and reducing distortion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a frame-like support member is used to support the electrical connection portions, then breakage and deformation of the sensor panel are suppressed, but atmospheric pressure differences occur between the enclosed space and external space when temperature changes, causing sensor panel distortion and image artifacts

Engineering Contradiction:

Improvestructural support strengthVSAvoidimage quality stability

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The support member is designed with a segmented structure featuring multiple protrusions rather than a continuous frame. This segmentation creates multiple small enclosed spaces instead of one large enclosed space, allowing pressure equalization through gaps between segments while maintaining structural support for the electrical connection portions.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The harmful enclosed space is extracted or removed by introducing gaps between the support member protrusions. These gaps allow atmospheric pressure to equalize between the interior and exterior of the support member, eliminating the pressure differential that causes sensor panel distortion while retaining the supportive function.

Inventive Principle:

Principle #2Taking out (Extraction)

2Strength

If the second support member is positioned to overlap the electrical connection portion, then the electrical connection portion is properly supported, but the passage for pressure equalization is blocked

Engineering Contradiction:

Improveelectrical connection supportVSAvoidatmospheric pressure difference

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The support member protrusions are strategically positioned to provide local support exactly where the electrical connection portions need support, rather than using a continuous frame. The gaps between protrusions are deliberately placed to allow pressure equalization, creating different functional zones: support zones over electrical connections and open zones for pressure equalization.

Inventive Principle:

Principle #3Local quality

3Stability of the object's composition

If the support member continuously surrounds the pixel array, then the sensor panel is well-supported, but image quality deteriorates due to atmospheric pressure differences and temperature changes

Engineering Contradiction:

Improvesensor panel stabilityVSAvoidimage quality

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The continuous support structure is segmented into multiple discrete protrusions. This segmentation maintains stability by providing localized support points while eliminating the harmful effect of a continuous enclosed space that traps atmospheric pressure differences and causes image quality deterioration.

Inventive Principle:

Principle #1Segmentation

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

This design effectively suppresses image quality deterioration and mechanical distortion, reducing the risk of damage and improving the reliability of the radiation imaging apparatus by preventing atmospheric pressure differences and expansion coefficient mismatches.

Implementation Method 1

when the environmental temperature changes, an atmospheric pressure difference can occur between the space surrounded by the frame-like support member, the sensor panel, and the support substrate and the external space

Methodology Applied

Scientific EffectAtmospheric pressure equalization: Pressure Gradient

Implementation Method 2

a support base configured to support the second surface through a first support member and a second support member

Methodology Applied

Scientific EffectMechanical support: Mechanical Force

Data Source

PatentUS20240418875A1Radiation imaging apparatus, radiation imaging system, and manufacturing method for radiation imaging apparatus

Publication Date: 2024.12.19 CANON KK

AI summary

A radiation imaging apparatus including a sensor panel including a first surface provided with a pixel array and an electrical connector and a second surface, and a base configured to support the second surface through first and second members, is provided. In an orthogonal projection to the first surface, the electrical connector is provided between a region provided with the first member provided to overlap the pixel array and an outer edge of the panel and the second member is provided to overlap the electrical connector. The second member is fixed to at least one of the second surface, the base, and the first member, and a passage extending from the first member to the outer edge is provided between the second surface and the base not to overlap the second member in an orthogonal projection to the first surface.