X-ray Talbot Imaging Apparatus Light Absorbing Intermediary

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Solution Overview

Problem

The accuracy of identifying a position in a subject using an X-ray Talbot imaging apparatus is reduced due to structural reflections and light saturation in camera images, caused by the grating structure, which also superimposes boundaries on the subject image.

Innovation Solution

An X-ray Talbot imaging apparatus and method that includes a radiation source, subject table, and a plurality of gratings arranged in a radiation irradiation axis direction, with an object that absorbs visible light placed between the first grating and the subject, to prevent reflection and improve image clarity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a camera is used to capture visible light images for position identification, then the position can be identified on the Talbot image, but structural reflections from gratings cause light saturation and reduce image quality

Engineering Contradiction:

Improveposition identification accuracyVSAvoidbackground reflection and light saturation

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

A black cloth is introduced as an intermediary object between the grating and the subject. This intermediary absorbs visible light and prevents reflections from the grating structure from reaching the camera, thereby eliminating the harmful background reflections and light saturation while allowing the camera to accurately capture the subject's position for identification purposes

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If grating structures are used in X-ray Talbot imaging, then imaging capability is achieved, but grating boundaries are superimposed on the subject image reducing identification accuracy

Engineering Contradiction:

Improveimaging capabilityVSAvoidposition identification accuracy

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The black cloth serves as a mediator that blocks visible light reflections from the grating boundaries. By placing this light-absorbing intermediary between the grating and subject, the camera can capture the subject without the grating boundaries being superimposed on the image, thus maintaining both imaging capability and identification accuracy

Inventive Principle:

Principle #24Intermediary (Mediator)

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 configuration enhances the accuracy of identifying positions in subjects by reducing background reflections and light saturation, leading to clearer visible light images and improved position identification in nondestructive inspections.

Implementation Method 1

an object that absorbs visible light is placed between the first grating and a subject

Methodology Applied

Scientific EffectAbsorption (EM radiation): Absorption (EM radiation)

Data Source

PatentUS20240361256A1X-ray talbot imaging apparatus and x-ray talbot imaging method

Publication Date: 2024.10.31 KONICA MINOLTA INC

AI summary

Disclosed is an X-ray Talbot imaging apparatus for nondestructive inspection, the apparatus including: a radiation source; a subject table; a plurality of gratings; and a radiation detector. The radiation source, the subject table, the plurality of gratings, and the radiation detector are provided in order side by side in a radiation irradiation axis direction, the plurality of gratings include at least a first grating and a second grating in order from a grating close to the subject table, and an object that absorbs visible light is placed between the first grating and a subject.