Head X-Ray Imaging Beam Spread Control for Resolution Stability
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Solution Overview
Problem
The increase in distance between the X-ray detection unit and the subject to prevent contact results in a magnification ratio increase, leading to decreased imaging resolution in X-ray imaging.
Innovation Solution
The X-ray imaging apparatus includes a support that moves the X-ray generation and detection units relative to the subject, adjusting the spread of the X-ray beam in the vertical direction, and uses a drive mechanism to change the position and orientation of the X-ray generation source and detector, allowing for improved imaging resolution without increasing the distance between the units and the subject.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distance between the X-ray detection unit and the subject is increased to prevent contact, then the safety and stability of the detection unit is improved, but the magnification ratio increases and imaging resolution decreases
Solution Approach 1:
The support is made movable relative to the subject through a drive mechanism, allowing the X-ray generation unit and detection unit to dynamically adjust their positions. This enables the system to maintain optimal imaging resolution by minimizing the distance between detection unit and subject while ensuring safety through controlled movement, resolving the contradiction between reliability and measurement precision.
Solution Approach 2:
The system changes the positional parameters of the X-ray generation unit and detection unit by moving the support. By adjusting the distance between these units and the subject dynamically, the system can optimize both imaging resolution and safety, transforming the static contradiction into a dynamic optimization problem that can be solved through parameter adjustment.
2Measurement precision
If the distance between the X-ray generation unit and detection unit is reduced to improve imaging resolution, then the magnification ratio decreases and imaging resolution improves, but the complexity of positioning and safety control increases
Solution Approach 1:
The X-ray generation unit and detection unit are combined on a single movable support structure. This merging allows both units to be positioned and moved together as a single assembly, simplifying the positioning complexity while enabling reduced distance for improved imaging resolution. The support acts as a unified platform that coordinates both units' positions relative to the subject.
Solution Approach 2:
The movable support serves multiple functions: it positions the X-ray generation unit, positions the detection unit, and coordinates their relative distances to the subject. This multi-functionality reduces the overall system complexity by consolidating positioning tasks into a single mechanism, making it feasible to achieve improved imaging resolution without proportionally increasing complexity.
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 imaging resolution by reducing the need to move the detection unit away from the subject, maintaining a smaller distance, and adjusting the beam spread to optimize image quality.
Implementation Method 1
an X-ray generation source (126) generating an X-ray
Implementation Method 2
an X-ray detection unit (225) that includes an X-ray detector (226) receiving and detecting the X-ray beam transmitted through the head
Data Source
AI summary
An X-ray detection unit includes an X-ray detector that receives and detects the X-ray beam transmitted through the head. The support supports the X-ray generation unit and the X-ray detection unit. A drive mechanism moves the support such that the X-ray generation unit and the X-ray detection unit turn about an axis extending in a direction parallel to an apparatus vertical direction and around the head. An X-ray generation source moving unit moves the X-ray generation source in the apparatus vertical direction. The X-ray imaging apparatus increases a spread in the apparatus vertical direction of the X-ray beam when the X-ray generation source is located on an apparatus upper side, and decreases a spread in the apparatus vertical direction of the X-ray beam when the X-ray generation source is located on an apparatus lower side.