X-ray Source Camera Alignment System
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Solution Overview
Problem
In X-ray systems, operators face inefficiencies when positioning the X-ray source due to the need to reposition themselves to check alignment, which can be improved by a camera-based visual alignment system with a field of view coincident with the X-ray beam.
Innovation Solution
An X-ray system utilizing a visible light video or still image camera to capture and display the X-ray radiation field, allowing the operator to center the X-ray source using a display screen and the X-ray source assembly as an optical reference for aiming, with the camera mounted on the X-ray source assembly to simulate the view from the X-ray source position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the operator positions the X-ray source assembly based on their point of view and adjusts their position to check alignment, then the alignment can be verified from multiple perspectives, but the operator workflow becomes inefficient and time-consuming
Solution Approach 1:
The patent creates a visual copy of the X-ray beam path and radiation field using a camera and display system. The camera captures the radiation field and displays it on a screen, allowing the operator to view the alignment from a fixed position without needing to physically reposition themselves. This visual copy enables continuous monitoring of alignment status.
Solution Approach 2:
The display screen acts as an intermediary between the operator and the X-ray source positioning. Instead of the operator directly observing the alignment from multiple positions, the display screen mediates by showing a captured image of the radiation field, transmitting alignment information to the operator's location and eliminating the need for physical repositioning.
2Ease of operation
If a camera-based visual alignment system is implemented, then the operator can center the X-ray source more accurately without repositioning, but the device complexity increases
Solution Approach 1:
The camera system serves multiple functions: it captures the radiation field for alignment visualization, provides a fixed viewing position for the operator, and enables continuous monitoring without physical repositioning. This multi-functionality justifies the added complexity by solving multiple operational problems simultaneously.
Solution Approach 2:
The patent replaces the mechanical approach of physical repositioning with an optical/electronic system. Instead of the operator moving their body to change viewing angles, a camera captures the scene and transmits it to a display, substituting mechanical movement with optical capture and electronic transmission.
3Measurement precision
If the camera field of view is made coincident with the X-ray beam, then the alignment accuracy is maximized, but the camera positioning and optical alignment become more difficult
Solution Approach 1:
The system performs preliminary alignment by capturing the radiation field geometry before the actual X-ray exposure. The camera is positioned to capture the radiation field, and the display shows this captured geometry, allowing alignment to be established and verified before the X-ray beam is activated, simplifying the overall positioning process.
Solution Approach 2:
The camera and display system creates an equipotential viewing position for the operator. By capturing and displaying the radiation field geometry, the system equalizes the information availability regardless of the operator's physical position, making the alignment process independent of the operator's location.
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 operator workflow by providing a convenient and accurate method for aligning the X-ray source, reducing the need for repositioning and improving alignment precision, especially in portable and hand-held X-ray systems.
Implementation Method 1
A camera is included for capturing an optical image of the radiation field
Implementation Method 2
an X-ray source configured to emit an X-ray beam
Data Source
AI summary
An X-ray imaging system uses an X-ray source to emit an X-ray beam for exposing a desired radiation field. A camera is configured to capture a current image of the radiation field and to display a current image of the radiation field before the exposure is activated.