Calibration Device for Radiation Machine Alignment
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Solution Overview
Problem
Existing radiation machine alignment systems require frequent recalibration due to deviations in the intersection point of laser beams from the true isocenter, making the process time-consuming and requiring skilled personnel.
Innovation Solution
A calibration device with a moveable target object and positioner, allowing for precise adjustment of alignment lasers by determining the isocenter position using a processor and radio-opaque markers, enabling automatic or manual alignment with a physical target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If laser alignment is performed manually by experienced service personnel, then alignment precision can be achieved, but the process becomes time-consuming and complex
Solution Approach 1:
The calibration device enables self-service alignment by providing a physical target object with known position and orientation features. The alignment device can automatically determine its own alignment status by observing the target object, eliminating the need for skilled service personnel to manually perform alignment procedures.
Solution Approach 2:
The physical target object serves as an intermediary between the alignment device and the isocenter. The target object contains encoded position and orientation information that mediates the alignment process, allowing the alignment device to accurately determine its alignment status without direct manual intervention.
2Ease of operation
If manual laser alignment is used, then alignment can be performed, but it requires skilled personnel and is difficult to perform
Solution Approach 1:
The calibration device enables self-service alignment by providing a physical target object with known position and orientation features. The alignment device can automatically determine its own alignment status by observing the target object, eliminating the need for skilled service personnel to manually perform alignment procedures.
Solution Approach 2:
The physical target object creates a tangible copy or representation of the abstract isocenter position. By interacting with this physical copy that encodes alignment information, the alignment process becomes more intuitive and easier to perform without requiring complex manual procedures.
3Reliability
If recalibration is performed periodically to correct deviations, then alignment accuracy is maintained, but time and resources are consumed
Solution Approach 1:
The calibration device enables self-service alignment by providing a physical target object with known position and orientation features. The alignment device can automatically determine its own alignment status by observing the target object, eliminating the need for skilled service personnel to manually perform alignment procedures.
Solution Approach 2:
The calibration device provides feedback about the alignment status through the physical target object that encodes position and orientation information. The alignment device can observe this feedback and automatically adjust or report its alignment state, making recalibration more efficient and less resource-intensive.
Data Source
AI summary
A calibration device includes a structure, and a target object that is moveably coupled to the structure, the target object being a physical target towards which an alignment device can be aimed. A calibration device includes a block having a first opening, and a target object that is viewable through the first opening. A method of calibrating an alignment device includes determining a target position associated with a machine, placing a target object at the target position, and adjusting the alignment device using the target object. A calibration device includes a target object, the target object being a physical target towards which an alignment device can be aimed, wherein the target object comprises a first feature for indicating a first orientation of the target object.