Adjustable Radiation Detector Support for Precise QA Positioning
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Solution Overview
Problem
Existing radiation therapy quality assurance systems lack precise and automated methods for accurately measuring and positioning radiation detectors within phantoms to ensure consistent radiation delivery.
Innovation Solution
A system featuring a tank with a drive system and an adjustable radiation detector support that allows for three-dimensional movement and precise axial translation of radiation detectors using components like adjustable nuts, sleeves, and adapters, enabling automated and fine-tuned positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed radiation detector support is used, then the device complexity is reduced, but the positioning precision and adaptability are insufficient
Solution Approach 1:
The support structure incorporates adjustable components including a movable sleeve within a housing, threaded adjustment mechanisms, and spring-loaded clamping systems that allow dynamic repositioning of the radiation detector along the phantom central axis while maintaining secure holding capability
Solution Approach 2:
The support device is divided into functional segments: a housing containing the adjustment mechanism, a movable sleeve for positioning, a clamping system for securing the detector, and a release mechanism for easy detachment, allowing each component to perform its specific function independently
2Productivity
If manual positioning of radiation detectors is used, then the device complexity is minimized, but the productivity and measurement consistency are reduced
Solution Approach 1:
The system replaces manual positioning with an automated drive system that mechanically moves the adjustable support along the phantom central axis, enabling programmable, repeatable positioning sequences that improve productivity and measurement consistency
Solution Approach 2:
The spring-loaded clamping mechanism automatically secures the radiation detector when the sleeve is positioned, and the release mechanism allows automatic detachment, reducing the need for manual intervention and improving operational efficiency
3Adaptability or versatility
If a simple support structure is used, then the ease of manufacture is improved, but the adaptability to different detector positions and types is limited
Solution Approach 1:
The support device is designed with universal adaptability to accommodate different types and sizes of radiation detectors through the movable sleeve and adjustment mechanisms, while maintaining a relatively simple overall structure that can be manufactured using standard machining processes
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
Enables accurate and automated measurement of radiation doses by allowing precise positioning of radiation detectors within phantoms, enhancing the reliability of radiation therapy quality assurance.
Implementation Method 1
The trolley can include a magnet configured to facilitate holding the adjustable radiation detector support in place on the trolley
Data Source
AI summary
Disclosed is a system for performing radiation therapy quality assurance. The system includes a tank, a drive system configured to move a radiation detector in three dimensions within the tank and an adjustable radiation detector support configured to be coupled to the drive system. The adjustable radiation detector support has an aperture for receiving a radiation detector and is configured to translate the radiation detector in an axial direction relative to the adjustable radiation detector support.