Tactile Sensor Validation for Radiation Detector Axis Linearity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for validating the axis linearity and positioning accuracy of radiation detectors in irradiation devices are inadequate, particularly in strong external magnetic fields and water-filled environments, as external interferometric systems are impaired by the magnetic field and cannot operate under real conditions.
Innovation Solution
A method and device using a tactile sensor element within a water phantom to detect a standard element via a displacement mechanism, allowing for tactile validation of axis linearity and positioning accuracy, which is resistant to strong magnetic fields and can operate within a water-filled container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an external interferometric measurement system is used to validate axis linearity, then measurement capability is provided, but the system cannot operate under real conditions (in strong magnetic fields and water-filled environments)
Solution Approach 1:
The measurement system is extracted from the external environment and placed inside the water phantom, eliminating the harmful effects of the magnetic field and water on the measurement components. The tactile sensor and standard element operate together within the water-filled container, allowing validation under real treatment conditions.
Solution Approach 2:
A tactile sensor element serves as an intermediary that can operate within the water phantom and interact with a standard element. This tactile detection mechanism bridges the gap between the water-filled environment and the measurement function, enabling validation without external interferometric systems that are impaired by magnetic fields.
2Adaptability or versatility
If a tactile sensor element is used within the water phantom, then validation under real conditions is enabled, but device complexity increases
Solution Approach 1:
The water phantom itself serves the dual function of being both the treatment medium and the measurement environment. The tactile sensor and standard element are simple mechanical components that leverage the existing water-filled container structure, rather than requiring complex external measurement infrastructure.
Solution Approach 2:
Instead of using complex optical interferometric systems, the patent employs simple tactile detection that replicates the measurement function through direct mechanical contact. The tactile sensor element and standard element create a simplified measurement model that avoids the complexity of external optical systems while achieving the same validation purpose.
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 reliable validation of axis linearity and positioning accuracy of radiation detectors under real conditions, including within a strong external magnetic field, without disrupting the measurement accuracy, and can be configured in a cost-effective manner to be MR-suitable.
Implementation Method 1
a tactile sensor element arranged within a container for receiving a liquid to tactilely detect a standard element arranged within the container
Data Source
AI summary
A method for validating the axis linearity of a displacement mechanism for a radiation detector configured to detect high-energy radiation emitted by an irradiation device comprises providing a container configured to receive a liquid. A tactile sensor and a standard element are positioned within the container configured for receiving the liquid. A displacement mechanism is structured to displace at least one of: (1) the tactile sensor; and (2) the standard element along at least one spatial axis. The tactile sensor is used to tactilely detect the standard element.