Adjustable X-ray Test Device for Large Tunnel Scanners
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Solution Overview
Problem
There is a lack of a standard test piece for evaluating the performance of medium and large X-ray examination systems, particularly those with tunnel sizes greater than 1000mm x 1000mm, as existing standards like ASTM F 792 - 01E2 are inadequate for larger systems and do not account for angle adjustments, leading to inefficiencies and inaccuracies in testing.
Innovation Solution
A test device designed for large tunnel sizes, capable of being transported by forklift, with adjustable vertical and horizontal test angles, and incorporating modules for wire resolution, penetration, and materials discrimination, allowing for comprehensive testing of X-ray systems without the need for additional support or preparation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If ASTM F 792 - 01E2 standard suitcase is used for testing, then small cabinet machines can be evaluated, but medium and large tunnel systems cannot be properly tested
Solution Approach 1:
The test device is divided into multiple independent test modules (wire resolution module, penetration module, materials discrimination module) that can be selectively assembled. This segmentation allows the test device to be configured for different X-ray system sizes and energies, making it adaptable from cabinet machines to large tunnel systems while maintaining accurate evaluation capabilities for each system type.
Solution Approach 2:
The test device incorporates adjustable angular positioning capabilities in both vertical and horizontal dimensions. This dimensional adjustment allows the test device to accommodate different scanner contraction geometries and beam angles, enabling proper testing of medium and large tunnel systems that have different operational angles compared to cabinet machines.
2Ease of operation
If fixed angle test setup is used, then setup is simple, but scanner contraction geometries cannot be accounted for
Solution Approach 1:
The test device features dynamically adjustable angular positioning mechanisms that allow operators to set vertical and horizontal test angles according to the specific scanner geometry being tested. This dynamic adjustment capability maintains operational simplicity while ensuring accurate accounting for different scanner contraction geometries and beam angles.
Solution Approach 2:
The test device allows changing of geometric parameters (angles) to match the specific scanner configuration. By adjusting the vertical and horizontal angles to correspond to the scanner's contraction geometry, the device maintains both ease of setup and measurement precision for different system configurations.
3Measurement precision
If multiple passes through the system are required for complete testing, then comprehensive data can be collected, but testing time increases to over six hours
Solution Approach 1:
Multiple test modules (wire resolution, penetration, materials discrimination) are merged into a single integrated test device that can be positioned to undergo comprehensive testing in one pass through the X-ray system. This consolidation eliminates the need for multiple separate passes and lengthy testing procedures, reducing total testing time from over six hours to a single efficient pass while maintaining complete performance evaluation.
Solution Approach 2:
The test device is designed as a universal multi-functional unit that can perform wire resolution testing, penetration testing, and materials discrimination testing simultaneously or in combination. This multi-functionality allows all required performance parameters to be evaluated in a single pass through the X-ray system, dramatically improving testing efficiency while maintaining comprehensive data collection.
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
The test device enables efficient and accurate assessment of X-ray system performance, reducing testing time and improving accuracy by accommodating larger systems and higher energies, and allowing for one-pass testing of multiple parameters, thus optimizing system performance and maintenance.
Implementation Method 1
The test device comprises a support, e.g. a frame, having at least one test module mounted thereon... capable of being used in a test for an aspect of the detection capability of an X-ray system
Data Source
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Figure 5(a)~5(c)
AI summary
The invention provides a test device for assessing the detection capability of an X-ray system with a medium and/or large tunnel size. The device comprises a support and at least one test module mounted on the support. The device may optionally also comprise a stand which holds the support at a predetermined angle to the horizontal. The test module, or at least one of the test modules, is capable of being used in a test for an aspect of the detection capability.