X-ray Detector Thermal Management via Dedicated Air Guiding
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Solution Overview
Problem
Conventional X-ray inspection apparatuses fail to effectively suppress temperature changes in X-ray detectors, leading to increased noise and reduced detection accuracy.
Innovation Solution
An X-ray inspection apparatus is designed with an air-guiding unit that includes ventilation channels and fans to cool and warm the X-ray detector, maintaining a stable temperature by guiding air to the detector and optionally integrating it with a control board, and using a cold-air blower to supply cold air through branching ducts for effective cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the X-ray emitter is cooled with a ventilation channel and cooling fin, then the X-ray emitter temperature is controlled, but the X-ray detector temperature cannot be suppressed
Solution Approach 1:
The patent divides the thermal management system into separate ventilation channels: one channel for cooling the X-ray emitter and another channel for cooling the X-ray detector. This segmentation allows independent temperature control of each component, resolving the contradiction by enabling the detector to be cooled without interfering with the emitter cooling system.
Solution Approach 2:
The patent introduces air as an intermediary cooling medium that is guided to the X-ray detector through a dedicated ventilation channel. This intermediary approach allows heat removal from the detector without direct thermal contact, maintaining detection accuracy while controlling temperature.
2Device complexity
If the control board is formed integrally with the X-ray detector, then the device structure is simplified, but heat generation increases temperature change in the detector
Solution Approach 1:
The patent separates the thermal management function from the structural integration by providing a dedicated ventilation channel that directs air flow specifically to the X-ray detector portion of the integrated unit. This allows the control board to remain integrated with the detector while the cooling system operates independently on the detector side.
Solution Approach 2:
The patent applies local quality by directing cooling air specifically to the X-ray detector region within the integrated unit, rather than uniformly cooling the entire assembly. This localized cooling approach addresses the heat generation issue at the detector while allowing the control board to maintain its integrated position.
3Temperature
If air is guided to the X-ray detector for cooling, then temperature change is suppressed, but device complexity increases with additional ventilation components
Solution Approach 1:
The patent designs the ventilation channel to serve multiple functions: it cools the X-ray detector, and when integrated with the emitter cooling channel, it also contributes to overall system thermal management. The fan unit is positioned to potentially serve both detector and emitter cooling needs, reducing the total number of components required.
Solution Approach 2:
The patent merges the detector ventilation channel with the emitter ventilation channel system, allowing a single fan unit to potentially serve both cooling functions. This combination reduces the overall device complexity by sharing common components while still providing dedicated cooling paths for each component.
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 solution effectively suppresses temperature changes in the X-ray detector, improving detection accuracy and allowing simultaneous acquisition of transmission images across multiple energy bands, even when the control board generates significant heat.
Implementation Method 1
an air-guiding unit configured to guide air to at least part of the X-ray detector... the X-ray detector can be cooled and warmed with air guided by the air-guiding unit
Implementation Method 2
the air-guiding unit may include: a ventilation channel serving as a flow passage for the air; and at least one of a fan configured to draw the air into the ventilation channel and a fan configured to discharge the air from the ventilation channel
Implementation Method 3
a cold-air blower configured to supply cold air to the ventilation channel, the ventilation channel may have a branching portion, and cold air supplied by the cold-air blower may be guided to the X-ray detector and the X-ray emitter through the branching portion
Data Source
AI summary
An X-ray inspection apparatus includes: an X-ray emitter configured to emit an X-ray; an X-ray detector configured to detect the X-ray; a first flow passage configured to guide air to at least part of the X-ray detector; and a second flow passage configured to guide air to at least part of the X-ray detector.