Wind Shielding for CT Detector Cooling Stability
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Solution Overview
Problem
The existing air cooling systems in radiation tomographic imaging apparatuses struggle to maintain stable temperature of detecting elements due to heat conduction from electrical/electronic components and varying wind patterns caused by the gantry's rotational speed, leading to instability in radiation detection characteristics.
Innovation Solution
The implementation of a first and second wind shielding unit to redirect and shield external wind, ensuring efficient air cooling is applied only to the heat radiating units, thereby stabilizing the temperature of detecting elements and maintaining consistent radiation detection characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a cooling fan is used to cool the detecting element, then the structure is simple and easy to construct, but the temperature of the detecting element cannot be sufficiently stabilized due to heat conduction from electrical components and varying wind patterns
Solution Approach 1:
The patent divides the cooling system into multiple independent wind shielding units (first wind shielding unit and second wind shielding unit) that can be separately adjusted. Each unit controls wind flow to specific regions, allowing independent optimization of cooling for different components while maintaining overall system simplicity
Solution Approach 2:
The wind shielding units are made adjustable rather than fixed, allowing the cooling system to adapt to varying gantry rotational speeds and heat generation patterns. This dynamic adjustment capability enables the simple cooling fan structure to achieve stable temperature control under different operating conditions
2Temperature
If wind is applied to cool the detecting element, then cooling is provided, but external wind entering during gantry rotation causes temperature fluctuations and reduces cooling efficiency
Solution Approach 1:
The wind shielding units act as intermediary structures between the cooling fan and the detecting elements. They selectively direct cooling wind to heat radiating units while blocking external wind from reaching the detecting elements, thus mediating the cooling process to achieve both cooling effect and temperature stability
Solution Approach 2:
The patent extracts and isolates the heat radiating units from the detecting elements using wind shielding units. This separation allows the cooling fan to target only the heat radiating units, preventing external wind from affecting the detecting elements while maintaining effective cooling where needed
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
This solution effectively suppresses temperature changes in detecting elements, enhances cooling efficiency, and stabilizes radiation detection characteristics, improving the accuracy and reliability of radiation tomographic imaging.
Implementation Method 1
an air cooling system using a cooling fan has been known. That is, wind is generated by the cooling fan, and the wind is applied to a substrate provided with detecting elements and a radiator disposed on the substrate
Implementation Method 2
a radiator disposed on the substrate
Implementation Method 3
the wind is applied to a substrate provided with detecting elements and a radiator disposed on the substrate
Implementation Method 4
the radiation detection characteristics of a radiation tomographic imaging apparatus depend on the temperature of a detecting element in a radiation detecting apparatus therefor, particularly a photoelectric conversion element
Data Source
AI summary
A radiation detecting apparatus is provided. The radiation detecting apparatus includes a plurality of detector modules arranged in a channel direction, each detector module including a plurality of detecting elements arranged in matrix form in the channel direction and a slice direction, and a heat radiating unit thermally coupled to the detecting elements and provided on an X-ray outgoing side of the detecting elements, a wind blowing unit configured to send wind to the heat radiating units of the detector modules in the slice direction, first wind shielding portions provided on a radiation outgoing side of the heat radiating units and configured to shield the wind in a radiation irradiating direction, and second wind shielding portions provided on a radiation incoming side of the heat radiating units and configured to shield the wind in the radiation irradiating direction.