Radiation Detection Panel Thermal Isolation via Heat Insulation Member
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Solution Overview
Problem
Conventional X-ray detection apparatuses face issues with thermal influence on the radiation detection panel due to heat conduction from the circuit board, leading to increased operation temperatures, dark current, and image unevenness, which are not effectively addressed by existing cooling methods like Peltier elements or cold-water circulation devices.
Innovation Solution
The implementation of a heat insulation member between the X-ray detection panel and the circuit board, combined with a heat conduction member that directs heat to the housing for dissipation, reduces thermal conduction to the panel and employs a thermoplastic resin member to isolate air circulation between spaces, thereby minimizing temperature fluctuations and image unevenness without the need for a cooling device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling device such as a Peltier element or cold-water circulation device is used to cool the circuit board, then the temperature of the circuit board is reduced, but the device complexity increases due to the need for extra cooling systems and control mechanisms
Solution Approach 1:
The patent extracts the harmful thermal conduction path by introducing a heat insulation member between the circuit board and the X-ray detection panel. This isolates the panel from the heat generated by the circuit board, eliminating the need for active cooling devices and their associated control systems.
Solution Approach 2:
The heat insulation member acts as an intermediary element placed between the circuit board and the X-ray detection panel. This mediator blocks the thermal conduction path while allowing the two components to remain in their respective positions, providing thermal isolation without requiring complex cooling mechanisms.
2Reliability
If the X-ray detection apparatus is energized 24 hours before use to make uniform the leak current variation, then the leak current uniformity is improved, but the loss of time increases due to the extended warm-up period required
Solution Approach 1:
The patent applies preliminary thermal isolation through the heat insulation member before operation begins. By preventing heat conduction to the panel from the start, the apparatus achieves stable operating conditions immediately without requiring a prolonged warm-up period to stabilize leak currents.
Solution Approach 2:
The heat insulation member provides a simple, passive, and maintenance-free solution compared to active cooling systems. This inexpensive thermal barrier component continuously prevents heat conduction without requiring energy input, control systems, or regular maintenance, enabling immediate stable operation.
3Temperature
If the heat insulation member is disposed with gaps between it and the thermal diffusion plate and holding plate, then the heat insulation performance is improved, but the manufacturing precision requirements increase due to the need for precise gap maintenance
Solution Approach 1:
The patent employs a flexible heat insulation member that can elastically deform to fill and adapt to the gap spaces between rigid components. This flexibility allows the insulation member to maintain effective thermal isolation without requiring precisely controlled gap dimensions, thereby reducing manufacturing precision requirements while preserving heat insulation performance.
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 configuration maintains a stable temperature of the X-ray detection panel, suppresses dark current and leak current fluctuations, and enhances image quality by reducing thermal noise, allowing for prolonged continuous irradiation periods and accurate image correction.
Implementation Method 1
a heat insulation member which reduces conduction of heat from the circuit board group to the X-ray detection panel
Implementation Method 2
a heat conduction member which conducts the heat from the circuit board group to the housing
Implementation Method 3
a thermoplastic resin member which isolates air circulation between the first space and the second space
Data Source
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AI summary
A radiation detection apparatus includes a radiation detection panel configured to detect a radiation, a support member (13) that is configured to support the radiation detection panel on one surface thereof and has electrical conductive property, a circuit board that is supported on the other surface of the support member and configured to drive the radiation detection panel, a flexible circuit board (15) configured to electrically connect the radiation detection panel to the circuit board, a heat insulation member (16) arranged between the radiation detection panel and the circuit board, a housing (46) that is configured to accommodate the radiation detection panel, the circuit board, the support member, and the heat insulation member and has electrical conductive property, and a heat conduction member that is accommodated in the housing, connected to the support member and the housing, and configured to achieve electrical conduction between the support member and the housing to conduct heat of the support member to the housing.