X-ray Detector Heating Layer for Temperature Stabilization
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Solution Overview
Problem
Direct-converting X-ray detectors face challenges in maintaining temperature stability due to uneven heating and temperature gradients, which affect energy resolution and counting rate, and existing cooling methods are hindered by components on the sensor board, necessitating a flexible and adaptable heating solution.
Innovation Solution
A detector module with a heating layer containing spatially distributed heating elements and an associated power adaptation unit, allowing for localized and adaptable heating power distribution to counteract temperature gradients and stabilize the sensor layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling body is used for temperature stabilization, then temperature control is improved, but the cooling effectiveness is reduced due to components on the underside of the sensor board blocking thermal coupling
Solution Approach 1:
Instead of cooling the sensor board from the underside (where it is blocked by components), the patent applies heating elements to the front side (incident radiation side) of the sensor board. This inverts the conventional approach of external cooling and uses internal heating to compensate for temperature gradients, thereby avoiding the blocking issue entirely.
Solution Approach 2:
The sensor board itself serves as the heating element by incorporating heating elements directly into its structure. This self-service approach allows the sensor board to actively manage its own temperature distribution without requiring external cooling infrastructure that would be blocked by components.
2Temperature
If heating elements are added to the sensor board, then temperature gradients can be compensated, but the device complexity increases
Solution Approach 1:
The heating elements are merged with the sensor board structure, forming an integrated unit. The sensor board combines multiple functions: radiation detection, thermal management through active heating, and structural support. This merging reduces overall system complexity by eliminating separate cooling mechanisms.
Solution Approach 2:
The sensor board is designed as a multi-functional component that simultaneously performs radiation detection and active temperature management. The same structure that detects X-rays also contains and distributes heating elements, making the sensor board a universal component that handles both detection and thermal control functions.
3Temperature
If the sensor board design is fixed to accommodate cooling bodies, then cooling is improved, but the adaptability to different detector geometries is reduced
Solution Approach 1:
The heating system is designed to be dynamically adaptable to different sensor board geometries and configurations. Rather than fixing the cooling infrastructure to match specific geometries, the heating elements can be configured to match any sensor board layout, making the system dynamic and adaptable to various detector designs.
Solution Approach 2:
The heating system allows for parameter changes in terms of heating element placement, power distribution, and configuration to adapt to different detector geometries. By changing the heating parameters rather than the fundamental cooling structure, the system maintains versatility across different detector designs.
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 provides effective temperature stabilization across the sensor layer, improving energy resolution and counting rate while accommodating various detector geometries and operating conditions, enhancing the reliability of X-ray detectors.
Implementation Method 1
The heating layer has a plurality of heating elements arranged spatially distributed in the heating layer, for heating the sensor layer
Data Source
AI summary
One or more example embodiments of the present invention relates to a detector module for an X-ray detector comprising a sensor layer in a stacked construction configured to convert incident X-ray radiation into electrical signals; a readout layer configured to read out the electrical signals from the sensor layer; and a heating layer, the heating layer including a plurality of heating elements spatially distributed in the heating layer and configured separately from one another for heating the sensor layer, and wherein the readout layer has for each heating element an associated activatable adapting unit via which each heating element is contacted for feeding in power and which is configured to adapt the power fed to each heating element.