X-ray Detector Module Lateral Voltage Routing
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Solution Overview
Problem
Existing x-ray detector modules with direct-converting semiconductor layers face limitations in scalability and replaceability due to the need for parallel voltage supply lines, which restrict the number of sensor boards that can be integrated and maintained without damaging the module.
Innovation Solution
A detector module design where each sensor board has a separate voltage supply line running along its lateral surface, allowing for increased integration of sensor boards while maintaining replaceability and precise adjustment of detector geometry, with a bias voltage applied to the sensor surface for x-ray radiation detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If parallel voltage supply lines are used to provide bias voltage to sensor boards, then voltage supply is achieved, but the number of integrable sensor boards is limited and replaceability is compromised
Solution Approach 1:
The voltage supply system is segmented into individual supply lines for each sensor board, with each line running separately along the lateral surface of the stack formation. This allows each sensor board to be independently voltage-supplied and replaced without affecting others, resolving the contradiction between quantity and replaceability.
Solution Approach 2:
The voltage supply lines are routed along the lateral surface (side dimension) of the stack formation rather than through the top surface, creating a new spatial dimension for voltage distribution. This enables multiple independent voltage supplies without interfering with sensor board replaceability.
2Adaptability or versatility
If more sensor boards are integrated to increase detector size, then detector geometry adjustment is improved, but complexity of voltage supply increases
Solution Approach 1:
The voltage supply is segmented into modular individual lines, each serving one sensor board. This modular approach allows easy scaling to accommodate different detector geometries without proportionally increasing overall system complexity.
Solution Approach 2:
The lateral surface routing method serves as a universal voltage supply approach that works for any number of sensor boards. This multi-functional design pattern allows the same voltage supply architecture to adapt to various detector geometries and scales.
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 design enables a higher number of sensor boards to be integrated into a detector module, allowing for precise adjustment of detector geometry and individual board replacement without affecting other boards, enhancing the detector's performance and reliability.
Implementation Method 1
During the incidence of x-ray radiation, electron-hole-pairs, in other words pairs made up of negative and positive charge carriers, are generated in the sensor layer
Implementation Method 2
On account of a voltage applied to the sensor layer or to the surface of the sensor layer, subsequently also referred to as bias voltage, the charger carriers are separated and move toward the respective oppositely charged electrodes
Data Source
AI summary
A detector module for an x-ray detector is disclosed. In an embodiment, the detector module includes a plurality of sensor boards arranged adjacent to one another on a module carrier. Each sensor board is arranged in a stack formation and includes a sensor layer with a sensor surface, to which a bias voltage can be applied in order to detect x-ray radiation. A voltage supply line is arranged in the stack formation along a lateral surface of the stack formation of each sensor board in order to apply the bias voltage. Moreover, an x-ray detector is disclosed for recording an image of an object irradiated by x-ray radiation, the x-ray detector including a plurality a number of detector modules arranged adjacent to one another.