Tilted Radiation Detector Array for X-Ray Collection
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Solution Overview
Problem
Conventional X-ray detector devices are limited in collecting radiation due to geometric constraints, leading to reduced efficiency and prolonged measurement times, and have complex structures that increase costs.
Innovation Solution
A radiation detection device with tilted radiation-sensitive elements arranged around a hollow guide element, optimizing the solid angle collection and reducing the need for complex wire-bonding connections by using a monolithic array of silicon drift detectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the detector device is brought closer to the sample to increase the solid angle, then the radiation collection efficiency is improved, but the detector device obstructs the X-ray beam
Solution Approach 1:
The detector device is divided into multiple independent detector modules arranged in a circular array around the sample. Each module can be independently positioned and angled to optimize radiation collection without obstructing the incident X-ray beam, resolving the contradiction between collection efficiency and beam obstruction.
Solution Approach 2:
The detector modules are arranged in a three-dimensional circular array around the sample rather than in a single plane. This spatial distribution in multiple dimensions allows each detector to collect radiation from different angular positions simultaneously, maximizing the solid angle without any single detector blocking the incident beam path.
2Device complexity
If conventional planar detector arrangements are used, then the structure is simple, but only a small part of the solid emission angle is collected
Solution Approach 1:
The detector modules are arranged in a circular (curved) array around the sample instead of a flat planar configuration. This curved arrangement allows the detectors to encompass a much larger solid angle of the sample's emission, capturing radiation from all directions around the sample while maintaining a relatively simple modular structure.
3Measurement precision
If more detector elements are added to increase collection efficiency, then the radiation gathering capacity is improved, but the device complexity and cost increase
Solution Approach 1:
Multiple identical detector modules are used in the circular array, each performing the same detection function. This modular universal design allows the system to achieve high radiation gathering capacity through repetition of simple, standardized units rather than through complex unique structures, reducing overall system complexity while increasing capability.
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 device maximizes radiation collection efficiency and uniformity, allowing all elements to operate at maximum capacity, reducing measurement times and production costs.
Implementation Method 1
a hollow guide element (40) having an inlet opening (42) and an outlet opening (44) and able to guide an excitation beam (F) along a propagation axis oriented from the inlet opening (42) to the outlet opening (44)
Implementation Method 2
techniques for measuring X-rays emitted by a sample irradiated by radiation generated by an excitatory source, such as X-ray fluorescence spectroscopy
Data Source
AI summary
A detector device of radiation emitted by a sample irradiated with an excitation beam. The detector device includes a hollow guide element having an inlet opening and an outlet opening, and is able to guide the excitation beam along a propagation axis oriented from the inlet opening to the outlet opening; and a plurality of radiation-sensitive elements, which are arranged around the hollow guide element. The sensitive elements each have an active surface, which is tilted with respect to a plane orthogonal to the axis of propagation of the excitation beam and faces the outlet opening of the hollow guide element.