Radiation Detector With Through Hole Electrode
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Solution Overview
Problem
Conventional radiation detectors with semiconductor elements are limited in efficiency due to the absence of an electrode for applying voltage near the hole through which radiation passes, resulting in reduced detection of radiation entering that area.
Innovation Solution
A radiation detector with a plate-like semiconductor part having a through hole, where one surface serves as an incident surface, and electrodes are arranged to cover the inner edge and inner surface of the hole, enabling detection of radiation that enters the sensitive portion, including the inner edge and inner surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a through hole is provided in the plate-like radiation detector to place it closer to the sample, then the efficiency of detecting radiation is enhanced, but the portion near the hole cannot detect radiation effectively due to absence of voltage-applying electrode
Solution Approach 1:
The patent applies local quality by providing a voltage-applying electrode specifically at the portion near the through hole where radiation detection is needed. This localized electrode configuration enables the previously non-functional area to detect radiation effectively, resolving the contradiction between enhanced detection efficiency and reliable detection capability near the hole.
Solution Approach 2:
The radiation detector is segmented into multiple electrode regions, with specific voltage-applying electrodes positioned at critical locations including near the through hole. This segmentation allows different portions of the detector to be optimized for their specific functions, particularly enabling radiation detection in the hole-proximity area while maintaining overall detection efficiency.
2Productivity
If electrodes are arranged to cover the inner edge and inner surface of the hole, then the detection rate of radiation is increased, but the device complexity increases
Solution Approach 1:
The voltage-applying electrode near the through hole serves multiple functions: it enables radiation detection in the hole-proximity area, maintains electric field continuity across the detector surface, and contributes to overall detection efficiency. This multi-functionality increases detection rate while minimizing the added complexity compared to dedicated single-function electrodes.
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 increases the detection rate of radiation, enhancing the efficiency of radiation detection and reducing the time required for detecting characteristic or fluorescent X-rays from a sample.
Implementation Method 1
Some radiation detectors for detecting radiation such as X-rays use semiconductor elements to detect radiation
Data Source
AI summary
Provided are a radiation detector and a radiation detection apparatus in which the efficiency of detecting radiation is enhanced by increasing a portion capable of detecting radiation. A radiation detector includes a semiconductor part having a plate-like shape, the semiconductor part being provided with a through hole penetrating the semiconductor part, one surface of the semiconductor part being an incident surface for radiation. The semiconductor part has a sensitive portion capable of detecting incident radiation, the sensitive portion including an inner edge of the incident surface.