Radiation Detector Transmitting Part Capacitance Noise

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Solution Overview

Problem

Current radiation detectors face challenges in achieving high sensitivity while maintaining stable and noise-suppressed detection, particularly as the surface area of the detecting part is increased, leading to increased noise in the detection signal.

Innovation Solution

The radiation detector incorporates a transmitting part with a first conductive layer, a second conductive layer, and an organic layer, where at least a portion of the organic layer is between the first and second conductive layers, allowing for increased surface area of the detecting part without increasing noise, by forming a second capacitance with reduced electrical capacitance, thereby enhancing detection sensitivity and suppressing noise.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the surface area of the detecting part is increased to enhance detection sensitivity, then the detection sensitivity is improved, but the noise in the detection signal increases

Engineering Contradiction:
Improvedetection sensitivityVSAvoidnoise in detection signal
Core Design Contradiction:
Measurement precisionVSObject-generated harmful factors

Solution Approach 1:

The patent divides the detector into two distinct functional parts: a detecting part for capturing radiation signals and a transmitting part for signal transmission. The transmitting part includes first and second conductive layers separated by an organic layer, forming a capacitor structure that is electrically connected to the detecting part. This segmentation allows the detecting part to be optimized for sensitivity while the transmitting part manages noise through its capacitive structure, thereby resolving the contradiction between increased detection area and noise suppression.

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If the surface area of the detecting part is increased to improve detection sensitivity, then the detection sensitivity is improved, but the electrical capacitance increases leading to signal degradation

Engineering Contradiction:
Improvedetection sensitivityVSAvoidsignal stability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The organic layer acts as an intermediary dielectric material between the first and second conductive layers in the transmitting part. This intermediary structure forms a capacitor that electrically connects the detecting part to the external circuit while providing electrical isolation. The capacitive structure managed through this intermediary layer allows the detector to maintain low electrical capacitance even when the detecting part surface area is increased, thus preserving signal stability while improving detection sensitivity.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 enables a radiation detector with increased sensitivity and reduced noise, even when the surface area of the detecting part is increased, by effectively managing the electrical capacitance and resistance differences between the conductive layers, resulting in a stable and highly sensitive detection system.

Implementation Method 1

a transmitting part including a first conductive layer electrically connected with the detecting part, a second conductive layer separated from the first conductive layer, and an organic layer, of which at least a portion is between the first conductive layer and the second conductive layer

Methodology Applied
Scientific EffectCapacitance: Capacitance

Data Source

PatentUS11968849B2Radiation detector
Publication Date: 2024.04.23 KK TOSHIBA
  • US11968849B2 patent drawing
  • US11968849B2 patent drawing
  • US11968849B2 patent drawing

AI summary

According to one embodiment, a radiation detector includes a detecting part, and a transmitting part. The detecting part is configured to output a signal. The signal corresponds to radiation incident on the detecting part. The transmitting part includes a first conductive layer, a second conductive layer, and an organic layer. The first conductive layer is electrically connected with the detecting part, and is configured to transmit the signal. The second conductive layer is separated from the first conductive layer. At least a portion of the organic layer is between the first conductive layer and the second conductive layer.