Radiation Detection via High-Intensity Pre-Flash Synchronization

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

In radiation detection systems, low-intensity radiation output from portable devices is difficult to discriminate from noise, leading to delayed recognition of radiation start, especially in environments where low radiation exposure is preferred.

Innovation Solution

A radiation detection system where the output device initially emits radiation at a higher intensity than the intended operational intensity, satisfying a threshold condition for the detection device to recognize the start of radiation output, allowing accurate discrimination from noise and enabling timely detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If radiation is output at low intensity to suppress radiation exposure, then radiation exposure is reduced, but radiation becomes difficult to discriminate from noise

Engineering Contradiction:
Improveradiation exposureVSAvoidradiation detection accuracy
Core Design Contradiction:
Object-affected harmful factorsVSMeasurement precision

Solution Approach 1:

The system performs a preliminary radiation output at high intensity (pre-flash) before the actual low-intensity radiation output. This preliminary action creates a strong initial signal that is easily detectable above noise, allowing the detection device to synchronize and prepare for the subsequent low-intensity radiation exposure, thus resolving the contradiction between low radiation exposure and detectability

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If radiation is output at high intensity to improve detection accuracy, then radiation start recognition is accurate, but radiation exposure increases

Engineering Contradiction:
Improveradiation start recognition accuracyVSAvoidradiation exposure
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The radiation output is segmented into two distinct phases: a brief high-intensity pre-flash phase for detection purposes, and a subsequent low-intensity phase for actual imaging. This segmentation allows the system to achieve accurate radiation start recognition during the pre-flash phase while minimizing overall radiation exposure during the main imaging phase

Inventive Principle:
Principle #1Segmentation

3Reliability

If radiation intensity is increased to satisfy detection threshold, then detection reliability improves, but energy consumption increases

Engineering Contradiction:
Improvedetection reliabilityVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system employs periodic action by implementing a brief high-intensity pre-flash followed by low-intensity radiation output. The high-intensity phase occurs periodically only when needed for synchronization and detection threshold satisfaction, while the majority of the radiation output occurs at low intensity, thus maintaining detection reliability while minimizing overall energy consumption

Inventive Principle:
Principle #19Periodic action

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 approach allows for precise and timely recognition of radiation start, reducing noise interference and ensuring accurate detection, even in low-intensity scenarios, thereby enhancing the system's ability to detect radiation output effectively.

Implementation Method 1

a radiation generation unit that generates radiation

Methodology Applied
Scientific EffectElectromagnetic radiation generation: Electromagnetic Induction

Implementation Method 2

a radiographic image detector such as an FPD (Flat Panel Detector) that detects radiation output from the radiation output device and transmitted through a patient

Methodology Applied
Scientific EffectRadiation detection: Photoelectric Effect

Data Source

PatentUS11125892B2Radiation detection system, radiation output device, and radiation detection device
Publication Date: 2021.09.21 FUJIFILM CORP
  • US11125892B2 patent drawing
  • US11125892B2 patent drawing
  • US11125892B2 patent drawing

AI summary

The present disclosure provides a radiation detection system, a radiation output device, and a radiation detection device. The radiation detection system includes a radiation output device having an output control unit, and a radiation detection device having a recognition unit that recognizes whether radiation has been output from the radiation output device on the basis of a radiation detection signal. The output control unit causes radiation to be output at a first intensity from a time point of the start of outputting of radiation, and then causes the radiation to be output at a second intensity. The first intensity is an intensity higher than the second intensity and satisfying a threshold value condition set in advance in the recognition unit. The recognition unit recognizes that a detection signal of the radiation with the first intensity satisfies the threshold value condition, thereby recognizing the start of outputting of the radiation.