Synchronous X-ray Generator and Detector Motion for Imaging Clarity

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Solution Overview

Problem

Conventional human body inspection methods, such as metal detectors and X-ray imaging, are inefficient and unable to accurately detect non-metallic weapons and explosives, and suffer from poor image quality due to movement during scanning.

Innovation Solution

A radiation device with a synchronously moving X-ray generator and detector system, utilizing flexible steel belts and a driving device to maintain a predetermined distance, allowing for sector planar beam radiation and improved image quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional X-ray imaging method is used with stationary generator and detector, then the equipment structure is simple, but the image quality deteriorates due to movement during scanning

Engineering Contradiction:
Improveimage qualityVSAvoidequipment structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent transforms the stationary X-ray generator and detector into a movable system. Both components are mounted on flexible steel belts that allow them to move vertically in sync with the inspected person, enabling dynamic imaging without relative movement between components and the subject, thereby improving image quality while maintaining manageable system complexity through coordinated motion

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent combines the motion control of the X-ray generator and detector into a unified system. Both components are suspended by flexible steel belts and driven by the same driving device, ensuring they move together as an integrated unit. This merging of motion control eliminates relative displacement between generator and detector, maintaining imaging precision while simplifying the control system

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If metal detectors are used for human body inspection, then the device complexity is low, but the detection capability deteriorates as it cannot detect non-metallic weapons and explosives

Engineering Contradiction:
Improvedetection capabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical metal detection system with an X-ray imaging system. Instead of using electromagnetic induction principles for metal detection, the system uses X-ray radiation and detection to create images that can reveal both metallic and non-metallic objects. This substitution dramatically expands detection capability to include plastic explosives, ceramics, and other non-conductive materials while the generated images provide location and shape information

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the detection parameter from electrical conductivity (metal detection) to X-ray attenuation (imaging). By using X-ray radiation with specific energy levels and detection parameters, the system can differentiate between various materials based on their density and atomic number, enabling detection of non-metallic weapons and explosives that have different X-ray absorption characteristics

Inventive Principle:
Principle #35Parameter changes

3Manufacturing precision

If the X-ray generator and detector move with the inspected person, then the image quality improves, but the device complexity increases due to synchronous movement requirement

Engineering Contradiction:
Improveimage definitionVSAvoidsynchronous movement control
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent makes both the X-ray generator and detector dynamic components that move with the inspected person. By mounting both components on flexible steel belts and driving them with the same mechanism, they dynamically adjust their positions to maintain optimal imaging geometry throughout the inspection process, ensuring high image definition regardless of the person's movement

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent creates an equipotential motion system where the X-ray generator and detector move together at the same speed and maintain constant relative positioning. The flexible steel belts and unified driving device ensure both components experience the same motion conditions, eliminating differential movement that would compromise image quality while keeping the control system relatively simple

Inventive Principle:
Principle #12Equipotentiality

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

Enables efficient and high-quality radiation imaging during human body inspection, reducing noise and cost while allowing individuals to remain still, thereby enhancing inspection efficiency and image clarity.

Implementation Method 1

a X-ray generator for radiating the radiation

Methodology Applied
Scientific EffectX-ray radiation: X-Ray

Data Source

PatentUS7703979B2Radiation device for human body inspection
Publication Date: 2010.04.27 NUCTECH CO LTD
  • US7703979B2 patent drawing
  • US7703979B2 patent drawing
  • US7703979B2 patent drawing

AI summary

Disclosed is a radiation device for the human body inspection. The device includes a X-ray generator for radiating radiation; a detector for receiving the radiation radiated from the X-ray generator; a first flexible member connected with the X-ray generator for hoisting the X-ray generator; a second flexible member connected with the detector for hosing the detector; and a driving device for synchronically driving the X-ray generator and the detector through the first and second flexible members, and at the same time, the X-ray generator and the detector are spaced from each other a predetermined distance in a horizontal direction. The radiation device for the human body inspection according to the present invention can ensure that the radiation source and the detector can be operated synchronically during the whole inspection process; thereby the quality of radiation imaging is increased. Furthermore, the radiation device for the human body inspection according to the present invention is allowed to save cost and reduce noise.