Radiation Imaging Apparatus X-ray Exposure Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing radiation imaging apparatuses face challenges in reducing X-ray exposure dose and improving operability during positioning operations, as the image on the monitor moves with operator positioning, leading to inefficient radioscopical viewing and imaging processes.
Innovation Solution
A radiation imaging apparatus equipped with a radiation generation unit, detection unit, irradiation size detection unit, and control unit that resumes radiation irradiation based on detected movement and irradiation range, allowing precise control of X-ray exposure and image alignment on the monitor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operator continuously performs positioning operations while the image is displayed on the monitor, then the image alignment is maintained, but the X-ray exposure dose is increased
Solution Approach 1:
The system alternates between periodic X-ray irradiation and non-irradiation periods. During positioning operations, the control unit stops irradiation when movement is detected and resumes irradiation only when the imaging target region is confirmed to be properly positioned, creating a periodic action pattern that reduces unnecessary exposure while maintaining operational continuity
Solution Approach 2:
The system uses movement detection units to provide real-time feedback on the position of the imaging target region. This feedback information is processed by the control unit to determine when to resume irradiation, ensuring that X-rays are only exposed when necessary for proper positioning, thus reducing overall exposure dose while maintaining ease of operation
2Object-affected harmful factors
If the X-ray irradiation is stopped during positioning operations, then the X-ray exposure dose is reduced, but the image alignment may be affected
Solution Approach 1:
The control unit continuously monitors movement of the imaging target region through movement detection units. When movement is detected and the region is repositioned, the control unit receives feedback and automatically resumes irradiation to maintain image alignment, ensuring precision is not compromised by temporary irradiation stops
Solution Approach 2:
The system performs preliminary positioning operations without irradiation to establish the correct position of the imaging target region. Once positioning is confirmed through movement detection, irradiation is resumed to capture the image, ensuring that alignment precision is maintained while reducing overall exposure dose through preliminary non-exposure positioning
3Object-affected harmful factors
If the operator performs positioning operations without continuous irradiation, then the X-ray exposure dose is reduced, but the operability during positioning is deteriorated
Solution Approach 1:
The system provides self-service functionality where the control unit automatically manages the irradiation based on movement detection feedback. The operator can perform positioning operations without continuously controlling irradiation, as the system self-regulates by stopping irradiation during movement and automatically resuming it when positioning is complete, thus reducing exposure dose while maintaining ease of operation
Solution Approach 2:
The movement detection units provide continuous feedback to the control unit about the position status of the imaging target region. This feedback enables the system to automatically resume irradiation when positioning is complete, ensuring that the operator experiences continuous operational flow without manual irradiation control, thus maintaining ease of operation while reducing exposure dose
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 solution enhances operability by optimizing X-ray irradiation timing and reducing the X-ray exposure dose during positioning, enabling more efficient radioscopical viewing and imaging while maintaining image alignment on the monitor.
Implementation Method 1
a radiation generation unit configured to radiate radiation to an object
Implementation Method 2
a radiation detection unit configured to detect the radiation having passed through the object
Data Source
AI summary
A radiation imaging apparatus includes a radiation generation unit configured to radiate radiation to an object, a radiation detection unit configured to detect the radiation having passed through the object, an irradiation size detection unit configured to detect a size of an irradiation range of the radiation radiated by the radiation generation unit, a movement detection unit configured to detect a relative movement of the radiation generation unit and the radiation detection unit with respect to the object, and a control unit configured to control irradiation of the radiation to the object performed by the radiation generation unit. The control unit resumes, after a stop of the irradiation of the radiation, the irradiation of the radiation to the object performed by the radiation generation unit according to the relative movement detected by the movement detection unit and the size of the irradiation range detected by the irradiation size detection unit.