Transmission Imaging Device With Individualized Detector Timing
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Solution Overview
Problem
Conventional transmission imaging using pulsed radiation is limited in producing high-quality images due to the use of uniform control for all radiation detectors, leading to distortions and loss of quality caused by varying transit times and scattered radiation components across detectors.
Innovation Solution
A transmission imaging device and method where each radiation detector is controlled with individual detection start and end times, allowing for different measurement windows based on its distance from the radiation source, ensuring accurate detection of both unscattered and scattered radiation components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the same measurement time window is used for all radiation detectors, then the control system is simple and uniform, but image quality deteriorates due to distortions and loss of quality caused by varying transit times
Solution Approach 1:
The patent applies local quality by assigning individualized measurement time windows to each radiation detector based on its specific distance from the radiation source. Detectors closer to the source receive shorter measurement windows, while detectors farther away receive longer measurement windows, optimizing each detector's operation according to its local characteristics rather than applying a uniform control approach.
2Area of stationary object
If detectors are positioned at different distances from the radiation source, then the detector array can capture a broader field of view, but scattered radiation components vary across detectors leading to image distortions
Solution Approach 1:
The patent addresses scattered radiation variability by configuring each detector's measurement time window according to its specific position and distance from the radiation source. This local optimization ensures that each detector captures radiation data with appropriate temporal characteristics for its location, compensating for variations in scattered radiation components across the detector array.
Solution Approach 2:
The patent applies preliminary action by pre-calculating and pre-configuring the measurement time windows for all detectors before the actual imaging process. The control system determines the optimal measurement window for each detector based on its known position and distance from the source, preparing the detection parameters in advance to minimize scattered radiation effects during image acquisition.
3Ease of operation
If a single detection end time is used for all detectors, then the detection process is synchronized and simple, but detectors at different distances experience varying propagation times causing partial detection of radiation pulses
Solution Approach 1:
The patent resolves the detection completeness issue by implementing local quality through detector-specific measurement time windows. Each detector's measurement window is individually configured based on its distance from the radiation source, ensuring that the measurement window duration is appropriate for the propagation time required for radiation to reach that specific detector, thereby achieving complete detection for all detectors.
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 reduces image distortions and enhances imaging quality by synchronizing detector activation with the radiation source, effectively accounting for varying transit times and minimizing scattered radiation components, resulting in improved image clarity and contrast.
Implementation Method 1
a radiation source for emitting pulses of electromagnetic radiation
Implementation Method 2
The radiation passing through the object under examination and attenuated by it is detected by radiation detectors
Implementation Method 3
The radiation used for irradiation can be scattered one or more times in the object under investigation while changing direction
Implementation Method 4
a detector array to detect the radiation modified by the examination object
Data Source
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AI summary
The invention relates to a transmission imaging device and method for imaging the interior of an object under investigation, wherein the object under investigation is penetrated by pulses of electromagnetic radiation from a radiation source position and the radiation passing through the object under investigation is detected by way of a detector arrangement having a plurality of detectors, wherein, for each of the detectors, the radiation detection is started alternately at predefined detection start times and ended at predefined detection end times, and wherein at least some of the detectors have different detection end times.