Adjustable Slit Plates for Radiation Detection
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Solution Overview
Problem
Existing radiation detection systems have limited efficiency in imaging objects with varying dimensions, particularly in radioactive detection, where minimizing radiation exposure is crucial and high resolution is not always necessary.
Innovation Solution
The system employs adjustable slit plates with moveable slits and framing devices to adjust sensitivity and magnification, allowing for various 'zoom' settings and improved angular information capture, enabling efficient detection of objects with different dimensions while minimizing radiation exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed slit configuration is used, then the device structure is simple, but the detection efficiency and flexibility for objects of different dimensions are limited
Solution Approach 1:
The patent implements movable slit plates with adjustable positions and orientations. The first and second slit plates can be displaced along the radiation path and rotated around the radiation source, transforming the fixed configuration into a dynamic system that adapts to different object dimensions and detection requirements.
Solution Approach 2:
The adjustable slit configuration allows a single device to perform multiple detection functions for various object sizes and types. By modifying slit positions, orientations, and openings, the same apparatus can optimize detection efficiency for small animals, human patients, or different anatomical regions without requiring multiple specialized devices.
2Measurement precision
If high resolution imaging is prioritized, then image quality improves, but radiation exposure increases and measuring time extends
Solution Approach 1:
The system allows dynamic adjustment of slit parameters (position, orientation, opening size) to optimize the balance between resolution and measurement speed. For routine detections, slits can be configured for faster acquisition with acceptable resolution, while high-resolution modes can be activated only when clinically necessary, reducing overall radiation exposure and measurement time.
3Reliability
If slit width is increased to improve sensitivity, then detection sensitivity increases, but image resolution deteriorates
Solution Approach 1:
The movable slit plates enable dynamic adjustment of slit width and configuration. The system can adaptively select optimal slit openings based on detection requirements - wider slits for sensitivity-critical applications and narrower slits for resolution-critical applications - rather than being constrained to fixed dimensions.
Solution Approach 2:
The patent employs asymmetric slit configurations where the first and second slit plates have different orientations and positions. This asymmetric arrangement creates optimized detection geometries that can simultaneously achieve good sensitivity and resolution by controlling the angular distribution of radiation passing through the slits.
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 enhances the detection system's flexibility and efficiency, allowing for faster measurements with better noise reduction and more accurate isotope distribution reconstruction, while maintaining low radiation exposure.
Implementation Method 1
a detector plate (40) that is sensitive to radiation
Implementation Method 2
the first and second slits together define a pinhole passage
Data Source
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AI summary
The invention provides a radiation detection system, comprising a detector plate that is sensitive to radiation, and an imaging system that is arranged to form an image of an object to be examined on the detector plate and that comprises a first slit plate with at least a first slit, and a second slit plate that is positioned between the first slit plate and the detector plate and with a second slit that makes a non-zero angle with the first slit, wherein the first and second slit together define a pinhole passage, wherein at least one of the at least one first and second slits may be changed in least one of its width or its position with respect to at least one of the other of the at least one first and second slits and the detector plate. With the radiation detection device according to the invention, it is achieved that many more settings of the device become possible for examination with radiation.