Radiation Detector Shield Placement for Compact Full-Area Sensing
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Solution Overview
Problem
Existing radiation detectors face challenges in achieving compactness due to inefficient use of peripheral edge portions of radiation detection elements and vertical space, as shield members are positioned to cover these areas, limiting their effective detection area and increasing size.
Innovation Solution
A radiation detector design where the shield member is in contact with the side surfaces of the radiation detection element and semiconductor element, allowing the entire top surface of the detection element to be utilized, with the shield member's top surface not contacting any other member, thereby enhancing detection area and reducing vertical thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the shield member covers part of the radiation detection element to block radiation, then radiation blocking is improved, but the effective detection area is reduced
Solution Approach 1:
The shield member is repositioned from covering the top surface (vertical dimension) to contacting the side surface (horizontal dimension). This dimensional shift allows the shield to block radiation from the side while the entire top surface remains exposed for detection, resolving the contradiction between radiation blocking and effective detection area.
2Object-affected harmful factors
If the shield member is disposed with a gap from the radiation detection element, then radiation blocking is improved, but the vertical size increases
Solution Approach 1:
The shield member transitions from a vertical arrangement with gaps to a horizontal arrangement contacting the side surface. This eliminates the need for vertical gap space while maintaining radiation blocking effectiveness, thus reducing the overall vertical size of the detector.
3Volume of moving object
If the shield member contacts the top surface of the radiation detection element, then compactness is improved, but radiation detection precision deteriorates
Solution Approach 1:
The contact point of the shield member is moved from the top surface (affecting detection) to the side surface (non-detection area). This allows compact integration without compromising the detection precision of the top surface.
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 configuration enables efficient use of the entire detection area, improving compactness and detection accuracy while reducing production costs and maintaining detection precision.
Implementation Method 1
a shield member that blocks radiation
Data Source
AI summary
In a method for producing a compact radiation detector 1 including a radiation detection element 2 that detects radiation incident on a top surface, and a semiconductor element 3 that is formed larger than the radiation detection element 2 in plan view, is connected to an undersurface of the radiation detection element 2, processes a signal obtained from the radiation detection element 2, and outputs an electrical signal to an outside, the radiation detection element 2 is disposed on a top surface 3a of the semiconductor element 3, and then a shield member 7 that blocks radiation is disposed in contact with a side surface 2a of the radiation detection element 2 and the top surface of the semiconductor element 3, and with a top surface of the shield member 7 out of contact with another member.