Radiation Imaging Sensor Mounting with Shielded Board Fixation
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Solution Overview
Problem
Existing radiation imaging apparatuses face issues with insufficient mechanical strength and radiation shielding, particularly due to inadequate fixation of the electric circuit board and radiation detection sensor, leading to potential malfunctions and breakage.
Innovation Solution
A radiation imaging apparatus design that includes a first base supporting the electric circuit board with a first fixing portion inside the outer periphery of a radiation shielding member, and a second base supporting the radiation detection sensor, fixed via a second fixing portion, ensuring both high radiation shielding and mechanical strength through integrated fixation to the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a radiation shielding member is provided between the radiation detection sensor and the electric circuit board, then the radiation shielding property is secured, but the electric circuit board is not sufficiently fixed to the housing and the mechanical strength deteriorates
Solution Approach 1:
The support structure is divided into multiple segments: a first support portion that contacts the housing, a second support portion that contacts the electric circuit board, and a connection portion linking them. This segmentation allows each part to perform its specific function - the first support portion provides anchoring to the housing for mechanical strength, while the second support portion provides radiation shielding to the circuit board, resolving the contradiction between shielding and fixation.
2Object-affected harmful factors
If the electric circuit board is spaced apart from the housing, then the radiation shielding member can be positioned, but the sensor support base is not sufficiently fixed and impact resistance deteriorates
Solution Approach 1:
A support base acts as an intermediary component between the housing and the electric circuit board. The support base includes a first support portion that contacts and is fixed to the housing, providing mechanical anchoring and impact resistance. The connection portion links to the electric circuit board, maintaining the necessary spacing for radiation shielding while ensuring the circuit board is firmly supported, thus resolving the contradiction between shielding positioning and impact resistance.
3Strength
If a mounting plate is directly provided at the end portion of the electric circuit board, then the electric circuit board can be fixed, but the configuration is not suitable for apparatus including a support base and the support base cannot be stably held
Solution Approach 1:
The support base is segmented into a first support portion for housing contact, a connection portion for circuit board contact, and a second support portion extending toward the radiation detection sensor. This segmentation allows the support base to integrate multiple functions: providing fixation strength through the first support portion, maintaining configuration compatibility by adapting to both housing and circuit board geometries, and ensuring stable holding of the circuit board through the connection portion, eliminating the need for a separate mounting plate.
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
The design achieves stable fixation of the circuit board and sensor, providing enhanced mechanical strength and radiation shielding, preventing malfunctions and breakage, while maintaining the functionality of integrated circuits.
Implementation Method 1
a radiation shielding member located between the radiation detection sensor and the electric circuit board
Data Source
AI summary
A radiation imaging apparatus includes a radiation detection sensor configured to detect radiation, an electric circuit board, a first base including a radiation shielding member located between the radiation detection sensor and the electric circuit board, the first base being configured to support the electric circuit board, a housing containing the radiation detection sensor, the electric circuit board, and the first base in an internal space of the housing, and a first fixing portion configured to fix the first base to a back surface of the housing so that the electric circuit board faces the back surface of the housing with a gap in the internal space, wherein the first fixing portion is located in an area inside an outer periphery of the radiation shielding member in a planar view along a radiation incident direction.