Removable Shielded Inner Cell for Radioactive Material Handling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing radioactive material handling installations require extensive decontamination and generate significant waste due to cross-contamination issues, leading to inefficient operation and the need for multiple facilities, which limits their capability to handle multiple materials quickly.
Innovation Solution
A radioactive material handling assembly with removable inner cells made of shielding material, allowing for separate containment and handling of different materials without decontamination between uses, featuring flexible attachment means, control rods, and efficient access and ventilation systems to maintain containment integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single handling chamber is used for multiple radioactive materials, then facility complexity is reduced, but cross-contamination occurs requiring extensive decontamination
Solution Approach 1:
The handling system is segmented into removable inner cells that can be individually exchanged. Each inner cell contains the radioactive material and can be completely removed from the outer housing, allowing the next material to be loaded without decontaminating the entire facility. This segmentation resolves the contradiction by enabling quick material changes while maintaining low facility complexity.
Solution Approach 2:
The radioactive material is extracted into a separate removable inner cell that can be taken out of the outer housing. This extraction allows the material to be changed without contaminating the permanent facility structure, thus eliminating decontamination requirements while keeping the facility design simple.
2Reliability
If multiple handling chambers are used for different radioactive materials, then cross-contamination is prevented, but facility complexity and infrastructure multiplication increase
Solution Approach 1:
Instead of building multiple separate facilities, the system segments the handling function into removable inner cells. Each cell can be dedicated to a specific material, but all cells share the same outer housing and infrastructure. This provides cross-contamination prevention through physical separation while avoiding facility multiplication.
Solution Approach 2:
The outer housing serves multiple functions: it provides radiation shielding, structural support, and operational controls for all materials. By making the housing universal and the inner cells interchangeable, the system achieves reliable cross-contamination prevention without requiring separate facilities for each material type.
3Reliability
If extensive decontamination procedures are implemented, then cross-contamination is reduced, but operational time and productivity are reduced
Solution Approach 1:
The radioactive material is extracted into removable inner cells that can be completely removed from the housing. This extraction eliminates the need for decontamination procedures entirely, as the next material is loaded into a fresh cell. This resolves the contradiction by achieving complete cross-contamination prevention while maintaining high operational efficiency.
Solution Approach 2:
The inner cells function as disposable or single-use containment units. Each cell is used for one material type and then removed, replaced by a new cell for the next material. This approach eliminates decontamination costs and time while ensuring complete cross-contamination prevention, significantly improving productivity.
4Speed
If removable inner cells are implemented, then material switching speed is improved, but device complexity increases
Solution Approach 1:
The system is segmented into modular inner cells with standardized interfaces that fit into the outer housing. This segmentation enables rapid cell exchange while keeping the overall assembly relatively simple through standardization. The modular design resolves the contradiction by enabling fast material switching without excessive complexity.
Solution Approach 2:
The inner cell is nested within the outer housing, with the cell containing the radioactive material and the housing providing shielding and controls. This nesting arrangement allows the cell to be quickly inserted and removed while maintaining a compact overall structure. The nested design achieves fast material switching without significantly increasing device complexity.
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
Enables rapid switching between handling different radioactive materials, reducing decontamination time, minimizing waste, and allowing a single facility to manage various materials without cross-contamination, thus enhancing operational efficiency and versatility.
Implementation Method 1
at least one of the outer housing and the inner cell is predominantly of a shielding material which is opaque to radioactivity
Data Source
AI summary
A radioactive material handling assembly (10) includes an outer housing (12) and an inner cell (14). The inner cell defines a radioactive material containment/handling chamber (16) and is removably mountable inside the outer housing. Handling means is operable from outside the inner cell to handle radioactive materials located in the containment/handling chamber. At least one of the outer housing and the inner cell is predominantly of a shielding material which is opaque to radioactivity.