Detachable Sample Shuttle for Air-Free Microscopy Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current sample transfer systems for charged particle microscopy are bulky, difficult to operate, and require a large antechamber for air-sensitive samples, as they have a permanently attached transfer rod that complicates the transfer process and increases the system's profile.
Innovation Solution
A sample transfer system featuring a detachable transfer rod and shuttle, allowing the sample to be transferred within a vacuum or inert gas environment without exposing it to air, with the shuttle being able to move independently into a glove box without the transfer rod attached, reducing the required antechamber size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a permanently attached transfer rod is used in the sample transfer system, then the sample can be transferred into the vacuum chamber, but the system becomes bulky and requires a large antechamber
Solution Approach 1:
The transfer system is divided into separate components: the transfer shuttle (with shuttle chamber) can be detached from the transfer rod. This allows the shuttle to pass through the vacuum chamber alone, while the transfer rod remains outside, significantly reducing the antechamber volume requirement.
Solution Approach 2:
The transfer rod is extracted from the vacuum chamber environment and kept outside, while only the essential shuttle component enters the vacuum chamber. This separation eliminates the need for a large antechamber to accommodate the entire transfer mechanism.
2Reliability
If a permanently attached transfer rod is used, then the sample transfer function is complete, but the system becomes difficult to operate
Solution Approach 1:
The detachable design allows operators to configure the system differently based on needs: attach the rod when vacuum transfer is needed, detach when only shuttle movement is required. This modular approach simplifies operation by allowing selective use of system components.
3Reliability
If the transfer rod is permanently attached, then the sample carrier can be transferred, but the system profile increases requiring large antechamber
Solution Approach 1:
By segmenting the transfer rod from the shuttle, only the compact shuttle chamber needs to enter the vacuum chamber. The transfer rod remains outside, dramatically reducing the required system profile and antechamber length.
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 system enables efficient and air-free transfer of air-sensitive samples, reducing the overall profile of the transfer system and allowing for smaller antechamber requirements, while maintaining the sample in a controlled environment during transfer.
Implementation Method 1
mechanically coupling a sample carrier holding the sample to a shuttle carrier of a transfer shuttle, wherein the shuttle carrier is locked to a transfer rod
Implementation Method 2
providing vacuum to the sample loader
Implementation Method 3
hermetically sealing the shuttle chamber from the vacuum chamber
Data Source
AI summary
Air sensitive sample may be transferred between charged particle instruments or between charged particle instrument and a glove box using a sample transfer system. The sample transfer system includes a transfer shuttle for receiving a sample carrier and a transfer rod detachable coupled to the transfer shuttle. The transfer rod moves the sample carrier into or out of the transfer shuttle.