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An ultra-high-vacuum rotating sample manipulator with cryogenic cooling.

X Y Tee¹, A Paré¹, A P Petrović¹

¹Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore.

The Review of Scientific Instruments

|December 2, 2020

Summary

A new cryogenic rotating sample manipulator was developed for ultra-high vacuum environments. This apparatus enables continuous sample rotation at regulated cryogenic temperatures, ideal for advanced material research and cryogenic sputtering applications.

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Optimizing Sample Preparation for Cryogenic Electron Microscopy

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Published on: April 11, 2025

Area of Science:

Materials Science
Vacuum Technology
Cryogenics

Background:

Achieving precise control over sample environments is crucial for advanced materials research.
Existing systems may lack the capability for continuous rotation at cryogenic temperatures under ultra-high vacuum.

Purpose of the Study:

To design and build a novel homebuilt ultra-high-vacuum (UHV) rotating sample manipulator with integrated cryogenic cooling.
To enable continuous sample rotation at regulated cryogenic temperatures within a UHV environment.

Main Methods:

A sample holder was thermally anchored to a cryogenic cold head using flexible copper beryllium strips.
A similar contact mechanism was employed for electrical wiring to the sample holder for thermometry.
The apparatus was constructed for operation in an ultra-high vacuum environment.

Main Results:

The developed apparatus facilitates continuous sample rotation.
Regulated cryogenic temperatures are maintained during sample rotation.
The system operates effectively within an ultra-high vacuum environment.

Conclusions:

The homebuilt UHV rotating sample manipulator with cryogenic cooling is a functional apparatus.
This system is suitable for applications requiring continuous sample manipulation at cryogenic temperatures.
Potential applications include cryogenic sputtering and other advanced materials processing techniques.