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Updated: May 10, 2026

Cryogenic Sample Loading into a Magic Angle Spinning Nuclear Magnetic Resonance Spectrometer that Preserves Cellular Viability

Cryogenic Sample Loading into a Magic Angle Spinning Nuclear Magnetic Resonance Spectrometer that Preserves Cellular Viability

Published on: September 1, 2020

Cryogenic cooling with cryocooler on a rotating system.

S Oguri¹, J Choi, M Kawai

¹Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization, Oho, Tsukuba, Ibaraki 305-0801, Japan. shugo@post.kek.jp

The Review of Scientific Instruments

|June 8, 2013

Summary

This summary is machine-generated.

We created a system for long-term cryocooler operation on a rotating table, enabling continuous cooling and cold maintenance for applications like radio astronomy and cosmic microwave background observation.

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Area of Science:

Cryogenics and வெப்பநிலை control
Experimental physics instrumentation

Background:

Continuous operation of cryocoolers is essential for sensitive scientific instruments.
Maintaining cryogenic temperatures on rotating platforms presents significant engineering challenges.

Purpose of the Study:

To develop and validate a system for sustained cryocooler operation on a rotating table.
To enable cooling from room temperature and long-term cold maintenance under rotation.

Main Methods:

A cryostat housing the cryocooler was mounted on a rotating table.
A ground-based compressor supplied high-purity helium gas and electricity via rotary joints and central access holes.
System performance was tested at 20 rpm.

Main Results:

The system successfully provided continuous cooling and maintained cold conditions for extended periods.
Temperature stability was confirmed during continuous rotation at 20 rpm.
Interface components for helium gas and electricity circulation were successfully developed.

Conclusions:

The developed system enables reliable, long-term cryocooler operation in rotating environments.
This technology has broad applications in physics research, including Lorentz invariance tests, axion searches, radio astronomy, and cosmology.
The system is slated for use in a radio telescope for cosmic microwave background radiation observation.