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Cryogenic cooling with cryocooler on a rotating system.
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
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.
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.
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