Related Experiment Video
Updated: Jul 14, 2026
06:42
Cryogenic Sample Loading into a Magic Angle Spinning Nuclear Magnetic Resonance Spectrometer that Preserves Cellular Viability
Published on: September 1, 2020
Automated sample exchange and tracking system for neutron research at cryogenic temperatures
J E Rix1, J K R Weber, L J Santodonato
1Containerless Research, Inc., Evanston, Illinois 60202, USA.
The Review of Scientific Instruments
|May 17, 2007
Summary
An automated cryogenic system was developed for rapid sample exchange and tracking using a LABVIEW program and closed-cycle refrigerator. This system ensures precise sample handling and cooling to 10 K in under 7 minutes, enhancing experimental efficiency.
Area of Science:
- Cryogenics
- Automation
- Materials Science
Background:
- Automated sample handling is crucial for cryogenic experiments.
- Remote operation and precise temperature control are needed for complex studies.
Purpose of the Study:
- To develop an automated system for sample exchange and tracking in a cryogenic environment.
- To enable remote computer control for efficient sample manipulation and cooling.
Main Methods:
- A system utilizing a closed-cycle refrigerator (CCR) for cooling samples to approximately 10 K.
- Automated sample insertion/retrieval of up to 24 samples using vanadium cans (6-10 mm diameter).
- LABVIEW software for coordinated operations, including sample identification via video camera and remote network control.
Main Results:
- Sample cooling to 10 K achieved in approximately 7 minutes (including precooling).
- Sample identification and exchange operations completed in approximately 2 minutes.
- System allows temperature control up to 350 K using resistive heating and a PID control loop.
Conclusions:
- The developed automated system significantly enhances efficiency and precision in cryogenic sample handling.
- The system's remote operation and rapid cooling capabilities are valuable for various scientific applications.
- Optimized heat transfer using low-pressure helium is essential for achieving effective cooling rates.
