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Updated: Apr 25, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Note: High turn density magnetic coils with improved low pressure water cooling for use in atom optics
Nicholas McKay Parry1, Mark Baker1, Tyler Neely1
1School of Mathematics and Physics, University of Queensland, St Lucia 4072, Australia.
Abstract:
We describe a magnetic coil design utilizing concentrically wound electro-magnetic insulating (EMI) foil (25.4 μm Kapton backing and 127 μm thick layers). The magnetic coils are easily configurable for different coil sizes, while providing large surfaces for low-pressure (0.12 bar) water cooling. The coils have turn densities of ~5 mm(-1) and achieve a maximum of 377 G at 2.1 kW driving power, measured at a distance 37.9 mm from the axial center of the coil. The coils achieve a steady-state temperature increase of 36.7°C/kW.
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