Related Experiment Video
Updated: Nov 10, 2025
Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
Published on: August 17, 2017
A Bitter-type electromagnet for complex atomic trapping and manipulation
J L Siegel1, D S Barker1, J A Fedchak1
1Sensor Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
None:
We create a pair of symmetric Bitter-type electromagnet assemblies capable of producing multiple field configurations including uniform magnetic fields, spherical quadruple traps, or Ioffe-Pritchard magnetic bottles. Unlike other designs, our coil allows both radial and azimuthal cooling water flows by incorporating an innovative 3D-printed water distribution manifold. Combined with a double-coil geometry, such orthogonal flows permit stacking of non-concentric Bitter coils. We achieve a low thermal resistance of 4.2(1) °C kW-1 and high water flow rate of 10.0(3) l min-1 at a pressure of 190(10) kPa.
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