Quadrupole Coils

  • Four coil pairs
  • Compact package
  • Complete magnetic solution for RuBECi atom chip systems

Product Description

Product Description

The Quadrupole Coils coil assembly consists of eight coils arranged to apply magnetic bias fields and gradients across atomic samples in ColdQuanta’s RuBECi® ultracold atom cell. In addition to the MOT field and bias fields in each cardinal axis, the quadrupole coil assembly enables magnetic trapping and transport of the atomic sample from the MOT to the atom chip in a linear quadrupole trap. Magnetic field gradients of greater than 150 G/cm are easily achievable in the coil pair closest to the chip, making the coupling of atoms from the external trap to the chip trap straightforward. The assembly is mounted to around the vacuum cell by the use of a coil-rail system. The coil assembly also allows provides the user with a large clear aperture through the top of the assembly, making it possible to access the backside of the atom chip with a large microscope objective. The coil assembly is delivered with a standard 6’ pigtail of ultra-flexible cable.

Product Specifications

Center aperture


2” x 1”
51 mm x 25 mm
2.9 mm
Coil Rail spacing2.362”x 1.142”
60 mm x 2.9 mm
Coil Rail diameter0.250”
6.35 mm
Magnetic field with coils in
Helmholtz configuration

±19.9 G/A
±22.6 G/A
±7.6 G/A

Magnetic field gradient
MOT coils
Transfer coils
±9.0 G/cm-A
±15.5 G/cm-A
Maximum current rating
Y- and Z- coils
X- and T- coils
±3 A
±12 A
Dimensions3.25” x 3.1” x 4.6”
83 mm x 79 mm x 116 mm

Product Downloads

User Manual

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