• Corpus ID: 238583775

Bespoke magnetic field design for a magnetically shielded cold atom interferometer

@inproceedings{Hobson2021BespokeMF,
  title={Bespoke magnetic field design for a magnetically shielded cold atom interferometer},
  author={P.J. Hobson and Jamie Vovrosh and B. Stray and M. Packer and Jonathan Winch and Niall Holmes and Farzan Hayati and Kevin T. McGovern and Richard Bowtell and Matthew J. Brookes and Kai Bongs and T. Mark Fromhold and Michael Holynski},
  year={2021}
}
Quantum sensors based on cold atoms are being developed which produce measurements of unprecedented accuracy. Due to shifts in atomic energy levels, quantum sensors often have stringent requirements on their internal magnetic field environment. Typically, background magnetic fields are attenuated using high permeability magnetic shielding, with the cancelling of residual and introduction of quantisation fields implemented with coils inside the shield. The high permeability shield, however… 

Figures and Tables from this paper

References

SHOWING 1-10 OF 56 REFERENCES
Magnetic Field Design in a Cylindrical High-Permeability Shield: The Combination of Simple Building Blocks and a Genetic Algorithm
Magnetically-sensitive experiments and newly-developed quantum technologies with integrated high-permeability magnetic shields require increasing control of their magnetic field environment and
Planar Coil Optimization in a Magnetically Shielded Cylinder
Hybrid magnetic shields with both active field generating components and high-permeability magnetic shielding are increasingly needed for a variety of technologies and experiments that require
Precision magnetic field modelling and control for wearable magnetoencephalography
TLDR
This work shows that even in an OPM-optimised passive shield with extremely low remnant magnetic field, head movement generates significant artefacts in MEG data that manifest as low-frequency interference, and introduces a magnetic field mapping technique that accurately reconstructs the magnitude of known magnetic fields.
Quantum sensing for gravitational cartography
The sensing of gravity has emerged as an important tool in geophysics for applications such as engineering and climate research 1,2,3 where it provides the capability to probe otherwise
Quantum sensing for gravitational cartography. PREPRINT (Version 1) available at Res. Sq
  • 2021
Rubidium 87 D line data (2021). Available online at http://steck.us/alkalidata
  • 2021
Accel
  • Spectrometers, Detect. Assoc. Equip. 949, 162837, DOI: 10.1016/j.nima.2019.162837
  • 2020
Analytic models of magnetically enclosed spherical and solenoidal coils
Abstract We provide analytic solutions of the net magnetic field generated by spherical and solenoidal coils enclosed in highly-permeable, coaxial magnetic shields. We consider both spherical and
Approximate expressions for the magnetic field created by circular coils inside a closed cylindrical shield of finite thickness and permeability
Abstract The common approach to create a uniform magnetic field in the μ T range is placing a coil set inside a magnetic shield. One of the main obstacles to achieving the requested uniformity can be
Implementation and usage of bfieldtools
  • ArXiv
  • 2020
...
1
2
3
4
5
...