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arXiv · 2408.02941

QuSpin Zero-Field Magnetometer Characterization for the TUCAN Experiment

Michael Zhao·Russell Mammei·Derek Fujimoto
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Abstract

The TUCAN nEDM experiment characterizes the QuSpin Zero-Field Magnetometer (QZFM) to accurately map residual fields within a large magnetically shielded room. The magnetometer's intrinsic offset was measured to be within 3 nT and stable over a period of one year. The response was shown to be within 2 percent of linearity in the zero-field regime, up to 2 nTpp, and then follows a smooth dispersion curve. Crosstalk effects induced by multisensor operation were determined to have a small effect, and inconsequential with a separation above 6 cm. These results enable the QZFM for accurate measurement of DC fields, increase the operational range of QZFM by a factor of more than an order of magnitude, and allow for higher efficiency and flexibility by green-lighting simultaneous operation of multiple QZFMs.

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Michael Zhao, Russell Mammei, Derek Fujimoto. 2024-08-06. QuSpin Zero-Field Magnetometer Characterization for the TUCAN Experiment. https://arxiv.org/abs/2408.02941

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