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arXiv · 2509.21525

Effects of the vibrations and electromagnetic pollution induced by a closed-cycle pulse-tube cryostat on high-accuracy electrical measurements

Mathieu Taupin·Kamel Dougdag·Djamel Ziane·Francois Couedo
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Abstract

A paradigm shift in achieving (sub-)Kelvin environments is currently underway with the democratization of cryogen-free cryocoolers. This transition is driven by their user-friendly, continuous operation and the elimination of liquid helium, which is becoming increasingly scarce and expensive. Thanks to their large sample space and high cooling power, these systems can host superconducting magnets, making them an ideal platform for quantum technologies, materials science, low-temperature detectors, and even medical applications.The drawback is that this type of systems is inherently based on gas compression that induces a certain level of vibrations and electromagnetic perturbations, which can potentially prevent the determination of low amplitude signals or spoil their stability. In this paper we demonstrate that pulse-tube based cryocoolers can be used for electrical precision measurements under high magnetic field, using a commercial cryomagnetic system combined with a customized coaxial cryoprobe. Parts-per-billion level of measurement uncertainties in resistance determination, based on the quantum Hall resistance standard, is achievable, matching the state-of-the-art involving conventional cryostats based on liquid helium. We performed an extensive characterization of the cryomagnetic system to determine the level of vibrations and electromagnetic perturbations, revealing the drastic effect of the magnetic field on the electromagnetic noise level. If interferences can happen in some measurements, others appear immune to the perturbations, meaning that the cryogen-free system is not inherently a source of disturbance. The set of characterization measurements presented here is easily implementable in laboratories, which can help to determine the vibrations and electromagnetic pollution generated by any cryocooler.

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Mathieu Taupin, Kamel Dougdag, Djamel Ziane, Francois Couedo. 2025-09-25. Effects of the vibrations and electromagnetic pollution induced by a closed-cycle pulse-tube cryostat on high-accuracy electrical measurements. https://doi.org/10.1063/5.0305071

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