Reducing current noise in cryogenic experiments by vacuum-insulated cables

E. Mykkänen; J. S. Lehtinen; A. Kemppinen; C. Krause; D. Drung; J. Nissilä; A. J. Manninen

doi:10.1063/1.4963904

Reducing current noise in cryogenic experiments by vacuum-insulated cables

Instrumentation and Detectors 2016-10-12 v2

Authors: E. Mykkänen , J. S. Lehtinen , A. Kemppinen , C. Krause , D. Drung , J. Nissilä , A. J. Manninen

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Abstract

We measure the current noise of several cryogenic cables in a pulse tube based dilution refrigerator at frequencies between about 1~mHz and 50~kHz. We show that vibration-induced noise can be efficiently suppressed by using vacuum-insulated cables between room temperature and the 2nd pulse tube stage. A noise peak below 4 fA at the 1.4~Hz operation frequency of the pulse tube, and a white noise density of 0.44 fA/\sqrt{Hz} in the millihertz range are obtained.

Keywords

cryogenics noise

Cite

@article{arxiv.1604.03903,
  title  = {Reducing current noise in cryogenic experiments by vacuum-insulated cables},
  author = {E. Mykkänen and J. S. Lehtinen and A. Kemppinen and C. Krause and D. Drung and J. Nissilä and A. J. Manninen},
  journal= {arXiv preprint arXiv:1604.03903},
  year   = {2016}
}

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