An Experimental Study of the Magnetic Properties of Cryogel*

Motivated by the desire to improve thermal insulation techniques employed to isolate MRI cryo-coils from the live animals being imaged, the aerogel-based material known as Cryogel®-Z [1] was identified. The low temperature thermal properties have been reported [2], so the purpose of this work is to characterize the electromagnetic properties and response. Using a commercial magnetometer, the temperature dependence of the low magnetic field(0.1 Tesla) susceptibility was studied from 2 K to 300 K and the magnetic field dependence of the isothermal (5 K) magnetization was investigated up to 7 Tesla. The analysis of these data will be presented with the goal of making the results available via FAIR data management practices [3]. Extensions of the work to explore high frequency response (nominally in the range used in MRI instruments) may be presented.

* This work is coauthored with Quinton L. Weibe, UF Physics, and Mark W. Meisel, UF Physics and NHMFL.

[1] https://www.aerogel.com/product/cryogel-z/

[2] V. Ilardi et al., IOP Conf. Ser.: Mater. Sci. Eng. 756 (2020) 012005,doi:10.1088/1757-899X/756/1/012005

[3] https://nationalmaglab.org/about/fair-data