International Journal on Magnetic Particle Imaging IJMPI
Vol. 9 No. 1 Suppl 1 (2023): Int J Mag Part Imag

Proceedings Articles

MPI coil temperature stabilization method based on phase change heat storage technology

Main Article Content


In magnetic particle imaging systems, it is necessary to pass a high current through the coil or to run it for a long time to perform a specific function. These generate a large amount of Joule heat in the coil, which introduces additional thermal noise and reduces the signal-to-noise ratio. In this work, we propose a method to control the coil temperature of magnetic particle imaging device based on phase change thermal storage technology by exploiting the latent heat properties of phase change materials. The simulation experiments show that the method makes the coil temperature remain almost constant and suppresses the problem of temperature variation of the energized wire. Compared with active temperature control methods such as liquid helium cooling , oil cooling and water cooling, this method has the advantages of low cost, small size, and good portability.

Article Details


[1] Knopp T, Gdaniec N, Rehr R, et al. Correction of linear system drifts in magnetic particle imaging[J]. Physics in Medicine & Biology, 2019, 64(12): 125013.
[2] Mahesh M, Barker P B. The MRI helium crisis: past and future[J]. Journal of the American College of Radiology, 2016, 13(12): 1536-1537.1.
[3] Natukunda F, Twongyirwe T M, Schiff S J, et al. Approaches in cooling of resistive coil-based low-field Magnetic Resonance Imaging (MRI) systems for application in low resource settings[J]. BMC Biomedical Engineering, 2021, 3(1): 1-11.
[4] Lawag R A, Ali H M. Phase change materials for thermal management and energy storage: A review[J]. Journal of Energy Storage, 2022, 55: 105602.
[5] Zhang Y, et al. Form-stable phase change materials with high phase change enthalpy from the composite of paraffin and cross-linking phase change structure[J]. Applied energy, 2016, 184: 241-246.
[6] Zhang Y, Du K, He J P, et al. Impact factors analysis of the enthalpy method and the effective heat capacity method on the transient nonlinear heat transfer in phase change materials (PCMs)[J]. Numerical Heat Transfer, Part A: Applications, 2014, 65(1): 66-83.
[7] Thieben F, et al. Heat it up: Thermal stabilization by active heating to reduce impedance drifts in capacitive matched networks[J]. International Journal on Magnetic Particle Imaging, 2022, 8.

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