The Impact of Sample Insulation on Estimating the Heating Power of Magnetic Nanoparticles by AC Calorimetry

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Abstract

Correct estimation of the heating power of magnetic nanoparticles is important for magnetic hyperthermia treatment. This work investigates the impact of sample insulation in AC calorimetry. We show that temperature increase in the insulation can lead to systematic errors when estimating the heating power by the corrected slope method. The errors arise if the temperature of the sample environment is kept fixed at its initial temperature in the data analysis. To correct for this, we propose the use of a local temperature difference between the sample and the sample environment.

Original languageEnglish
JournalIEEE Magnetics Letters
Volume14
Pages (from-to)1-5
ISSN1949-307X
DOIs
Publication statusPublished - 2023

Keywords

  • Magnetic hyperthermia
  • Nanomagnetics
  • Non-adiabatic AC calorimetry
  • Sample environment
  • Specific absorption rate (SAR)
  • Insulation

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