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Copyright (c) 2022 Bo Zhang, Haoran Zhang, Yanjun Liu, Jie He, Jing Zhong, Hui Hui, Jie Tian
This work is licensed under a Creative Commons Attribution 4.0 International License.
Magnetic particle spectroscopy (MPS) is a method to characterize the characteristics of magnetic nanoparticles (MNP), which is of great significance for the research of magnetic particle imaging (MPI) and magnetic hyperthermia. In the MPS system, the waveform characteristics of the excitation magnetic field will directly impact the received particle signal. Aiming at the problem that sinusoidal wave is used by default in most current studies, this study has studied the excitation effect of the trapezoidal wave and triangular wave. The results show that under the excitation frequencies of 10kHz and 15kHz, the excitation effect of the trapezoidal wave is obviously better than the other two waveforms, and the effect of the triangular wave is the worst. The research is enormously significant to the optimization of MPS and even MPI.
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