The impact of fluctuation of AC field on the precision of magnetic nanothermometer

Author

Zhongzhou Du ; Wenzhong Liu ; Zhixing Huang ; Rijian Su ; Yong Gan

Author_Institution

Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2015

fDate

26-28 March 2015

Firstpage

1

Lastpage

1

Abstract

Magnetic nanoparticle temperature estimation by AC magnetization spectrum is a novel, precise and noninvasive temperature measurement approach^[1-5]. Fluctuation of AC applied magnetic field is one of important impact factors that leading to temperature error. This study aims to evaluate the impact of the fluctuation of AC applied magnetic field upon the accuracy of the temperature estimation while using AC magnetic fields to assess the information. Because the frequency spectrum of the magnetization is sensitive to the temperature, the harmonic amplitude of AC magnetization allows temperature estimation. Therefore, the fluctuation of AC applied magnetic field leads to temperature error.

Keywords

fluctuations; magnetic particles; magnetisation; nanomagnetics; nanoparticles; nanosensors; temperature measurement; thermometers; AC magnetic field fluctuation; AC magnetization spectrum; frequency spectrum; harmonic amplitude; magnetic nanoparticle temperature estimation; magnetic nanothermometer; noninvasive temperature measurement; temperature error; Estimation error; Fluctuations; Magnetic fields; Magnetization; Temperature; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetic Particle Imaging (IWMPI), 2015 5th International Workshop on

Conference_Location

Istanbul

Print_ISBN

978-1-4799-7269-2

Type

conf

DOI

10.1109/IWMPI.2015.7107039

Filename

7107039