Title :
Toroidal variometer for a magnetic particle imaging device
Author :
Stelzner, Jan ; Bringout, Gael ; Graeser, Matthias ; Buzug, Thorsten M.
Author_Institution :
Inst. of Med. Eng., Univ. zu Lubeck, Lubeck, Germany
Abstract :
In order to gain a supremely pure high-power signal, it is necessary to use high attenuation frequency filters. For this purpose, oscillating circuits can be used. The reactive elements in each oscillating circuit have to be adjusted very precisely to each other and to the resonant frequency as well. Additionally, it has to be taken care of scattering fields and signal distortion. The presented device is an air core coil with variable inductance and low scattering fields. It does not contain any ferromagnetic material to avoid the generation of higher harmonics within the filter.
Keywords :
biomagnetism; biomedical electronics; biomedical equipment; coils; inductance; magnetic cores; magnetic particles; air core coil; high-attenuation frequency filters; high-power signal; magnetic particle imaging device; oscillating circuits; reactive elements; resonant frequency; roidal variometer; scattering fields; signal distortion; variable inductance; Biomedical imaging; Fasteners; Inductance; Magnetic particles; Magnetic separation; Scattering;
Conference_Titel :
Magnetic Particle Imaging (IWMPI), 2015 5th International Workshop on
Conference_Location :
Istanbul
Print_ISBN :
978-1-4799-7269-2
DOI :
10.1109/IWMPI.2015.7107074
