Open AccessZinc doped copper ferrite particles as temperature sensors for magnetic resonance imaging
Author(s) -
J Hankiewicz,
Noweir Ahmad Alghamdi,
Nicholas M. Hammelev,
Nicholas Anderson,
R. E. Camley,
Karl F. Stupic,
M. Przybylski,
J. Żukrowski,
Z. Celiński
Publication year - 2016
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.4973439
Subject(s) - curie temperature , materials science , nuclear magnetic resonance , laser linewidth , magnetic moment , ferrite (magnet) , magnetic resonance imaging , copper , zinc ferrite , doping , temperature measurement , magnetic nanoparticles , condensed matter physics , zinc , nanoparticle , optics , ferromagnetism , optoelectronics , nanotechnology , composite material , physics , metallurgy , medicine , laser , quantum mechanics , radiology
We investigate the use of Cu0.35Zn0.65Fe2O4 particles as temperature-dependent sensors in magnetic resonance imaging (MRI). This material has a Curie temperature near 290 K, but in the large magnetic fields found in MRI scanners, there is a significant temperature-dependent magnetic moment near body temperature; 310 K. When the ferrite particles are doped into an agar gel, the temperature-dependent magnetic moment leads to a temperature-dependent broadening of the NMR linewidth for water protons and to a temperature-dependent image intensity for MRI, allowing one to make temperature maps within objects. The temperature resolution is about 1.3 K
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