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Presentation 2014-01-23 11:25
Study of Magnetic Particle Imaging (MPI) using HTS-SQUID by Detection of Second Harmonics
Tomoya Oishi, Hayaki Murata (Toyohashi Univ. of Tech.), Yi Zhang (Peter Gruenberg Inst.), Yoshimi Hatsukade, Saburo Tanaka (Toyohashi Univ. of Tech.) SCE2013-40 Link to ES Tech. Rep. Archives: SCE2013-40
Abstract (in Japanese) (See Japanese page) 
(in English) We have developed a method to improve the detection sensitivity for the magnetization M of magnetic nanoparticles (MNP). The M response of MNP was systematically analyzed and experimentally proven. A high sensitive device, HTS-SQUID magnetometer was applied to the MPI. The M response of MNP to an applied magnetic field H(M-H characteristics) could be divided into a linear region and a saturation region, which are separated at a knee field Hk. When applying an excitation AC magnetic field (Hac) and an additional DC bias field (Hdc), the second harmonic of M reaches the maximum at a knee point due to the nonlinearity of the M-H characteristics. The advantage of the use the second harmonic response is that the response can be taken for small Hac. It is 7 times larger than a third harmonic. Then we could successfully demonstrate the 1D image of two separated bottle–shaped phantom filled with MNP using a lock-in amplifier.
Keyword (in Japanese) (See Japanese page) 
(in English) SQUID / Magnetic Particle Imaging / MPI / Magnetic Nanoparticles / MNP / Imaging / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 401, SCE2013-40, pp. 31-36, Jan. 2014.
Paper # SCE2013-40 
Date of Issue 2014-01-16 (SCE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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Download PDF SCE2013-40 Link to ES Tech. Rep. Archives: SCE2013-40

Conference Information
Committee SCE  
Conference Date 2014-01-23 - 2014-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikaishinkou-kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Thin film, device technologies and their applications, etc. 
Paper Information
Registration To SCE 
Conference Code 2014-01-SCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study of Magnetic Particle Imaging (MPI) using HTS-SQUID by Detection of Second Harmonics 
Sub Title (in English)  
Keyword(1) SQUID  
Keyword(2) Magnetic Particle Imaging  
Keyword(3) MPI  
Keyword(4) Magnetic Nanoparticles  
Keyword(5) MNP  
Keyword(6) Imaging  
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Keyword(8)  
1st Author's Name Tomoya Oishi  
1st Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
2nd Author's Name Hayaki Murata  
2nd Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
3rd Author's Name Yi Zhang  
3rd Author's Affiliation Peter Gruenberg Institute (Peter Gruenberg Inst.)
4th Author's Name Yoshimi Hatsukade  
4th Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
5th Author's Name Saburo Tanaka  
5th Author's Affiliation Toyohashi University of Technology (Toyohashi Univ. of Tech.)
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Speaker Author-1 
Date Time 2014-01-23 11:25:00 
Presentation Time 25 minutes 
Registration for SCE 
Paper # SCE2013-40 
Volume (vol) vol.113 
Number (no) no.401 
Page pp.31-36 
#Pages
Date of Issue 2014-01-16 (SCE) 


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