3-D FEM analysis of residual magnetism produced by x-gradient coil of permanent magnet type of MRI

IEEE Transactions on Magnetics

Volumn 43, Issue 4, 2007, Pages 1809-1812

  Takahashi, Norio ^a,b   Muraoka, Atsushi ^b   Miyagi, Daisuke ^b   Miyata, Koji ^c   Ohashi, Ken ^c  

^a IEEE   (Japan)

^b OKAYAMA UNIVERSITY   (Japan)

^c SHIN ETSU CHEMICAL CO LTD   (Japan)

Author keywords

Finite element method (FEM); Hysteresis; Magnetic resonance imaging (MRI); Minor loop

Indexed keywords

ELECTRIC COILS; MAGNETIC HYSTERESIS; MAGNETIC RESONANCE IMAGING; MAGNETISM; MAGNETIZATION; PERMANENT MAGNETS;

GRADIENT COILS; MINOR LOOPS; RESIDUAL MAGNETIZATION;

FINITE ELEMENT METHOD;

EID: 33947685951     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2007.892526     Document Type: Article

References (5)

1. T. Miyamoto, H. Sakurai, H. Takabayashi, and M. Aoki, "A development of a permanent magnet assembly for MRI devices using Nd-Fe-B material," IEEE Trans. Magn., vol. 25, no. 5, pp. 3907-3909, Sep. 1989.
2. N. Takahashi, T. Kayano, K. Miyata, and K. Ohashi, "Effect of minor loop on magnetic characteristics of permanent magnet type of MRI," IEEE Trans. Magn., vol. 35, no. 3, pp. 1893-1896, May 1999.
3. N. Takahashi, R. Suenaga, K. Miyata, and K. Ohashi, "Analysis of the magnetic property of a permanent-magnet-type MRI-behavior of residual magnetization," IEEE Trans. Magn., vol. 39, no. 3, pp. 1337-1340, May 2003.
4. K. Miyata, K. Ohashi, A. Muraoka, and N. Takahashi, "3-D magnetic field analysis of permanent magnet type of MRI taking account of minor loop," IEEE Trans. Magn., vol. 42, no. 4, pp. 1451-1454, Apr. 2006.
5. C. Heck, Magnetic Materials and Their Applications. London, U.K.: Butterworth, 1974.