Design of axial shim coils for Magnetic Resonance Imaging

Zhipeng Ni; Qiuliang Wang; Chunzhong Wang

doi:10.1109/TASC.2010.2098013

Design of axial shim coils for Magnetic Resonance Imaging

Zhipeng Ni
, Qiuliang Wang
, Chunzhong Wang

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

An efficient design method of axial shim coils for Magnetic Resonance Imaging is presented. The axial shim coils are designed to improve magnetic field homogeneity which compensates for the unavoidable construction tolerances, cold shrink of magnet frame and some other negative effects. For simplifying design complexity of axial shim coils and reducing the difficulty of engineering, two sets of three pairs of single-layer coils in series are designed to eliminate all of the lower six orders of spherical harmonics (Z1, Z2, Z3, Z4, Z5, and Z6) for one time. Computing search method is employed to optimize positions of the shim coils. Details of the design method for a sample of a Baby MRI scanner and the calculation results are presented.

Original language	English
Article number	5688199
Pages (from-to)	2084-2087
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	21
Issue number	3 PART 2
DOIs	https://doi.org/10.1109/TASC.2010.2098013
State	Published - Jun 2011

Keywords

Axial shim coils design
Homogeneity
MRI
Spherical harmonic expansion

Access to Document

10.1109/TASC.2010.2098013

Cite this

@article{7329c9366d774f75a3deab5851f13977,

title = "Design of axial shim coils for Magnetic Resonance Imaging",

abstract = "An efficient design method of axial shim coils for Magnetic Resonance Imaging is presented. The axial shim coils are designed to improve magnetic field homogeneity which compensates for the unavoidable construction tolerances, cold shrink of magnet frame and some other negative effects. For simplifying design complexity of axial shim coils and reducing the difficulty of engineering, two sets of three pairs of single-layer coils in series are designed to eliminate all of the lower six orders of spherical harmonics (Z1, Z2, Z3, Z4, Z5, and Z6) for one time. Computing search method is employed to optimize positions of the shim coils. Details of the design method for a sample of a Baby MRI scanner and the calculation results are presented.",

keywords = "Axial shim coils design, Homogeneity, MRI, Spherical harmonic expansion",

author = "Zhipeng Ni and Qiuliang Wang and Chunzhong Wang",

year = "2011",

month = jun,

doi = "10.1109/TASC.2010.2098013",

language = "英语",

volume = "21",

pages = "2084--2087",

journal = "IEEE Transactions on Applied Superconductivity",

issn = "1051-8223",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "3 PART 2",

}

TY - JOUR

T1 - Design of axial shim coils for Magnetic Resonance Imaging

AU - Ni, Zhipeng

AU - Wang, Qiuliang

AU - Wang, Chunzhong

PY - 2011/6

Y1 - 2011/6

N2 - An efficient design method of axial shim coils for Magnetic Resonance Imaging is presented. The axial shim coils are designed to improve magnetic field homogeneity which compensates for the unavoidable construction tolerances, cold shrink of magnet frame and some other negative effects. For simplifying design complexity of axial shim coils and reducing the difficulty of engineering, two sets of three pairs of single-layer coils in series are designed to eliminate all of the lower six orders of spherical harmonics (Z1, Z2, Z3, Z4, Z5, and Z6) for one time. Computing search method is employed to optimize positions of the shim coils. Details of the design method for a sample of a Baby MRI scanner and the calculation results are presented.

AB - An efficient design method of axial shim coils for Magnetic Resonance Imaging is presented. The axial shim coils are designed to improve magnetic field homogeneity which compensates for the unavoidable construction tolerances, cold shrink of magnet frame and some other negative effects. For simplifying design complexity of axial shim coils and reducing the difficulty of engineering, two sets of three pairs of single-layer coils in series are designed to eliminate all of the lower six orders of spherical harmonics (Z1, Z2, Z3, Z4, Z5, and Z6) for one time. Computing search method is employed to optimize positions of the shim coils. Details of the design method for a sample of a Baby MRI scanner and the calculation results are presented.

KW - Axial shim coils design

KW - Homogeneity

KW - MRI

KW - Spherical harmonic expansion

UR - https://www.scopus.com/pages/publications/79957922569

U2 - 10.1109/TASC.2010.2098013

DO - 10.1109/TASC.2010.2098013

M3 - 文章

AN - SCOPUS:79957922569

SN - 1051-8223

VL - 21

SP - 2084

EP - 2087

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 3 PART 2

M1 - 5688199

ER -

Design of axial shim coils for Magnetic Resonance Imaging

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this