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Vol. 231, Issue 3, March 2019, pp. 25-30




Modeling and Simulation of Low-Cost and Low-Magnetic Field Magnetic Resonance Imaging

Sweta GHOSH, Prateek Kumar SONKER and * Shubhajit Roy CHOWDHURY

School of Computing and Electrical Engineering IIT Mandi, Kamand 175005, Mandi, H. P., India
* Tel.: +91 1905 267110, fax: +91 1905 267009

E-mail: src@iitmandi.ac.in


Received: 3 March 2019 /Accepted: 27 March 2019 /Published: 29 March 2019

Digital Sensors and Sensor Sysstems


Abstract: Magnetic Resonance Imaging as the name suggests is a technique of obtaining image using magnetic field and resonance of the nucleus. The study done in this paper aims to propose a design and model a low magnetic field Magnetic resonance imaging in which Helmholtz coil plays a vital part. Commercially available machines generally use permanent magnet or superconducting magnet. This magnet has been replaced with Helmholtz coil in the design proposed in this paper. The Helmholtz coil produces a magnetic field of 0.2 T which is also homogenous upto 2 percent in the region of study. This homogeneity inspired to go for this design. Along with the Helmholtz coil, other necessary coils are gradient coils and radio-frequency coil. Maxwell and Saddle coils are used as gradient coils having a gradient strength of 75 T/m. The resonating frequency for this magnetic field is 8.526 MHz. A prototype of this machine with scaled low magnetic field is under development.


Keywords: Helmholtz coil, Maxwell coil, Radio-frequency coil, Homogeneity, Saddle coil, Resonant frequency.


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