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Design and Simulation of Low Cost and Low Magnetic Field MRI System

Authors:
Sweta Ghosh
Vikram Thakur
Rahul Shrestha
Shubhajit Roy Chowdhury
Vinayak Hande

Keywords: Helmholtz coil; Maxwell coil; RF coil; constant DC source; homogeneity; magnetic field

Abstract:
We present the design of a Magnetic Resonance Imaging (MRI) system based on Helmholtz coil in place of a permanent magnet which is common in commercial MRI systems. Inspired by the homogeneity of the magnetic field of the Helmholtz coil, the design has been proposed. This coil generates a main magnetic field of 0.2T which is a low magnetic field and hence it was possible to make the system low weight to some extent. This makes the proposed design suitable to be taken and operated at remote locations. Along with the main magnetic field, other components are also necessary like the gradient coils, radio-frequency coils and a constant DC current source, to mention a few. The gradient has strength of 75µT/m. The resonating frequency at which the radio-frequency operates is 8.256MHz for 0.2T and the DC source gives a current of 10A with 50V DC which is essential requirement for the operating of the coils. All the components taken together make the whole system.

Pages: 31 to 36

Copyright: Copyright (c) IARIA, 2018

Publication date: September 16, 2018

Published in: conference

ISSN: 2308-4405

ISBN: 978-1-61208-659-0

Location: Venice, Italy

Dates: from September 16, 2018 to September 20, 2018