Conveners
Wed-Mo-Or20: Magnets for MRI
- Michael Parizh (GE Global Research)
- David Larbalestier (National High Magnetic Field Laboratory)
Dr David Hawksworth, former Managing Director of Oxford Magnet Technology Ltd., passed away on March 15th aged 63. David's significant contribution to development of magnets for MRI is reviewed from joining Oxford Instruments in 1981 through to Director of Oxford Magnet Technology Ltd., where he was instrumental in leading the team which developed the first high field whole body 1.0T, 1.5T and...
Magnetic Resonance Imaging, MRI, is a powerful medical diagnostic tool and the largest commercial application of superconductivity. MRI magnet design is determined by competing requirements including functional performance, patient comfort, ease of siting in a hospital, minimum acquisition and lifecycle cost. The increased center field, maximized uniformity volume, minimized field decay and...
Neurospin is a neuroscience research center located in France at CEA Saclay. Since its opening in November 2006, several MRI equipment are operated. The facility will be equipped with an innovative Whole Body 11.7 T MRI magnet, as part of the Iseult/Inumac project, a French-German initiative focused on very high magnetic-field molecular imaging. The Iseult/Inumac magnet is an actively shielded...
We started developing REBa2Cu3O7-δ (REBCO) magnets for ultra-high-field MRI systems in 2013. Our final targets are 9.4 T MRI systems for whole-body and brain imaging. In the project, a conduction-cooled REBCO MRI magnet having a room-temperature bore of 396 mm was fabricated and tested in order to evaluate the magnetic field homogeneity and stability. The magnet composed of 60 single pancakes...
The new HTS application project supported by New Energy and Industrial Technology Development Organization (NEDO) started on July 2016 in Japan. One of the targets of this project is to demonstrate the half-scale magnet resonance imaging (MRI) system using high-temperature superconducting (HTS) magnets with REBCO coils. In the first phase of this project (2016 – 2018), a three-tesla magnet...
This work is a contribution to the development of the technology for an MgB2 based cryogen-free superconducting magnet for a 3T whole body MRI system. Specifically, we demonstrate that a react and wind coil segment can be made using a high-performance in situ route MgB2 conductor and that the coil could be operated in conduction mode with low levels of temperature gradient. A multifilamentary...
1.5 T magnetic resonance scanner has been successfully completed and high resolution images have been acquired. It is based on 1.5 T superconducting magnet developed and manufactured within the russian Everest project with warm bore 90 cm. Peak field on the coil windings is about 3.5 T. The field homogeneity is about 1 ppm in 45 cm sphere, the magnet field stability is better than 0.02...
