Manufacturing of the Iseult/INUMAC Whole Body 11.7 T MRI Magnet

Védrine, P.; Aubert, G.; Belorgey, J.; Berriaud, Christophe; Bourquard, A.; Brédy, P.; Donati, A.; Dubois, Olivier; Elefant, F.; Gilgrass, G.; Juster, F.P.; Lannou, H.; Molinié, F.; Nusbaum, M.; Nunio, F.; Payn, A.; Quettier, L.; Schild, T.; Scola, L.; Sinanna, A.

doi:10.1109/tasc.2013.2286256

Cited by 17 publications

(9 citation statements)

References 5 publications

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“…Currently, a worldwide unique whole-body scanner with a field strength of 11.7 T is being manufactured [39]. The results from the present study can therefore be seen as an outlook to possibilities of future ultra-high field MR systems that will in the long term be part of the clinical routine.…”

Section: Discussionmentioning

confidence: 70%

Intervertebral disc lesions: visualisation with ultra-high field MRI at 11.7 T

Berger-Roscher¹,

Galbusera

Rasche³

et al. 2015

Eur Spine J

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Section: Discussionmentioning

confidence: 70%

Intervertebral disc lesions: visualisation with ultra-high field MRI at 11.7 T

Berger-Roscher¹,

Galbusera

Rasche³

et al. 2015

Eur Spine J

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“…Qualification trials of the tooling and procedure successfully concluded with a validation test using 5 prototype DPs to prove the stacking process, laser data collection and dimensions after coil compression [4]. Stacking of the 170 DPs ( Fig.…”

Section: A Double Pancake Stackingmentioning

confidence: 99%

“…The first of these, the Power Converter for Loading (PCL), brings the magnet up to the nominal current of 1483 A at 40 V, and the second, the Power Converter for Stabilization (PCS), then provides continuous power to the magnet at the nominal current in stabilized mode [4]. Manufacturing of power supplies for the main circuit has been completed by Jema Energia in Spain for the PCS and Hazemeyer in France for PCL.…”

Section: Auxiliary Equipmentmentioning

confidence: 99%

Iseult/INUMAC Whole Body 11.7 T MRI Magnet

Védrine¹,

Gilgrass²,

Aubert³

et al. 2015

IEEE Trans. Appl. Supercond.

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A new innovative Whole Body 11.7 T MRI magnet is currently being manufactured at Alstom Belfort as part of the Iseult/Inumac project, a French-German initiative focused on very high magnetic-field molecular imaging. It will be installed in 2015 in a neuroscience research center with other very high field MRI equipment, operating in France at CEA Saclay since November 2006. This actively shielded magnet system, manufactured from NbTi superconductor, will generate a homogeneous field level of 11.75 T within a 90 cm warm bore, and will operate at a current of 1483 A, in driven mode, in a bath of superfluid LHe at 1.8K. The stored energy is 338 MJ and the inductance 308 H. The cryostat has external dimensions of 5 m in diameter and 5.2 m in length, for a total weight of the magnet of 132 tons. Before the start of the magnet manufacturing, developments made on prototypes have confirmed a specific set of design and manufacturing options including the conductor choice and the proposed cryogenic and electrical schemes. The main coil is wound as double pancakes laterally wetted by HeII. The magnet is serviced by a separate cryogenic and electrical facility forming an integral part of the installation. The developments and the magnet manufacturing have been supervised by an independent Magnet Advisory Committee. Full-scale serial production of the 170 double pancakes which form the main coil package has been finished by Alstom. The main coil is being assembled and the cryostating of the magnet should be finished by the middle of 2015. Full tests and commissioning of the magnet at 1.8K at Neurospin are expected in 2015.Index Terms-Magnetic resonance imaging (MRI), niobium titanium, superconducting magnet.

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“…In contrast to the solenoidal winding pattern for superconducting wires in a conventional design, some magnets are constructed from 'pancake' or 'double pancake' geometries. Flat pancakes have been constructed for some high resolution NMR magnets, and form the basis for the projected 11.7 T whole‐body system for the Commissariat à l'énergie atomique et aux énergies alternatives (CEA) in Paris . The choice of double‐pancake design rests mainly on an attempt to make the system cryostable, i.e.…”

Section: Magnet Technologymentioning

confidence: 99%

The technological future of 7 T MRI hardware

Webb

Moortele

2015

NMR in Biomedicine

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In this article we present our projections of future hardware developments on 7 T human MRI systems. These include compact cryogen-light magnets, improved gradient performance, integrated RF-receive and direct current shimming coil arrays, new RF technology with adaptive impedance matching, patient-specific specific absorption rate estimation and monitoring, and increased integration of physiological monitoring systems. Copyright © 2015 John Wiley & Sons, Ltd.

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Manufacturing of the Iseult/INUMAC Whole Body 11.7 T MRI Magnet

Cited by 17 publications

References 5 publications

Intervertebral disc lesions: visualisation with ultra-high field MRI at 11.7 T

Intervertebral disc lesions: visualisation with ultra-high field MRI at 11.7 T

Iseult/INUMAC Whole Body 11.7 T MRI Magnet

The technological future of 7 T MRI hardware

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