9.4T Animal

Bruker BioSpec 94/30 USR 9.4T Preclinical MRI System

The Bruker BioSpec in vivo spectroscopy imaging system has an actively shielded 9.4T magnet with a 31-cm warm bore. This system has magnetic field uniformity of 0.1 ppm over a 70 mm DSV, and10 ppm over a 180 mm DSV. To keep such high levels of magnetic field uniformity, the system has 12 user-adjustable shim coils. Infrastructure is in place to augment the vendor-supplied shims with six additional shim coils, which will be used to further enhance magnetic field uniformity for imaging and spectroscopic studies. Gradients up to 100 mT/m can be generated along all three axes. The RF system has two transmission channels capable of experiments on 1H, 19F, 13C, 14N, and 31P nuclei,and two matching receiver channels capable of 16-bit resolution at a 2-MHz sampling rate. This collection of hardware allows gathering of high-quality imaging and spectroscopic data, since the shim system should be able to generate extremely uniform fields, and the gradients, in conjunction with the RF transmission and receiver subsystems, allow collection of data at the extremely high rates necessary for functional magnetic resonance studies. This scanner is housed in the MCW CIR.


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