This document is a specification for a 7.0 TESLA/400MM room temperature bore magnet system. The system is a complete superconducting magnet system intended primarily for research studies on the clinical/biological applications of NMR imaging (MRI) and NMR spectroscopy (MRS). The system consists of a highly homogeneous superconducting magnet (300MHz 1P, 7.05 Tesla) housed in a horizontal room temperature bore (400mm), low-loss helium cryostat. Field shimming is normally accomplished using both superconducting and room temperature shim coils. For imaging applications, X, Y, and Z gradient coils can also be provided with the system. Normally, the room temperature shims and gradients are mounted on independent non-conducting formers and are positioned.
This document provides technical specifications for the MRBR 7.0/400 system, a complete superconducting magnet system intended primarily for research studies on the clinical/biological applications of NMR Imaging (MRI) and NMR Spectroscopy (MRS). The system consists of a highly homogeneous superconducting magnet housed in a horizontal room temperature bore, low-loss helium cryostat.
The specification details the superconducting magnet, including its multi-filamentary NbTi conductor construction, field homogeneity, and operating current. It also covers the cryostat design, dimensions, and cryogen details for both liquid helium and liquid nitrogen. The document lists the scope of supply, including electronic consoles, gradient coils, and various monitoring units.
| Central field | 7.05 Tesla (300MHz 'P) |
|---|---|
| Field stability | Less than 0.05 ppm/hour |
| Operating current | 178 Amps (nominal) |
| Field homogeneity (Superconducting only) | Less than 20ppm over 20cm dsv |
| Field homogeneity (Fully shimmed) | Less than 5ppm over 20cm |
| Room temperature clear bore | 400mm |
| Length of cryostat | 1840mm |
The system is intended primarily for research studies on the clinical and biological applications of NMR imaging and spectroscopy.
The magnet has a central field of 7.05 Tesla.