Low Cost Open MRI Systems using MgB2 Coils

描述（由申请人提供）：我们正在开发一种低成本的超导体导线，与传统金属超导体相比，它可以在4-30 K范围内工作，用于mri，仅在4 K下工作。这将使成本更低的核磁共振成像和每个病人做核磁共振分析的成本更低。核磁共振系统的成本是每个病人做核磁共振的成本中最大的驱动因素，尤其是开放式核磁共振。通过降低MRI系统的成本，患者的成本将会降低。如果可以将超导工作温度从4 K提高到20 K，则降低MRI系统的成本可能是重要的。第二阶段的目标是证明MgB2超导体导线可以在10-30 K范围内用于开放式和封闭式MRI系统的线圈中制造。在SBIR的第一阶段，Hyper Tech Research展示了具有足够高磁场的小线圈，可用于开放式和封闭式MRI系统。在这个第二阶段，我们打算在更长的长度和线圈形式中展示改进的导线性能，以便开发更大的开放式MRI系统。我们打算展示持久关节，并通过与MRI制造商合作，在几家MRI公司启动MgB2线圈的开发工作

DESCRIPTION (provided by applicant): We are developing a low cost superconductor wire that can operate in the 4-30 K range compared to traditional metal superconductors for MRIs that operate at only 4 K. This will enable a lower cost MRI and a lower per patient cost to do a MRI analysis. The MRI system cost is the largest cost driver in the per-patient cost to do a MRI for a patient especially with open MRIs. By lowering the cost of MRI systems the cost to patients will be lower. Lowering the cost of the MRI system can be significant if the superconducting operating temperature can be raised from 4 K to 20 K. The goal of this proposed Phase II is to demonstrate that MgB2 superconductor wires can be fabricated in coils that function in the 10-30 K range for open and enclosed MRI systems. In the SBIR Phase 1 Hyper Tech Research demonstrated small coils with fields high enough to be useful for open and enclosed MRI systems. In this Phase II we intend to demonstrate improved wire properties in longer length and in coil form so larger open MRI systems can be developed. We intend to demonstrate persistent joints and through collaborating MRI manufacturers initiate MgB2 coil development efforts at several MRI companies