WHOLE-BODY FAST FIELD-CYCLING MAGNET, GRADIENT AND SHIM ASSEMBLY, WITH THE CORRESPONDING CURRENT AMPLIFIERS

Tender description

AWARD NOTICE - The University of Aberdeen is leading the research and development efforts of Fast Field-Cycling imaging (FFC imaging). This is a new technology that derives from MRI but allows controlling the main magnetic field, contrary to conventional scanners that operate at a fixed magnetic field strength. To achieve such a level of control the main magnet must be carefully designed to exhibit a low inductance so that it can be driven to alter its field strength within 10 to 20 ms (ramp time), using gradient-type power supplies. Lot 1: Main Magnet, Gradient coils, Shim Correction coils and Environmental Correction coils AWARD NOTICE for - A whole-body electromagnet, a three-axis gradient system, a set of correction coils (‘shims’) to improve the homogeneity of the main magnet, and a set of environmental correction coils to compensate for external magnetic fields (including Earth’s field). Further detail available in Invitation To Tender documentation. Lot 2: Power Supplies and current amplifier for the Main Magnet system AWARD NOTICE for - Three power current amplifiers that will each drive one segment of the main magnet. It is important to consider that the three magnet segments are tightly coupled and act as 1:1 transformers. Further detail in the Invitation To Tender Documentation. Lot 3: Current amplifiers for the Gradient system AWARD Notice for - Three current amplifiers that will each drive one of the gradient coils from Lot Number 1 Further detail available in the Invitation To Tender documentation.