Comparative study and sensitivity analysis on different coil design approach for 1 T HTS extremity MRI magnet Chand Sumit Kumar1,*, Gour Abhay Singh1, Datta Tripti Sekhar1 1Cryogenic Engineering Centre, IIT, Kharagpur, West Bengal, 721302 *E-mail ID: skchand321@gmail.com
Online published on 4 December, 2023. A comparative study for 1.0 T magnet containing double pancakes (DPs), for extremity MRI was carried out by taking two distinct coil design approaches (Multi-coil and Compensate solenoid) with COMSOL Multiphysics. The DP coils were made up with 4 mm wide 2G-HTS tape manufactured by SuNAM (SCN04200). The magnet was operated at 50 A and 65 K with parameters such as inner diameter, outer diameter and magnet length that were restricted to 200 mm, 500 mm and 350 mm respectively. A field homogeneity of 50 ppm over a diametric spherical volume (DSV) of 80 mm has been selected for both design approaches. The major parameters such as peak axial and radial field, 5G stray field, magnetic field inhomogeneity, length and outer diameter of magnet and total consumption of HTS tape are compared for the best configuration of two design approaches. Also, a sensitivity analysis corresponding to the field homogeneity is performed by varying the 1 turn in the constituent DP coils. Top Keywords HTS Magnet, Multi-Coil Design, Compensated Solenoid Design, Homogeneity. Top |