Title :
Analysis of Trapped Magnetic Field During Magnetization Process by Using SPA Method of Bulk Superconductor
Author :
Alloui, Lotfi ; Khene, Mohamed Lotfi ; Kameni, Abelin ; Bouillault, Frederic ; Mimoune, Souri Mohamed ; Feliachi, Mouloud
Author_Institution :
Lab. de Genie Electr. de Paris, Gif-sur-Yvette, France
Abstract :
Trapped magnetic field is analyzed during magnetization processes of bulk superconductor by sequential pulsed field application method at low cooling temperatures of 44 and 20 K. Calculations are performed by solving the nonlinear transient A-V magnetic equation coupled to the heat equation thanks to a control volume method. The influence of the pulse number of the external magnetic field on the trapped field in the superconductor is presented.
Keywords :
cooling; magnetisation; superconducting materials; thermomagnetic effects; SPA method; bulk superconductor; control volume method; cooling; heat equation; magnetization process; nonlinear transient A-V magnetic equation; pulse number; sequential pulsed field application; temperature 20 K; temperature 44 K; trapped magnetic field; Barium; Cooling; Magnetic noise; Magnetic shielding; Magnetization; Mathematical model; Superconducting magnets; Control volume method (CVM); high-temperature superconductor; modified multipulse technique combined with stepwise cooling method (MMPSC); pulsed field magnetization (PFM); sequential pulsed field application (SPA) method;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2364985
