TRANSIENT ELECTROMAGNETIC ANALYSIS AND THERMAL DESIGN ON THE MAGNET OF 3-GeV SYNCHROTRON

摘要

We used a coupling method of 3D electromagnetic and thermal analysis for 3-GeV synchrotron magnets. The accuracy of the analysis was confirmed by tests on the R&D magnets. The magnets were designed to operate at 25 Hz and heat generations were of great concerns. We calculated the losses due to eddy currents and iron losses, and they were included in thermal analyses. The eddy current losses were the major heating up sources and slits were effective to reduce them. In the magnet designs, the slit arrangements were optimized to decrease temperature rises.