Gradient Coil Induced Joule Heating in a MRI Magnet

Keywords

addition additional adversely affect allowed amplitude article assuming authors background basic boil called capability certain china coil coils cold composite conductive conductively conductivity converted cooled cooling costs coupled critical cryostat curve cylinder damping denoting design designs dielectric discussed displacement disturb eddy electric eliminated envelope epoxy equations even excessive excitation external extremely field force former freq frequencies frequency full fully generate global governing gradient hand head heat heating helium hence includes incorporates increasing induce induced infinite initial inner interaction joule known limited local loss losses macroscopic magnet magnets mainly manipulation many mass mechanical metal minimization model motion motional much operating optimization optimized parts peaks people phenomenon physical pressure prevented problem pulses pure quality rapidly reduced republic respectively responsible rise scanner several shanghai shield shielding sine smooth solved source start static stiffness strengths structure structures suitable superconducting superconductors supplied support surrounding system tangent theory thermal turn vacuum various vessel vibrate vibration wave wires