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CHAPTER IIFLUX PINNING IN TYPEII MATERIALS
Model Forms of JcB
E Physical Models of Pinning
14 other sections not shown
adiabatic annealed approximately axial field axis Bx(z calculated cavity characteristic fields cm long composite material cooled to 4.2K copper critical current density critical current levels critical state model currents flow determined diameter disk effect equation estimate experimental experiments expression field difference field inside field profiles field was reduced fields trapped flux front flux jump occurred flux jumping behavior flux lines flux pinning flux trapping fluxoids form of Jc(B function Hall probe heat capacity heat treatment heat-treated higher fields hollow cylinder increased Jc(T low fields magnetic field magnetization curve measured Meissner effect Nb-Ti Nb-Ti/Cu Nb3Sn sample niobium obtained Pb-Bi alloys perpendicular Phys pinning force predicted radius reversible magnetization sample was cooled sextupole shielding ability shielding test spirals strip superconducting superconductor temperature theory thermal thermal conductivity transverse dipole fields transverse field trapped field trapping and shielding tube tubular samples