Just before the magnetic flux begins to penetrate the material

Just before the magnetic flux begins to penetrate the material
The compound SiV3, is a type-II superconductor At temperatures near absolute zero the two critical fields are Be1 = 55.0 mT and Bc2 = 15.0 T. The normal phase of SiV3 has a magnetic susceptibility close to zero. A long, thin SiV3 cylinder has its axis parallel to an external magnetic field Bo in the +x-direction. At points far from the ends of the cylinder, by symmetry, all the magnetic vectors are parallel to the x-axis. At a temperature near absolute zero the external magnetic field is slowly increased from zero. What are the resultant magnetic field B and the magnetization M inside the cylinder at points far from its ends? 
(a) Just before the magnetic flux begins to penetrate the material, and 
(b) Just after the material becomes completely normal?