A method to evaluate the temperature profile in a superconducting magnet during a quench

A simple method to derive the temperature profile in a superconducting magn et during a quench from measured voltage signals is described. The method w as applied to several Large Hadron Collider single aperture dipole models. These measurements show the strong correlation between parameters of the ma gnet protection system and powering on the one hand and the resulting tempe rature gradient in the magnet coil on the other. The method allows the loca lisation of critical points in the magnet design, in particular, the effici ency of the magnet protection system can be evaluated.